16041 Fleming Labs SSD WP

Via Email

April 26, 2017

NC DEQ - Brownfields Program
1314 Mallard Ridge
Tega Cay, SC 29708

Attention: Ms. Carolyn Minnich

Re: Sub-Slab Depressurization Design
Fleming Laboratories
Charlotte, North Carolina
DEQ Brownfields Project No. 16041-12-060
H&H Project No. FMG-005

Dear Carolyn,

As requested in our telephone conversation earlier this week, Hart & Hickman, PC (H&H) is
providing the attached sub-slab depressurization (SSD) design for the existing Fleming
Laboratories building located at 2215 Thrift Road in Charlotte, North Carolina (Brownfields #
16041-12-060). Indoor air samples were collected on September 13, 2016 in accordance with
our approved August 31, 2016 Indoor Air Sampling Work Plan, Revision 1. Chlorinated volatile
organic compounds exceeded industrial screening levels (see attached summary table and lab
sheets). We discussed these data via conference call with you, Sandra Mort, and Caroline
Edwards on October 4, 2017. In that call, we noted that there are no women of child bearing age
in the facility, and we agreed that a SSD system was warranted.

The February 20, 2017 SSD design document is attached. This design was prepared by Clean
Vapor LLC, a nationally-recognized vapor intrusion mitigation specialist. The design was
slightly modified as described the attached one page document dated April 12, 2017. H&H is
proposing to oversee installation of this SSD system. After system installation, H&H will check
for the presence of vacuum under the slab at our previously installed vapor pin locations as
evidence that the system is working.
Ms. Carolyn Minnich
April 26, 2017
Page 2

S:\AAA-Master Projects\Fleming Labs (FMG)\FMG-005 SSD Installation\SSD Work Plan\Fleming SSD WP.doc

We look forward to your approval of this design. If you have any questions or comments, please
do not hesitate to contact me.

Very truly yours,
Hart & Hickman, PC

Matt Bramblett, PE
Principal

Attachments
Cc: Mr. George Fleming (via email)
Table 1
Summary of Indoor Air Analytical Data
Fleming Laboratories
Charlotte, North Carolina
H&H Job No. FMG-004
Sample ID IAS-1 IAS-2 IAS-3 IAS-4 IAS-5 BS-1
Sample Date 9/13/2016 9/13/2016 9/13/2016 9/13/2016 9/13/2016 9/13/2016
Units (ug/m3) (ug/m
3) (ug/m
3) (ug/m
3) (ug/m
3) (ug/m
3) (ug/m
3)
VOCs (TO-15)
Carbon Tetrachloride 0.41 0.42 0.44 0.44 0.46 0.41 2.04
Chloroform 0.82 2.3 0.66 0.56 0.57 0.12 J 0.53
1,1-Dichloroethane 0.21 0.16 0.24 0.16 0.16 <0.14 7.67
1,2-Dichloroethane 0.14 J 0.062 J 0.045 J <0.14 <0.14 <0.14 0.472
1,1-Dichloroethylene 2.4 1.6 2.2 1.5 1.6 <0.14 175
cis-1,2-Dichloroethylene 3.2 1.9 2.9 2.0 2.1 <0.14 NS
trans-1,2-Dichloroethylene <0.14 <0.14 <0.14 <0.14 <0.14 <0.14 NS
1,2-Dichloropropane 0.45 0.34 0.49 0.33 0.35 <0.16 1.23
Tetrachloroethylene 100 45 60 46 46 0.20 J 35.0
Trichloroethylene 13 6.7 9.2 6.8 6.8 <0.19 1.75
Vinyl Chloride <0.090 <0.090 <0.090 <0.090 <0.090 <0.090 2.79
Notes:
VOCs = volatile organic compounds
J = denotes that the concentration detected is above the method detection limit, but below the reporting limit; therefore,
the value is estimated.
NS = screening criteria not specified; µg/m3 = micro grams per cubic meter
DWM Non-
Residential
IASL1
1) NC Department of Environmental Quality (DEQ) Divison of Waste Management Non-Residential Indoor Air Screening
Levels at 1*10-6 (March 2016)
Bold values indicate exceedances of DWM Non-Residential IASL
\\hhfs01.harthickman.local\masterfiles\AAA-Master Projects\Fleming Labs (FMG)\FMG-004 Brownfields Agreement\VI Report\Vapor Data.xls
9/26/2016
Table 1 (Page 1 of 1)
Hart & Hickman, PC
TMW-2
TMW-1
T
H
R
I
F
T

R
O
A
D
JAY S
T
R
E
E
T
GRAVEL
PARKING
IAS-5
IAS-4
IAS-3
IAS-2
IAS-1
BS-1
JOB NO. FMG-004
REVISION NO. 0DATE: 9-26-16
FIGURE NO. 3
LEGEND
SUBJECT PROPERTY BOUNDARY
TEMPORARY MONITORING WELL
LOCATION
INDOOR AIR SAMPLE LOCATION
AMBIENT AIR SAMPLE LOCATION
FLEMING LABORATORIES
2215 THRIFT ROAD
CHARLOTTE, NORTH CAROLINA
INDOOR AIR SAMPLE LOCATION MAP
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
FLEMING
(OPERATING)
PACKING ROOM
WAREHOUSE
OFFICE AREA
S:\
A
A
A
-
M
a
s
t
e
r

P
r
o
j
e
c
t
s
\
F
l
e
m
i
n
g

L
a
b
s

(
F
M
G
)
\
F
M
G
-
0
0
4

B
r
o
w
n
f
i
e
l
d
s

A
g
r
e
e
m
e
n
t
\
F
i
g
u
r
e
s
\
F
i
g
u
r
e
s
.
d
w
g
,

F
I
G

3
,

9
/
2
6
/
2
0
1
6

3
:
2
8
:
4
4

P
M
,

z
b
a
r
l
o
w
Page 1 of 16
Page 2 of 16
Page 3 of 16
Page 4 of 16
Page 5 of 16
Page 6 of 16
Page 7 of 16
Page 8 of 16
Page 9 of 16
Page 10 of 16
Page 11 of 16
Page 12 of 16
Page 13 of 16
Page 14 of 16
Page 15 of 16
Page 16 of 16

148 Route 94, P.O. Box 688, Blairstown, NJ 07825 / Voice 908.362.5616 / Fax [phone]

VAPOR INTRUSION MITIGATION SYSTEM
PLAN DESIGN
for:
Fleming Laboratories
2215 Thrift Road, Charlotte, North Carolina

Prepared for:

Mr. Kevin Slaughter
Hart Hickman
2923 South Tyron Street, Suite 100
Charlotte, North Carolina 28203

Prepared by:

Mr. Thomas E. Hatton
NRPP 104705
Clean Vapor, LLC
148 Route 94
P.O. Box 688
Blairstown, NJ 07825

February 20, 2017

www.cleanvapor.com
Page 2 of 33
Table of Contents

Table of Contents .......................................................................................................................... 2
1.0 Introduction ........................................................................................................................ 3
2.0 System Design and Installation ......................................................................................... 9
3.0 General Installation Notes ............................................................................................... 15
4.0 System Materials .............................................................................................................. 15
5.0 Administrative and Final Report ................................................................................... 16
6.0 Pictures.............................................................................................................................. 18

Appendix A –Drawings
Appendix B – Equipment Cut Sheets

www.cleanvapor.com
Page 3 of 33
1.0 Introduction
1.1 Background
Clean Vapor, LLC (Clean Vapor) was retained by Hart Hickman to conduct a building
investigation, diagnostic testing, and prepare a vapor intrusion mitigation system (VIMS) design
for Fleming Laboratories at 2215 Thrift Road, Charlotte, North Carolina. The building is
approximately 14,700 square feet and is mostly open warehouse space with the offices in the
northwest corner. The floor slab is at an elevation that is approximately four to five feet above
the parking areas that surround the building. The exterior walls are masonry blocks with a brick
exterior. The wood roof is supported by a steel column truss system where the columns are 20
feet x 40 feet on center. The roof construction is three abutted large arched steel truss sections
with wood rafters that are perpendicular to the steel trusses. The heat in the warehouse is
supplied by roof mounted gas heaters. The office area has an HVAC duct system for heat and air
conditioning.

Building of Concern
The proposed VIMS has been designed to create a negative pressure field (relative to typical
building pressures at the time of diagnostic testing) under the slab of the building, in the areas
identified on the above figure, so that sub slab vapors will be unlikely to migrate upward into the
building. Clean Vapor’s design consists of specifications and drawings that provide details for
construction of a Sub Slab Depressurization System (SSDS). If installed, operated and
maintained per specifications, the SSDS will be able to maintain negative sub slab pressures
under reasonably anticipated conditions and prevent soil borne vapors from entering into the
building. The goal of the system is to create a sub slab negative pressure field with a minimum
vacuum field of -0.004 inches of water column ("w.c.). Because of the building’s volume,
vertical profile, low permeable soils and barrel trussed roof area, a feature that amplifies the
convective transfer of wind driven pressure differentials, response driven dynamic controls have
been integrated into this design. Dynamic Controls provide significant power savings, real-time

www.cleanvapor.com
Page 4 of 33
monitoring of the system and reduce the long term Operation, Maintenance and Monitoring
(OM&M) cost of operating the system.
The information in this report including text, photographs and diagrams shall be considered to be
the intellectual property of Clean Vapor, LLC and is intended to facilitate the vapor intrusion
mitigation of 2215 Thrift Road, Charlotte, North Carolina. Any reproduction of the content of
this report in part or total for any other purpose is prohibited without the written consent of Clean
Vapor, LLC. Copyright © 2017 Clean Vapor, LLC.
1.2 Diagnostic Procedures
In accordance with the accepted design proposal and plan for diagnostics dated October 26,
2016, a building investigation and diagnostic testing was performed on January 20, 2017.
Two (2) 2 5/8-inch diagnostic suction hole(s) were drilled through the floor slab and
approximately five gallons of soil removed from each hole. There were three other suction holes
that were existing from a previous investigation. In total, there were five holes from which
pressure field extension tests were conducted. A calibrated shop vacuum was used to apply
vacuum to the sub slab material to simulate vacuum fields. Smaller test holes were drilled on a x
and y axis throughout the areas within the suction holes’ radii of influence. The motor speed of
the vacuum was varied to develop a performance curve that would enable us to project the radius
of influence and airflow characteristics of different blowers. Static vacuum and airflow
measurements were conducted at the suction holes. A micro-manometer was used to measure
pressure differentials at the remote test holes. A vane anemometer was used to measure airflow
that was yielded from the sub slab. The acquired data has been interpolated to make reasonable
assumptions to predict pressure field extension and airflow. Baseline pressure differential
measurements were collected to establish building pressures relative to the sub slab material.
The results of vacuum field extension testing are shown in the Diagnostic Data section of this
report. Pictures of the vacuum field extension testing being performed can also be seen in the
pictures section and relevant points from testing are shown on a sheet in the attached drawings.
1.3 Diagnostic Data
Test hole locations can be found in the attached drawings. All distances are in feet and vacuum
measurements in inches of water column. The table title shows the projected radius of influence
(in feet) and the approximate applied vacuum (in inches of water column) required to produce
that radius.

This Space Intentionally Left Blank

www.cleanvapor.com
Page 5 of 33

1.3.1 Test Suction Point #1

Vacuum Applied (''wc): Baseline -37.2 -30 -23
Airflow (cfm): - 18.5 16.3 14.8
Test Hole # Distance (ft.)
V 1' +0.0011 >-5.0000 -4.5700 -3.2800
T-1 10' +0.0016 -1.8860 -1.5840 -1.2630
T-2 20' +0.0021 -0.0309 -0.0234 -0.0245
T-3 30' +0.0019 -0.0056 -0.0041 -0.0065
T-4 40' +0.0040 -0.0079 -0.0083 -0.0035
T-5 10' +0.0090 -0.0545 -0.0248 -0.0585
T-6 20' +0.0003 -0.0278 -0.0438 -0.0340
T-7 30' +0.0053 +0.0043 +0.0041 +0.0071
T-8 40' +0.0011 +0.0001 +0.0006 +0.0010
T-9 10' +0.0009 -1.8550 -0.1751 -1.3760
T-10 20' +0.0013 -0.0468 -0.1391 -0.0468
T-11 30' +0.0125 +0.0008 -0.0014 +0.0004
T-12 40' +0.0010 +0.0008 +0.0028 +0.0002
T-13 10' +0.0013 0.0326 -0.0441 -0.0099
T-14 20' +0.0010 +0.0004 +0.0008 +0.0001
T-15 30' +0.0002 +0.0002 +0.0043 +0.0002
T-16 40' +0.0006 +0.0145 +0.0025 +0.0035
T-44 50' +0.0005 -0.0051 -0.0011 +0.0082

1.3.2 Test Suction Point #2
Vacuum Applied (''wc): Baseline -35.12 -30 -25
Airflow (cfm): - 19.5 18.5 18.4
Test Hole # Distance (ft.)
V-2 1' +0.0011 -4.2100 -3.4200 -0.4170
T-17 10' +0.0012 -0.0239 -0.1578 -0.1798
T-18 20' +0.0076 -0.1166 -0.1065 -0.0776
T-19 30' +0.0048 -0.0257 -0.0206 -0.0213
T-20 10' +0.0072 -1.1920 -1.0400 -0.7340
T-21 20' +0.0006 -0.0039 -0.0157 -0.0164
T-22 30' +0.0061 -0.0151 -0.0153 -0.0144
T-23 40' +0.0009 -0.0094 -0.0256 -0.0106
T-1 36' +0.0016 -0.0266 -0.0199 -0.0198
T-2 28' +0.0021 -0.0345 -0.0318 -0.0277
T-3 24' +0.0019 -0.0617 -0.0577 -0.0477
T-4 21' +0.0040 -0.0138 -0.0031 -0.0018
T- 19 29' +0.0048 -0.0673 -0.0684 -0.0262
T-44 25' +0.0005 -0.0097 -0.0124 -0.0076

www.cleanvapor.com
Page 6 of 33

1.3.3 Test Suction Point #3
Vacuum Applied (''wc): Baseline -8.51 -4.04 -2.51
Airflow (cfm): - 114.3 69.8 59.5
Test Hole # Distance (ft.)
V 1' +0.0017 -1.5800 -0.7330 -0.4680
T-24 10' +0.0019 -0.1422 -0.0761 -0.0523
T-25 20' +0.0022 -0.1092 -0.0634 -0.0424
T-26 30' +0.0021 -0.0933 -0.0538 -0.0369
T-27 10' +0.0012 -0.4640 -0.2320 -0.1548
T-28 20' +0.0001 -0.0760 -0.0268 -0.0282
T-29 30' +0.0008 +0.0003 +0.0003 +0.0003
T-30 40' +0.0009 +0.0002 +0.0008 +0.0016
T-31 10' +0.0010 -0.3110 -0.1568 -0.1074
T-32 20' +0.0009 -0.0538 -0.0293 -0.0202
T-33 28' +0.0010 -0.0408 -0.0234 -0.0159
T-43 71' +0.0016 -0.0303 -0.0174 -0.0124
T-56 97' +0.0023 +0.0000 +0.0004 +0.0001

1.3.4 Test Suction Point #4
Vacuum Applied (''wc): Baseline -33.75 -20 -10 -5
Airflow (cfm): - 19.1 16.7 12.9 10.3
Test Hole #
Distance
(ft.)

V 1' +0.0018 -18.83 -1.2170 -0.7860 -3.4800
T-34 10' +0.0047 -0.3420 -0.2200 -0.1313 -0.0637
T-35 20' +0.0034 -0.1059 -0.0957 -0.0589 -0.0287
T-36 30' +0.0037 -0.0042 -0.0018 -0.0011 +0.0013
T-37 40' +0.0011 -0.0044 -0.0014 +0.0471 +0.0009
T-38 10' +0.0024 -0.0490 -0.0322 -0.0182 -0.0084
T-39 20' +0.0013 -0.0026 -0.0009 -0.0014 +0.0001
T-40 30' +0.0016 -0.0018 -0.0007 -0.0008 +0.0011
T-41 10' +0.0015 -0.0121 -0.0081 -0.0038 -0.0018
T-42 20' +0.0027 -0.3340 -0.2230 -0.1259 -0.0590
T-43 30' +0.0016 +0.0004 +0.0009 +0.0018 +0.0013
T-56 29' +0.0023 -0.0123 -0.0016 -0.0001 -0.0018
T-57 38' +0.0028 -0.0108 -0.0057 -0.0027 +0.0001

www.cleanvapor.com
Page 7 of 33

1.3.5 Test Suction Point #5
Vacuum Applied (''wc): Baseline -35.94 -30.0 -23.0
Airflow (cfm): - 19.4 18.2 17.5
Test Hole # Distance (ft.)
T-19 3' +0.0048 -16.6200 -14.9100 -12.0200
T-18 10' +0.0076 -2.8100 -2.7000 -1.7820
T-17 21' +0.0012 -0.0109 -0.0017 -0.0009
T-20 32' +0.0072 -0.0155 -0.0120 -0.0096
T-21 35' +0.0006 -0.0033 -0.0013 -0.0007
T-22 39' +0.0061 -0.0045 -0.0052 -0.0008
T-23 41' +0.0009 -0.0036 -0.0151 -0.0021
T-4 11' +0.0040 -0.0087 -0.1974 -0.1878
T-3 15' +0.0019 -0.0799 -0.0708 -0.0547
T-2 23' +0.0021 -0.0104 -0.0097 -0.0081
T-1 32' +0.0016 -0.0088 -0.0096 -0.0047
T-44 13' +0.0005 -0.0620 -0.0514 -0.0400

1.4 Diagnostic Data
1.4.1 Indoor to Outdoor Pressure Differentials
Below are the indoor to outdoor pressure differential measurements. All of the exterior doors
were closed. No mechanical depressurization devices such as exhaust fans were running while
these measurements were made. Each measurement listed below is a ten second average. During
the tests that occurred on January 20, 2017, the outdoor temperature was 55˚F, the winds were at
7 mph from the southeast and the barometer 29.88" Hg.
Differential Pressure Readings "w.c.
Indoor to Outdoor Air
55˚F Wind Speed 7 mph Southeast
Diff # 1 Diff # 2 Diff # 3 Diff # 4
1 +0.0025 0.0000 +0.0004 -0.0085
2 -0.0010 -0.0001 +0.0004 -0.0087
3 -0.0002 -0.0001 +0.0001 -0.0080
4 -0.0002 +0.0001 +0.0003 -0.0075
5 -0.0013 +0.0002 -0.0050 -0.0067
6 -0.0030 +0.0004 -0.0010 -0.0032
7 -0.0027 +0.0004 -0.0006 -0.0035
8 -0.0030 +0.0006 -0.0018 -0.0043
9 -0.0017 +0.0001 -0.0014 -0.0051
10 -0.0007 +0.0005 -0.0020 -0.0062
Building is Negative Building is Positive Building is Negative Building is Negative

www.cleanvapor.com
Page 8 of 33
1.5 Interpretation of Diagnostics
Vacuum fields were determined by evaluating the results of the negative pressure field testing.
The overall vacuum field extension testing provided data that could be used to develop a model
capable of projecting the negative pressure field that will prevent the upward migration of soil
gases into the occupied space.
Analysis of the diagnostic data revealed varying soil permeability throughout the building. The
center of the building is highly compacted low permeable fill with limited vacuum field
extension. 23" to 30" of vacuum is only expected to extend 20 to 28 feet depending on the soil
conditions surrounding the suction point. These soils will require high vacuum low airflow
blowers to depressurize. Soils become looser and less compacted within ten to fifteen feet of the
exterior wall. These soils will require radial blowers that can generate ten or more inches w.c. of
vacuum and move several hundred cubic feet per minute (CFM) of soil gas.
1.6 Blower Selection and Suction Point Locations
Blowers and suction points have been selected and specified based on the volume of air yield,
static pressure readings, and measured vacuum field extension recorded during the diagnostic
testing. The design objective is to create a negative pressure field with a minimum performance
of -0.004" w.c. at the outer extent of the negative pressure field. Pressure field projections are
adjusted to accommodate anticipated field installation conditions. For example, when removing
one cubic foot of soil under the slab, the static pressure can drop 20% and the volume of air
increase subject to the limitations of the soil and blower. The radius of the negative pressure
field beneath the slab may also increase. Since variability in soils and permeability exist beneath
the slab, the projected radius is not based on a pure mathematical extrapolation but a total
approach that includes the aforementioned conditions. An examination of the soil matrix, sub
slab permeability mapping data, and experience factors are all considered when developing these
projections. The following graph shows the blower curve for the fans to be installed at the site.

This Space Intentionally Left Blank

www.cleanvapor.com
Page 9 of 33
2.0 System Design and Installation
2.1 System Layout
There will be four (4) mitigation systems installed. The table below displays the targeted applied
vacuum and projected soil airflow yields to meet minimum pressure field requirements.
System
# Fan Model
Applied
Vacuum
("w.c.)
Projected
Airflow
(cfm)
Number of
Suction
Points
Building
Section
1 Cincinnati Fan PB-14A
2.0 HP 3 Phase 480 11 480 6 South
2 Vapor Dynamics IC 4519
or Equivalent 220V 25 115 5 Center
3 Vapor Dynamics IC 4519
Or Equivalent 220V 25 115 6 Center
4 Cincinnati Fan PB-14A
2.0 HP 3 Phase 480 11 490 7 North East
2.2 Suction Holes
A total of twenty-four (24) suction points will be installed. See Drawing Sheets for the locations
of suction points, mitigation piping and blower locations. To enhance the vacuum field
distribution and limit any disruption to building use, the suction points will be located near
existing walls and on structural columns. The specific location of the suction points shall be
agreed upon by Clean Vapor and the building owner’s representative prior to installation. When
drilling suction points, the procedures listed in the General Installation section shall be followed
to minimize damaging any sub slab utilities. Approximately 1 cubic foot of soil will be removed
from each suction point. Once the suction point has been developed and sealed, vacuum should
be applied to the suction point using a calibrated shop vacuum with the same performance as the
shop vacuum used during diagnostics. The first ten feet of each suction point riser pipe should
be installed in Schedule 40 steel pipe to minimize potential damage from forklifts
The environmental consultant, or building owner is responsible for soil testing and disposal. It
is estimated that one five yard roll off containers will be required for disposal of the soil and one
five yard roll off containers for concrete cores and cuttings associated with suction point
development.
2.3 System Piping
All horizontal pipe runs between the fans and the first suction point will be installed with one
inch slope back to a suction point for each ten feet of horizontal pipe run. All vertical pipe runs
will be installed plumb. All horizontal runs after the first suction point may be run level.
However, in no case will the piping be installed so as to create a possible water trap in the
piping. All overhead piping and fittings installed, unless otherwise noted or specified, shall be
Schedule 40 PVC pipe.

www.cleanvapor.com
Page 10 of 33
The PVC pipe will be supported at least every six feet of horizontal run and at least every ten
feet of vertical run. Suction point riser pipes will be secured to the wall or column adjacent to the
suction point. Conduit channel with pipe clamps can also be used to support pipe routed along
the ceiling or walls. Pipe cannot be supported by other building piping or ducts. Swivel ring or
standard bolt-type clevis will be used to support pipe. The first ten feet of pipe from the suction
points for Systems One and Four shall be 3" Schedule 40 steel. The first ten feet of pipe from the
suction points for Systems Two and Three shall be 2" Schedule 40 steel.
There may be a need to balance airflow and equalize the distribution vacuum throughout the
system. Inline gate valves shall be installed in each suction point riser pipe.
2.4 Blower Installation and Start Up
There will be four (4) mitigation blowers installed on the roof of the building. The locations of
the blowers are indicated on the attached drawings and a typical photo example can be seen in
the pictures section. The blowers were specified based on diagnostic vacuum distribution and
airflow measurements as discussed earlier. When soil is removed from the suction point, solution
channels that were not detected during the diagnostic phase are sometimes discovered. This can
result in greater than expected airflow and decreased static vacuum. It cannot be projected if or
when this may occur but when it does it is considered to be good because it can allow the
consultant the opportunity to specify a lower vacuum and horse power blower which results in
the motor operating at greater efficiency and under less load. After the suction points have been
developed, they shall be individually tested using a vapor blower or calibrated vacuum to
simulate the vacuum to be applied by the permanent blower. This should be done before the
permanent blower is mounted to the stand for final activation. Static vacuum, airflow and the
pressure differential at a temporary floor port shall be measured. The temporary floor port should
be located at the projected outer extent of the negative pressure field. Most of these ports will be
mid-way between a suction point that is located on the next column line up and over. A data set
shall be attained at maximum motor speed. The motor speed should then be reduced until the
distant test port measures -0.008" w.c. The second set of static vacuum and air flow
measurements shall be recorded. The temporary ports shall be numbered on the suction point
drawing. This data shall be logged in table format and retained. Once the suction point
performance of all of the suction points within an individual system has been measured and the
extension of the negative pressure field verified, the data should be evaluated to confirm that the
blower that was specified matches the static vacuum and airflow yield potential of the total
system. This procedure and the interpretation of the data should be done by a person who is
experienced and skilled in the art of evaluating suction point data and selecting blowers for
optimal performance and energy efficiency. If the system is yielding a greater or less than
anticipated volume of soil gas, the blower shall be changed to a blower in an appropriate
performance range. Once an individual system’s performance has been verified the
manufacturer shall be directed to ship the properly sized blower.

www.cleanvapor.com
Page 11 of 33
The roof mounted blowers will be located directly above or as close as possible to the steel roof
trusses. The location and blower type is noted by a symbol on the System Drawing. The blower
exhaust will be a minimum of two feet above the roofline. The blower exhaust will be a
minimum of twenty feet from windows, doors, air intakes, passive relief vents or any other
openings in the building that cannot be easily repaired. The final location of each blower will be
field verified by the installation contractor and approved by the owner prior to install
2.5 Sealing
2.5.1 Cracks and Joints
Any visible expansion joints or slab cracks in the area being mitigated that have a 1/16 inch or
greater opening were sealed in December 2016 in preparation of the pressure field extension
testing. Small cracks were cleaned with a hook blade and cotter pin puller. Cracks and
expansion joints were key channel cut prior to sealing using a crack saw fitted with a dust
collecting device. Cracks were sealed with a gun-grade urethane caulk sealant. Any openings in
the slab, such as those that may occur around conduit pipe penetrations through the slab, were
cleaned and sealed with gun-grade urethane caulk. Expansion joints that are greater than ¼ inch
in width or greater than 3/8 inch below the slab were sealed with backer rod and self-leveling
urethane sealant. The block wall has a large expansion joint which in some areas is two inches
wide. This opening was sealed with backer rod, gun-grade and self-leveling urethane sealant. All
sealed floor cracks should be noted on the As Built drawing.
2.6 Blower Wiring
Dedicated breakers shall be used for the mitigation blowers. This will prevent the blowers from
being shut off when a circuit is powered down for an unrelated function. Based on the blower
amperage requirements, a licensed electrician will determine the load for each circuit. The panel
location and breaker number will be referenced in the final report and on the system labels.
Because of the amperage requirements, a metered sub panel may be required for accuracy and
ease of billing. The panel selected shall be identified and approved by the building owner.
Electric panel locations, wire runs and breaker numbers shall be noted on the As Built Electrical
Drawing and included final commissioning report.
2.7 Variable Frequency Drives
The radial blowers to be installed will be equipped with Variable Frequency Drives (VFD). The
installation of a VFD allows us to tune the radial blower’s performance to apply the most
effective and efficient vacuum to the suction points in the system. The VFDs also allow for an
incremental and even distribution of voltage during start up or in the event of a power outage.
The VFD will be integrated into the dynamic control and management system and, through a
control logic system, will actively manage the speed of the blowers to ensure that the specified
vacuum fields are maintained. The management system also provides for onsite and offsite
blower control.

www.cleanvapor.com
Page 12 of 33
2.8 Vacuum Indicators
Magnehelics will be installed to indicate the static vacuum generated by each system. To the
extent practicable, the range of the Magnehelics will be selected so that the indicator needle is
close to or just to the right of center on the dial face. The Magnehelics shall be enclosed in
protective enclosures. The low pressure Magnehelic port will be connected with 1/4” O.D. rigid
polyethylene tubing to a common conveyance pipe in the system. The polyethylene tubing
should arc to a higher elevation than where it exits the riser pipe before it is connected with the
Magnehelics. This will prevent condensation from running into the Magnehelics or creating a
water trap in the tube. Exposed sections of tubing below the 10-foot elevation will be enclosed
in rigid conduit. Because of the size of the building, to the extent possible, Magnehelics should
be grouped into a common panel. The exact location of the Magnehelic panel is at the discretion
of Clean Vapor, and the Owner and should be noted in the final system As-Built drawings.
2.9 Vapor Guardian 5500 Monitoring and Controls
Clean Vapor is a certified installer of the Vapor Dynamics, LLC Vapor Guardian 5500™
monitoring and controls panel. This panel offers the owner and consultant the ability to remotely
monitor the performance the vapor intrusion mitigation system including sub slab pressure
differentials, static system vacuum, and power consumption. This feature will ensure that sub
slab vacuum levels are not breached thus creating a potential sub slab vapor pathway.
The Vapor Guardian 5500™ will electronically notify the consultant in the event of a system
parameter fault. Electronic notifications can be triggered based on sub slab or system static
vacuum set points. The system integrates the use of a 3G Verizon modem for control and data
monitoring. If sufficient signal strength is not achieved at the location of the transmitter, a roof
mounted antenna, which is approximately 12 inches tall, may need to be installed. The exact
location of the monitoring hardware is at the discretion of the installation contractor and the
owner and shall be noted in the final system As-Built drawings. To accommodate the number of
blowers, two Vapor Guardian panels will be installed. Only one modem will be required. The
following metrics will be monitored for each system; applied vacuum, vacuum at the outer extent
of the pressure field, and power consumption.
The Vapor Guardian 5500TM, in addition to remotely monitoring the system, will also
dynamically control the blower systems. Dynamic controls enable the VIMS to maintain a
constant predetermined sub slab pressure differential that is individually set for each blower as
part of the electronic management and monitoring system. The system monitors the sub slab
vacuum levels and self corrects for pressure induced changes that may occur from HVAC
operation, exhaust hoods, wind loading and weather induced indoor pressure differentials. Wind
induced pressure differentials will be amplified because of the barrel truss roof construction. This
will be more problematic during the winter months when outside air is dense and temperature
differentials are the greatest. The same principles of moving air over a longer distance that
creates the vacuum to induce lift in airplane wings apply to this building. The low pressures that
are induced as air travels over the barrel truss roof will create a series of oscillating low pressure

www.cleanvapor.com
Page 13 of 33
pockets that will vary with amplitude and wind speed as wind speeds and direction change. Gusts
and the resultant turbulence will create the most severe low pressures. These low pressures are
transferred into the building though a variety of openings. The sub slab differential pressure
sensor is continually monitored by a programmable logic controller (PLC) which controls the
variable frequency drive (VFD) to adjust the blower speed to maintain the predetermined sub
slab vacuum set point. It is anticipated that a dampening function will need to be applied to the
drive algorithm so blowers do not servo in response to varying wind speeds. The performance
data from each blower is stored for analysis and reporting (if required). All performance metrics
are monitored hourly and an email is sent if a system’s metrics are operating outside of a
predetermined range. This system operates 24/7 and provides the finest energy saving and
liability reduction that technology offers.
Motor
Control
Zone VacuumSensor
Dynamic Control
Unit
Pressure Differential Probe Outer extension of vacuum field (permanent test port)
Patented Technology
Vapor Dynamics, LLC
Cloud Based
Management with Offsite
Control
Local Monitoring and AlarmsGate Valve

Vapor Guardian Control Logic and Monitoring Diagram

2.10 Pressure Transducers
Electronic monitoring and management of the individual vacuum fields is one of the more
critical components of this design. The selection of the electronic monitoring probe locations
occurs during start up after the blower system has been powered. There shall be one active sub
slab electronic probe location per blower system. Once the blower systems become operational,
the induced vacuum field should be mapped by drilling temporary test holes so that the
proportional strengths and outer extension of each blower vacuum field can be understood and
documented. Once the mapping process is completed, the locations of the permanent electronic
pressure differential ports are selected. These ports should be at a location that proportionally
relates to the outer extension of the negative pressure field. It is important that vacuum be

www.cleanvapor.com
Page 14 of 33
maintained at the mid point between the centrally located high vacuum suction points and the
mid range high airflow suction points that are located closer to the building’s exterior walls.
Once the locations of the permanent electronic test ports have been selected, a five-inch hole is
cored through the slab and a cylindrical area of soil approximately eight inches in diameter by
sixteen inches deep is removed from each hole. A ¾ inch PVC probe with a ¼ brass end is
centered in the hole, the polyethylene tubing connected and the shielding electrical conduit
secured. The void space within the hole is then filled with round washed river stone. Conduit
containing the vacuum tube is placed in a channel that is cut into the concrete slab. The channel
connects the probe location to the nearest wall or column where the pressure transducer and
enclosure will be located. The three-inch hole in which the probe end is located is then sealed
with a thin layer, one inch or less, of non-shrink grout which shall serve as a platform for a gas
tight seal that is formed using self-leveling urethane. This process ensures that the vacuum
levels measured by the transducer are accurate and not influenced by leakage from above the
slab. The top of the probe end well and slotted conduit channel shall then be filled with patch
concrete flush with the level of the existing floor.
2.11 Fire Stopping
PVC pipes that penetrate fire-rated walls or ceilings shall be protected using intumescent fire
collars and fire-rated caulk. Hilti is the recommended manufacturer of fire stopping products.
There is only one fire rated wall that is scheduled to be penetrated. That is the overhead piping
associated with Suction Point 1-1. Because of the Class A Fire Rating of the room from which
that pipe is exiting, that pipe will be metal and not require a fire collar. Fire rated caulk will be
required at the pipe penetration.
2.12 Sampling Ports
Test ports for manually measuring vacuum and airflow shall be installed in each of the riser
pipes. Ports shall be drilled, taped and plugged using a 3/8-16 x ¾ stainless steel socket cap
screw with a neoprene washer. Soil gas samples may also be collected from these ports.
Permanent sub slab test ports will be installed at various locations throughout the individual
system vacuum fields for the purpose of measuring sub slab vacuum. The vacuum measured at
these permanent ports will have a somewhat linear relationship to the vacuum applied at the
suction holes and measured at the pressure transducer port. The location of these ports shall be
shown on the As-Built drawings.
2.13 System Labeling
A label will be installed at the disconnect switch next to the fan that says “Active Soil
Depressurization System, Do Not Alter.” The electrical circuit at the panel that is used to control
the fan will be labeled as “Active Soil Depressurization System”. All risers and at least every 20
feet of exposed horizontal contaminant vent pipe length will have a label that reads “Active Soil
Depressurization System” attached to the pipe. All labels shall be readable from three feet away.

www.cleanvapor.com
Page 15 of 33
3.0 General Installation Notes
All mitigation system components will be installed to facilitate servicing, maintenance and repair
or replacement of other equipment components in or outside the building. Where mounting
heights are not detailed or dimensions not given, system materials and equipment are to be
installed to provide the maximum headroom or side clearance as is possible. The owner will be
contacted in cases where a conflict exists. All systems, materials and equipment will be installed
level, plumb, parallel or perpendicular to other building systems and components unless
otherwise specified.
Every reasonable precaution shall be made to avoid any damage to existing utilities located
anywhere in the building or those located in or below the slab floor. Detailed blueprints
indicating utility piping in or under the slab are not available. Undocumented sub slab utilities
may alter the scope of work. A metal detecting relay box or another similar instrument should be
used in conjunction with any slab drilling that does not involve wet coring.
All penetrations through the foundation walls and the roof shall be sealed. There will be no
placement of piping or conduit that would inhibit intended use of any areas. No foreign
materials shall be left or drawn into the vapor system piping or fan which might at a later period
interfere with or in any way impair the vapor system performance. The entire system will have
UL or equivalent ratings for both individual components and the entire system as applicable.
4.0 System Materials
I. Vapor Vent Piping
a. Schedule 40 A53 Steel pipe
b. PVC Schedule 40 pipe and fittings ASTM D-2665
i. Hollow Core PVC is not permissible
c. PVC cement clear primer will comply with ASTM F-656
d. PVC cement adhesive will comply with ASTM D-2564
e. 2" and 3" inline PVC slide valves (Valterra Bladex)
II. Piping Supports and Hardware
a. 3" and 4" " Hanging Pipe Supports
b. Adjustable swivel ring or standard bolt type clevis hangers
c. Adjustable band hangers
d. 3/8" threaded rod
e. 1/2" threaded rod
f. Conduit clamps
g. Assorted bolts, nuts & washers
h. 1 5/8" C- Profile Galvanized Unistrut
i. 1 3/16" C- Profile Galvanized Unistrut
III. Vapor Blowers
a. Cincinnati Fan PB-14A (2)
b. Vapor Dynamics IC 4519 (2)

www.cleanvapor.com
Page 16 of 33
IV. Variable Speed Drives
a. Mitsubishi Frequency Inverter F700 (2) (verified per blower with the
manufacturer)
V. Blower Support Frames
a. 1 5/8" C- Profile Galvanized Unistrut
b. Dura Block BlockTM Unistrut supports
VI. Visual Pressure Indicator and Protective Enclosure
a. Dwyer Magnehelic (range to be determined See Detail Sheet 7)
b. Integra Enclosures
VII. Sealing Materials
a. Gun Grade Urethane Caulk (Vulkem 116)
b. Flowable Urethane Caulk (Vulkem 45SSL)
VIII. Remote Monitoring and Dynamic Controls
a. Vapor Guardian 5500 with internal modem (Vapor Dynamics) (2), one with 3G
Modem
IX. Dwyer Magnesense Differential Pressure Transmitters 4 – 20 mili amp Required
a. Dwyer Magnesense MS 121 (4)
b. Dwyer Magnesense MS 151 0" - 25" w.c. 2)
c. Dwyer Magnesense MS 131 0" - 10" w.c. (2)

Note: Hilti is the suggested manufacturer of fastening products and fire collars
5.0 Administrative and Final Report
5.1 Permits
It is the responsibility of the installation contractor to secure any municipal permits. The owner
will need to provide building access for the municipal building inspectors or any other
jurisdictional authority to inspect the relevant components of the SSDS.
5.2 Warranties
The mitigation contractor shall warranty all system components, workmanship, and a sub slab
vacuum level of -0.004" w.c. for a period of one year from the date of system commissioning.
Sub slab vacuum extension values are based on the conditions at the date of the diagnostic
measurements. The client will not incur any cost for warranty work performed during this period.
Fluctuating water tables, sink holes, and other unforeseen sub slab anomalous conditions that
may affect sub slab soil gas channeling after commissioning values have been achieved may be
considered outside of the warranty. Repairing system damage caused by others is not included in
the warranty. Clean Vapor’s warranty does not apply to systems installed by others.

www.cleanvapor.com
Page 17 of 33
5.3 Final Project Report
The pressure field extension beneath the slab created by the SSDS shall be measured with a
digital micro-manometer capable of reading down to 0.0001 inches water column. The slide
valves in the riser pipes shall be adjusted to facilitate maximum vacuum distribution. Static
vacuum measurements for each system will be recorded. All vacuum measurements will be
measured in inches of water column. The exhaust airflow from the blower system shall be
measured, calculated and reported in CFM.
The final report summarizing remedial activities shall include a summary of remedial activities,
As-Built drawings, blower and system performance tables, photo documentation, equipment
warranties and material submittals.
The As-Built drawings will be a modification of the original design print and include the specific
locations of mechanical equipment and conveyance piping. The electrical panel location and
breaker number will also be noted for the blower. The location of all low pressure gauges will
also be on the drawing. The title block will include the final system installation date.
Photo documentation will include at least one picture of the blower installed, the low pressure
panel, system labels, suction points, relevant sealing, fire stopping, post-mitigation vacuum
testing and pictures thought to be important by the owner. Warranties and submittals will
include: blower warranties, performance and wiring information and Material “cut sheets”.
The Operations and Maintenance Section will include a table of items to be checked quarterly
and annually. A copy of the final report will be maintained by Clean Vapor, and the owner.
5.4 Submittals
The mitigation contractor shall provide copies of submittals;
I. Pre Work Submittals
a. Copy of applicable licenses
i. NRPP Radon Mitigation Specialist responsible for the installation of the
system
b. Equipment manufacturer cut sheets
II. Post Work Submittals
a. As-Built drawings to include all applicable mechanical component locations
b. Final project report
c. OM&M instructions and recommendations

www.cleanvapor.com
Page 18 of 33
6.0 Pictures
6.1 Diagnostic Investigation

Coring Primary Diagnostic Suction Hole

Drilling Remote Test Hole

www.cleanvapor.com
Page 19 of 33

Using Speed Control and Applying Vacuum

Measuring Vacuum Field Extension

www.cleanvapor.com
Page 20 of 33

Measuring Airflow

Venting Soil Gas Outside

www.cleanvapor.com
Page 21 of 33

Measuring Indoor to Outdoor

Class A Fire Rated Space

www.cleanvapor.com
Page 22 of 33

Mezzanine Above Office

Warehouse with Vaulted Truss Roof

www.cleanvapor.com
Page 23 of 33

Warehouse Barrel Truss Roof System

THIS SPACE INTENTIONALLY LEFT BLANK

www.cleanvapor.com
Page 24 of 33
6.2 Installation Examples

Sealed Suction Point

Steel Riser Pipe Transitioning to Overhead PVC
Painted by Owner

www.cleanvapor.com
Page 25 of 33

Inline Gate Valve

Roof Mounted Radial Blower

www.cleanvapor.com
Page 26 of 33

Compact Radial Blowers

Testing System Airflow Yields at Start Up

www.cleanvapor.com
Page 27 of 33

Pressure Transducer Well and Embeded Conduit

Top View of Pressure Transducer Probe Well

www.cleanvapor.com
Page 28 of 33

Pressure Transducer and Enclosure

Magnehelic Panel

www.cleanvapor.com
Page 29 of 33

Magnehelic Panel, Vapor Guardian, and VFD’s

Permanent Floor Test Port

www.cleanvapor.com
Page 30 of 33

Test Port and Steel Riser

System Labels

www.cleanvapor.com
Page 31 of 33

Engraved Blower Labels on Blower Frame

Screenshot of Remote Login Terminal

www.cleanvapor.com
Page 32 of 33
Appendix A –Drawings

D
R
A
W
I
N
G

L
I
S
T
C
C
o
v
e
r
1

D
i
a
g
n
o
s
t
i
c

T
e
s
t

H
o
l
e
s
2

S
u
c
t
i
o
n

P
o
i
n
t
s

&

B
l
o
w
e
r
s
3
M
e
c
h
a
n
i
c
a
l

D
e
t
a
i
l
s
A
C
T
I
V
E

S
O
I
L

D
E
P
R
E
S
S
U
R
I
Z
A
T
I
O
N

S
Y
S
T
E
M

F
L
E
M
I
N
G

L
A
B
O
R
A
T
O
R
I
E
S
2
2
1
5

T
H
R
I
F
T

R
O
A
D
C
H
A
R
L
O
T
T
E
,

N
O
R
T
H

C
A
R
O
L
I
N
A

2
8
2
0
8
F
E
B
R
U
A
R
Y

7
,

2
0
1
6
ACTIVE SOIL DEPRESSURIZATION
FLEMING LABORATORIES
2215 THRIFT ROAD
CLEAN VAPOR LLC
P.O. BOX 688, BLAIRSTOWN, NJ 07825
Ph. 908 362- 5616 Fax. [phone]
T
H
O
M
A
S

E
.

H
A
T
T
O
N
N
E
H
A
I
.
D
.

1
0
4
7
0
5
N
J
D
E
P

M
I
S

1
0
2
4
5
1
ACTIVE SOIL DEPRESSURIZATION
FLEMING LABORATORIES
2215 THRIFT ROAD
CLEAN VAPOR LLC
P.O. BOX 688, BLAIRSTOWN, NJ 07825
Ph. 908 362- 5616 Fax. [phone]
T
H
O
M
A
S

E
.

H
A
T
T
O
N
N
E
H
A
I
.
D
.

1
0
4
7
0
5
N
J
D
E
P

M
I
S

1
0
2
4
5
2
ACTIVE SOIL DEPRESSURIZATION
FLEMING LABORATORIES
2215 THRIFT ROAD
CLEAN VAPOR LLC
P.O. BOX 688, BLAIRSTOWN, NJ 07825
Ph. 908 362-5616 Fax. [phone]
T
H
O
M
A
S

E
.

H
A
T
T
O
N
N
E
H
A
I
.
D
.

1
0
4
7
0
5
N
J
D
E
P

M
I
S

1
0
2
4
5
3

www.cleanvapor.com
Page 33 of 33
Appendix B – Equipment Cut Sheets

Page 2
ACFM SP Temp.Altitude Density Fan RPM BHP
550 12.0 in. wg 70°F 0 ft. ASL 0.0729 lb/ft³3450 1.71
Qty Description Unit Price Extended
Price
1 Cincinnati Fan PB-14A, Arrangement 4, 6" Inlet, CW Rotation, UB
Discharge, 14 x 3-1/4
MTR,2 HP,3450 RPM,3PH,60Hz,208-230/460V,TEFC,Prem
Eff,FM,145T, 1.25 SF,F Insul., 40C Amb.,F1 Box,Steel
frame,NOT PREMIUM EFFICIENT ON 208 VOLT,VFD Capable
1000:1 VT
Shaft Seal
Discharge Guard
Allow 10 working days to ship after receipt of order, or release to manufacturing. (Actual lead time
depends upon motor availability.) This order can be expedited for shipment within 5 days for an
additional CQS charge of 15%.
Approximate shipping weight (for complete fan as described above) is 146 pounds (each).
Net 30 Days (upon credit approval). FOB Factory. Freight not included. Please issue PO to
Systech Design Inc. All Cincinnati Fan & Ventilator Company terms and conditions of sale will
apply. When ordering, refer to the Quotation # at the top of this proposal.
Thank you,
Adam Conley
Systech Design Inc
FAN SELECTION
And
PERFORMANCE
Clean Vapor LLC Job Name:
N/AConstruction Class70 1.71Motor Frequency, Hz 60 65.9%Static Efficiency, %AMCA Arrangement No.4 1.71
2,880Outlet Velocity, ft./min.
6.00Inlet Diameter, in.
Wheel Diameter, in.14.00
100%Wheel Width, %70 14 X 3-1/4 RadialWheel Description0.0729
PB-14AModel550
3,450Fan RPM12.0
Fan Selection and SpecificationsOperating Requirements
Volume, ACFM
Static Pressure, in. wg
Density, lb./ft.³
Operating Temperature, °F
Start-Up Temperature, °F Cold Start BHP
Fan BHP Suggested Motor HP:2.0
Cincinnati Fan Selector - © 2013 by Cincinnati Fan and Ventilator Co. All Rights Reserved
CFSWin Version: 8.1.6213.32191 8.4Database Version:
FAN SOUND DATA
Clean Vapor LLC Job Name:
5868727378787463Lp outlet
4757616267676352Lp inlet
5868727378787564Lp Total
7383878893938978Lw Outlet
7383878893938978Lw Inlet
7686909196969281Lw Total
8000Hz4000 Hz2000 Hz1000 Hz500 Hz250Hz125 Hz63 HzQuantity
Fan Outlet Ducting:Not Ducted
Fan Inlet Ducting:Ducted
1 - Spherical radiationSound Directivity Factor, Q :
= A-Weighted decibel. A-weighting corrects the spectrum for human hearing response.dB(A)
= Decibel, ten times the logarithm (base 10) of the ratio of a value to a reference value.dB
= Sound Power Level of the fan. Measured in decibels (dB) or A-weighted decibels (dB(A)) re 1E-12 watt.Lw
decibels (dB(A)) re 0.0002 microbar.
Lp = Sound Pressure Level at a specific distance from the fan. Measured in decibels (dB) or A-weighted
Fan Sound Data
N/AConstruction Class70
1.71Motor Frequency, Hz 60
65.9%Static Efficiency, %AMCA Arrangement No.4
1.71
2,880Outlet Velocity, ft./min.
6.00Inlet Diameter, in.
Wheel Diameter, in.14.00
100%Wheel Width, %70
14 X 3-1/4 RadialWheel Description0.0729
3,450Fan RPM12.0
PB-14AModel550
Fan Selection and SpecificationsOperating Requirements
Calculated Octave Band Sound Data (dB)
Volume, ACFM
Static Pressure, in. wg
Density, lb./ft.³
Operating Temperature, °F
Start-Up Temperature, °F
Fan BHP
Cold Start BHP
97
at 5.080Total A-weighted Sound Pressure Level, Lp dB(A)
Total A-weighted Sound Power Level, Lw dB(A)
460
feet from fan
Blade Passage Frequency, Hz
• Sound Pressure values are calculated based upon assumed environmental conditions. Actual values may
vary for specific installations due to environmental factors (other noise sources, walls, duct design, etc.)
• Sound Pressure Level calculations assume free field propagation occuring outdoors.
• Noise from the driver is not included in these data.
• Duct End Corrections applied (AMCA 300-85 Appendix C).
Cincinnati Fan Selector - © 2013 by Cincinnati Fan and Ventilator Co. All Rights Reserved
CFSWin Version: 8.1.6213.32191 8.4Database Version:

Vapor Dynamics IC 4519
Compact Radial Blower
Backed by 32 Years of Mitigation Experience
Performance
Vapor Dynamics IC 4519
45" WC @ 7% of 190 CFM max flow
capacity
Dynamic or manual speed control to
achieve specified performance ranges
12 month warranty
Design
Compact design 18" x 16" x 10" weighing under 25 lbs
3" Schedule 40 inlet and exhaust
UL listed components and enclosure for outside use
Internal condensate bypass
Motor designed to convey combustion gases
Dynamic or manual speed control
Quick connect couplers to facilitate ease of changing motors
Accepts 120-240 voltage without alteration
www.vapordynamics.com  [phone]
Performance Chart
Static Vacuum 0" 10" 20" 30" 37" Wattage
Airflow 220V 197 162 130 89 50 800-1100
COMPLETE UNIT $ 1,390.00
3 YEAR WARRANTY $ 425.00
Cost
Page 1 of 2

Vapor Dynamics IC 4519
Compact Radial Blower
Specifications Continued
Enclosure Specifications
Blower Specifications
www.vapordynamics.com  [phone] Page 2 of 2
DURA-BLOK is made from 100% recycled rubber and qualifies for LEED credits. Reflective strips on both sides
allow for easy product visibility.
Channels are through bolted on all sizes for added strength and a 1” (25.4mm)gap between blocks allows water to
flow freely around longer assemblies.
Product composition is not sharp or abrasive, helping to extend the roof life and no penetration through the roof is
required.
The DURA-BLOK dampens vibration, needs no supplemental rubber pad, and will not float or blow away.
DURA-BLOK can be used to support piping, HVAC/Ducts, roof walkways, conduit and cable tray.
D
U
R
A
-
B
L
O
K
R
o
o
f
t
o
p

S
u
p
p
o
r
t
s
All dimensions in charts and on drawings are in inches. Dimensions shown in parentheses are in millimeters unless otherwise specified.
DURA-BLOK™Rooftop Supports
Pipe Hangers & Supports273
DU
R
A
-
B
L
O
K
Ro
o
f
t
o
p

S
u
p
p
o
r
t
s
Base Only
Dimensions - 4” (101mm)High x 6” (152mm)Wide x Base Length
Material - 100% recycled rubber, UV resistant
Ultimate Load Capacity - (uniform load) *
DBP = 500 lbs. (2.22kN)
DBM = 200 lbs. (0.89kN)
DURA-BLOK channel support is designed as an economical support for piping systems, cable tray, HVAC
equipment and many other applications. The DURA-BLOK is UV resistant and is suitable for any type of
roofing material or other flat surfaces. Material effectively accepts screw fasteners for securing accessories.
Base Only
Part No.Weight Each
DBP 4.48 (2.03kg)
DBM 2.35 (1.07kg)
Part No.Height Width Length
DBP 4” (101mm)6” (152mm)9.6” (244mm)
DBM 4” (101mm)6” (152mm)4.8” (122mm)
DBP DBM
* For Roof Loading, Consult Roofing Manufacturer or Engineer. As with most commercial roofs,
the weakest point may be the insulation board beneath the rubber membrane.
All dimensions in charts and on drawings are in inches. Dimensions shown in parentheses are in millimeters unless otherwise specified.
DURA-BLOK™Rooftop Supports
274Pipe Hangers & Supports
Base with 14 ga. (1.9mm)Galv. Channel - 1” (25.4mm)high
Dimensions - 5” (127mm)High x 6” (152mm)Wide x Length (overall length)
Material - 100% recycled rubber, UV resistant
Ultimate Load Capacity -(uniform load) *
DB5 = 500 lbs. (2.22kN)
DB10 = 500 lbs. (2.22kN)
DB20 = 1,000 lbs. (4.45kN)
DB30 = 1,500 lbs. (6,67kN)
DB40 = 2,000 lbs. (8.89kN)
DB48 = 2,500 lbs. (11.12kN)
DURA-BLOK DB-Series channel support is designed for superior support of piping systems, cable tray, HVAC equipment,
walkway systems and many other applications. The DURA-BLOK is UV resistant and suitable for installation on any type of
roofing material or other flat surfaces. For sloped roofs see adjustable hinge fitting (B634).
DB - Series
For pipe straps/clamps, rollers and roller supports that can be used with these DURA-BLOK supports, see page 284.
Part No.Weight Each
DB5 2.75 (1.25kg)
DB10 5.28 (2.39kg)
DB20 10.63 (4.82kg)
DB30 15.99 (7.25kg)
DB40 21.34 (9.68kg)
DB48 26.70 (12.4kg)
Part No.Height Width Overall Length
DB5 5” (127mm)6” (152mm)4.8” (122mm)
DB10 5” (127mm)6” (152mm)9.6” (244mm)
DB20 5” (127mm)6” (152mm)20.2” (513mm)
DB30 5” (127mm)6” (152mm)30.8” (782mm)
DB40 5” (127mm)6” (152mm)41.4” (1052mm)
DB48 5” (127mm)6” (152mm)52.0” (1321mm)
DB10
DB20
DB5
* For Roof Loading, Consult Roofing Manufacturer or Engineer. As with most commercial roofs,
the weakest point may be the insulation board beneath the rubber membrane.
DB30
D
U
R
A
-
B
L
O
K
R
o
o
f
t
o
p

S
u
p
p
o
r
t
s
All dimensions in charts and on drawings are in inches. Dimensions shown in parentheses are in millimeters unless otherwise specified.
DURA-BLOK™Rooftop Supports
Pipe Hangers & Supports275
DU
R
A
-
B
L
O
K
Ro
o
f
t
o
p

S
u
p
p
o
r
t
s
DB6 - Series
Part No.Height Width Overall Length
DB610 67/16” (167mm)6” (152mm)9.6” (244mm)
DB620 67/16” (167mm)6” (152mm)20.2” (513mm)
DB630 67/16” (167mm)6” (152mm)30.8” (782mm)
DB640 67/16” (167mm)6” (152mm)41.4” (1052mm)
DB648 67/16” (167mm)6” (152mm)52.0” (1321mm)
Part No.Weight Each
DB610 6.36 (2.88kg)
DB620 12.90 (5.85kg)
DB630 19.45 (8.82kg)
DB640 26.00 (11.79kg)
DB648 32.55 (14.76kg)
DB610
DB630
Base with 12 ga. (2.6mm)Galv. Channel - 27/16” (62mm)high
Dimensions - 67/16” (163mm)High x 6” (152mm)Wide x Length (overall length)
Material - 100% recycled rubber, UV resistant
Ultimate Load Capacity -(uniform load) *
DB610 = 500 lbs. (2.22kN)
DB620 = 1,000 lbs. (4.45kN)
DB630 = 1,500 lbs. (6.67kN)
DB640 = 2,000 lbs. (8.89kN)
DB648 = 2,500 lbs. (11.12kN)
DURA-BLOK DB6-Series channel support is designed for superior support of piping systems, cable tray, HVAC equipment,
walkway systems and many other applications. The DURA-BLOK is UV resistant and suitable for installation on any type of
roofing material or other flat surfaces. For sloped roofs see adjustable hinge fitting (B634).
* For Roof Loading, Consult Roofing Manufacturer or Engineer. As with most commercial roofs,
the weakest point may be the insulation board beneath the rubber membrane.
For pipe straps/clamps, rollers and roller supports that can be used with these DURA-BLOK supports, see page 284.
DB620
All dimensions in charts and on drawings are in inches. Dimensions shown in parentheses are in millimeters unless otherwise specified.
DURA-BLOK™Rooftop Supports
276Pipe Hangers & Supports
D
U
R
A
-
B
L
O
K
R
o
o
f
t
o
p

S
u
p
p
o
r
t
s
DB10 - Series
Part No.Weight Each
DB10-28 13.16 (5.97kg)
DB10-36 14.36 (6.51kg)
DB10-42 15.52 (7.04kg)
DB10-50 16.45 (7.46kg)
DB10-60 17.94 (8.14kg)
Part No.Height Individual Base Length Bridge Length
DB10-28 55/8” (143mm)9.6” (244mm)28” (711mm)
DB10-36 55/8” (143mm)9.6” (244mm)36” (914mm)
DB10-42 55/8” (143mm)9.6” (244mm)42” (1067mm)
DB10-50 55/8” (143mm)9.6” (244mm)50” (1270mm)
DB10-60 55/8” (143mm)9.6” (244mm)60” (1524mm)
DB10-36
DB10-50
* For Roof Loading, Consult Roofing Manufacturer or Engineer. As with most commercial roofs,
the weakest point may be the insulation board beneath the rubber membrane.
Two (2) Bases with 12 ga. (2.6mm)Galv. Channel - 15/8” (41mm)high
Dimensions - 55/8” (143mm)High x 6” (152mm)Wide x Length (overall length)
Material - 100% recycled rubber, UV resistant
Ultimate Load Capacity -1,000 lbs. (4.45kN)(uniform load) *
DURA-BLOK DB10-Series channel support is designed for superior support of piping systems, cable tray, HVAC
equipment, walkway systems and many other applications. The DURA-BLOK is UV resistant and suitable for installation
on any type of roofing material or other flat surfaces.
For pipe straps/clamps, rollers and roller supports that can be used with these DURA-BLOK supports, see page 284.
All dimensions in charts and on drawings are in inches. Dimensions shown in parentheses are in millimeters unless otherwise specified.
DURA-BLOK™Rooftop Supports
Pipe Hangers & Supports277
DU
R
A
-
B
L
O
K
Ro
o
f
t
o
p

S
u
p
p
o
r
t
s
* For Roof Loading, Consult Roofing Manufacturer or Engineer. As with most commercial roofs,
the weakest point may be the insulation board beneath the rubber membrane.
DBM - Series
DBM-2CT
DBM-1
Base with one (1) 3/8”-16 Electro Zinc All
Threaded Rod and Hinged Pipe Clamp
Dimensions - Height to Pipe Center x 6” (152mm)Wide x
4.8” (122mm)Long (overall length)
Material - 100% recycled rubber, UV resistant
Pipe Clamp Material - Malleable Iron -
Pipe Sizes - Electro Plated
Copper Tubing Sizes - Dura Copper™
Threaded Rod/Hardware - Electro Plated Steel
Ultimate Load Capacity -50 lbs. (0.22kN)(uniform load) *
DURA-BLOK DBM-Series pipe/tubing support is designed for support of single piping
systems where elevation adjustment is needed. The DURA-BLOK is UV resistant and
suitable for installation on any type of roofing material or other flat surfaces.
Part No. Height (Minimum) ** Height (Maximum) ** Width Length
DBM-1/2CT 9.69” (246mm)11.19” (284mm)6” (152mm)4.80” (122mm)
DBM-3/4CT 9.84” (250mm)11.34” (288mm)6” (152mm)4.80” (122mm)
DBM-1CT 9.95” (253mm)11.45” (291mm)6” (152mm)4.80” (122mm)
DBM-11/4CT 10.13” (257mm)11.63” (295mm)6” (152mm)4.80” (122mm)
DBM-11/2CT 10.28” (261mm)11.78” (299mm)6” (152mm)4.80” (122mm)
DBM-2CT 10.53” (267mm)12.03” (305mm)6” (152mm)4.80” (122mm)
DBM-1/2 9.86” (250mm)11.36” (288mm)6” (152mm)4.80” (122mm)
DBM-3/4 10.06” (255mm)11.56” (293mm)6” (152mm)4.80” (122mm)
DBM-1 10.14” (257mm)11.64 (296mm) 6” (152mm)4.80” (122mm)
DBM-11/4 10.25” (260mm)11.75” (298mm)6” (152mm)4.80” (122mm)
DBM-11/2 10.42” (265mm)11.92” (303mm)6” (152mm)4.80” (122mm)
DBM-2 10.66” (271mm)12.16” (309mm)6” (152mm)4.80” (122mm)
† See Pipe Hanger Catalog for dimensions and specifications. ** From bottom of rubber block to center of pipe/tubing.
Part No. Clamp Part No.
†Weight Each
DBM-1/2CT B3198HCT-
1/2 2.75 (1.25kg)
DBM-3/4CT B3198HCT-
3/4 2.76 (1.25kg)
DBM-1CT B3198HCT-1 2.84 (1.29kg)
DBM-11/4CT B3198HCT-1
1/2 2.95 (1.34kg)
DBM-11/2CT B3198HCT-1
1/2 2.96 (1.34kg)
DBM-2CT B3198HCT-2 3.03 (1.37kg)
DBM-1/2 B3198H-1/2 2.78 (1.26kg)
DBM-3/4 B3198H-3/4 2.84 (1.29kg)
DBM-1 B3198H-1 2.86 (1.30kg)
DBM-11/4 B3198H-11/4 2.93 (1.33kg)
DBM-11/2 B3198H-11/2 2.99 (1.36kg)
DBM-2 B3198H-2 3.10 (1.41kg)
All dimensions in charts and on drawings are in inches. Dimensions shown in parentheses are in millimeters unless otherwise specified.
DURA-BLOK™Rooftop Supports
278Pipe Hangers & Supports
D
U
R
A
-
B
L
O
K
R
o
o
f
t
o
p

S
u
p
p
o
r
t
s
DB_DS - Series
DB2318DS
DB2924DS
DB5336DS
* For Roof Loading, Consult Roofing Manufacturer or Engineer. As with most commercial roofs,
the weakest point may be the insulation board beneath the rubber membrane.
For pipe straps/clamps, rollers and roller supports that can be used with these DURA-BLOK supports, see page 284.
Two (2) Base Supports with 12 ga. (2.6mm)Galv. Channel - 15/8” (41mm)high
Riser Channels (SH Style) - 15/8” (41mm)x 15/8” (41mm)x 12 ga. (2.6mm)
Fittings & Hardware - Electro-Plated Steel
Dimensions - Height (overall) x Width (overall) x Length (overall)
Material - 100% recycled rubber, UV resistant
Ultimate Load Capacity -1,000 lbs. (4.45kN)(uniform load) *
DURA-BLOK DB__DS-Series channel support with risers is designed for superior support of piping systems, cable tray, HVAC
equipment, walkway systems and many other applications. The DURA-BLOK is UV resistant and suitable for installation on any
type of roofing material or other flat surfaces.
Length
(overall)Width
(overall)
Height
(overall)
B
B + 4.5” (114mm)
A
Product is shipped unassembled.
All dimensions in charts and on drawings are in inches. Dimensions shown in parentheses are in millimeters unless otherwise specified.
DURA-BLOK™Rooftop Supports
Pipe Hangers & Supports279
DU
R
A
-
B
L
O
K
Ro
o
f
t
o
p

S
u
p
p
o
r
t
s
DB__DS - Series cont.
Part No.Height (overall) Width (overall) Length (overall)
DB2318DS 23” (584mm)255/8” (651mm)20.2” (513mm)
DB2918DS 29” (736mm)255/8” (651mm)20.2” (513mm)
DB4118DS 41” (1041mm)255/8” (651mm)20.2” (513mm)
DB5318DS 53” (1346mm)255/8” (651mm)20.2” (513mm)
DB2324DS 23” (584mm)315/8” (803mm)20.2” (513mm)
DB2924DS 29” (736mm)315/8” (803mm)20.2” (513mm)
DB4124DS 41” (1041mm)315/8” (803mm)20.2” (513mm)
DB5324DS 53” (1346mm)315/8” (803mm)20.2” (513mm)
DB2336DS 23” (584mm)435/8” (1108mm)20.2” (513mm)
DB2936DS 29” (736mm)435/8” (1108mm)20.2” (513mm)
DB4136DS 41” (1041mm)435/8” (1108mm)20.2” (513mm)
DB5336DS 53” (1346mm)435/8” (1108mm)20.2” (513mm)
DB2348DS 23” (584mm)555/8” (1415mm)20.2” (513mm)
DB2948DS 29” (736mm)555/8” (1415mm)20.2” (513mm)
DB4148DS 41” (1041mm)555/8” (1415mm)20.2” (513mm)
DB5348DS 53” (1346mm)555/8” (1415mm)20.2” (513mm)
A = Adjustable height from bottom of DURA-BLOK to top of horizontal channel.
B = Space between fittings that support horizontal channel.
Height (overall) = Distance from bottom of DURA-BLOK to top of upright channel.
Width (overall) = Distance from outside-to-outside of DURA-BLOK supports.
Length (overall) = Distance from end-to-end of DURA-BLOK supports.
Part No. A (Minimum) A (Maximum)B Weight Each
DB2318DS 10.56” (268mm)20.75” (527mm)13.50” (343mm)33.31 (15.11kg)
DB2918DS 10.56” (268mm)26.75” (679mm)13.50” (343mm)35.00 (15.88kg)
DB4118DS 10.56” (268mm)38.75” (984mm)13.50” (343mm)38.40 (17.42kg)
DB5318DS 10.56” (268mm)50.75” (1289mm)13.50” (343mm)41.80 (18.96kg)
DB2324DS 10.56” (268mm)20.75” (527mm)19.50” (495mm)34.15 (15.49kg)
DB2924DS 10.56” (268mm)26.75” (679mm)19.50” (495mm)35.84 (16.26kg)
DB4124DS 10.56” (268mm)38.75” (984mm)19.50” (495mm)39.25 (17.80kg)
DB5324DS 10.56” (268mm)50.75” (1289mm)19.50” (495mm)42.65 (19.34kg)
DB2336DS 10.56” (268mm)20.75” (527mm)31.50” (800mm)35.84 (16.26kg)
DB2936DS 10.56” (268mm)26.75” (679mm)31.50” (800mm)37.55 (17.03kg)
DB4136DS 10.56” (268mm)38.75” (984mm)31.50” (800mm)40.95 (18.57kg)
DB5336DS 10.56” (268mm)50.75” (1289mm)31.50” (800mm)44.34 (20.11kg)
DB2348DS 10.56” (268mm)20.75” (527mm)43.50” (1105mm)37.55 (17.03kg)
DB2948DS 10.56” (268mm)26.75” (679mm)43.50” (1105mm)39.25 (17.80kg)
DB4148DS 10.56” (268mm)38.75” (984mm)43.50” (1105mm)42.65 (19.34kg)
DB5348DS 10.56” (268mm)50.75” (1289mm)43.50” (1105mm)46.03 (20.88kg)
All dimensions in charts and on drawings are in inches. Dimensions shown in parentheses are in millimeters unless otherwise specified.
DURA-BLOK™Rooftop Supports
280Pipe Hangers & Supports
D
U
R
A
-
B
L
O
K
R
o
o
f
t
o
p

S
u
p
p
o
r
t
s
* For Roof Loading, Consult Roofing Manufacturer or Engineer. As with most commercial roofs,
the weakest point may be the insulation board beneath the rubber membrane.
DBR - Series
Fixed Height
DBR4-6
Base with 14 ga. (1.9mm)Galv. Channel - 1” (25.4mm)high and Pipe
Roller Assembly
Dimensions - Height to Bottom of Pipe x 6” (152mm)Wide x
Long (overall length)
Material - 100% recycled rubber, UV resistant
Pipe Roller Material - Cast Iron - Electro Plated
Brackets, Axle, & Hardware - Electro Plated Steel
Ultimate Load Capacity -(uniform load) *
DBR2-31/2 = 500 lbs. (2.22kN)
DBR4-6 = 500 lbs. (2.22kN)
DBR8-10 = 1000 lbs. (4.44kN)
DBR12-14 = 1000 lbs. (4.44kN)
DBR16-20 = 1000 lbs. (4.44kN)
DURA-BLOK DBR-Series support is designed to support pipe where
longitudinal movement is expected. The DURA-BLOK is UV resistant and
approved for installation on any type of roofing material or other flat surfaces.
Part No.Height **Width Length
DBR2-31/2 7.09” (180mm)6” (152mm)9.6” (244mm)
DBR4-6 7.09” (180mm)6” (152mm)9.6” (244mm)
DBR8-10 8.34” (212mm)6” (152mm)20.2” (513mm)
DBR12-14 9.38” (238mm)6” (152mm)20.2” (513mm)
DBR16-20 9.78” (248mm)6” (152mm)20.2” (513mm)
† See Pipe Hanger Catalog for dimensions and specifications. ** From bottom of rubber block to bottom of pipe/tubing.
DBR16-20
Part No. Roller Part No.
†Weight Each
DBR2-31/2 B3126-2 to 31/2 5.28 (2.39kg)
DBR4-6 B3126-4 to 6 10.63 (4.82kg)
DBR8-10 B3126-8 to 10 15.99 (7.25kg)
DBR12-14 B3126-12 to 14 21.34 (9.68kg)
DBR16-20 B3126-16 to 20 26.70 (12.11kg)
All dimensions in charts and on drawings are in inches. Dimensions shown in parentheses are in millimeters unless otherwise specified.
DURA-BLOK™Rooftop Supports
Pipe Hangers & Supports281
DU
R
A
-
B
L
O
K
Ro
o
f
t
o
p

S
u
p
p
o
r
t
s
Base with two (2) 1/2”-13 Electro Zinc All
Threaded Rod Risers and 14 ga. (1.9mm)Galv.
Slotted Channel - 1” (25mm)high
Dimensions - Overall Height as Specified
Base - 4” High (101mm)x 6” (152mm)Wide x 9.6” (244mm)Length (base length)
Material - 100% recycled rubber, UV resistant
Ultimate Load Capacity - 200 lbs. (0.89kN)* (To increase load capacity
use CLDP10 load distribution plate.)
DURA-BLOK DBE-Series channel support is designed as a support of piping
systems, cable tray, HVAC equipment and many other applications where elevation
adjustment is critical. The DURA-BLOK is UV resistant and suitable for installation
on any type of roofing material or other flat surfaces.
For pipe straps/clamps, rollers and roller supports that can be used with these DURA-BLOK
supports, see page 284.
DBE - Series
** Longer base lengths available.
Note: At heights above 12” (305mm), we suggest using the DB_DS Series Channel Support with Risers for
additional stability to piping system.
DBE10-12
Base with two (2) 1/2”-13 Electro Zinc All
Threaded Rod Risers and a B3114-31/2 Pipe Roll with Sockets
Dimensions - Overall Height 12” (305mm)from bottom of base to pipe contact
point on roller.
Base - 4” High (101mm)x 6” (152mm)Wide x 9.6” (244mm)Length (base length)
Material - 100% recycled rubber, UV resistant
Pipe Roll & Sockets - For up to 31/2” (90mm)pipe sizes.
Ultimate Load Capacity - 200 lbs. (0.89kN)* (To
increase load capacity use CLDP10 load distribution plate.)
DURA-BLOK DBR-Series support is designed to support pipe up to 31/2” (90mm)
nominal size where difference in elevation is required and longitudinal movement is
expected. The DURA-BLOK is UV resistant and approved for installation on any type
of roofing material or other flat surfaces.
DBR - Series
Adjustable Height
* For Roof Loading, Consult Roofing Manufacturer or Engineer. As with most commercial roofs,
the weakest point may be the insulation board beneath the rubber membrane.
Part No. Adjustable Height Width Length Weight Each
DBR10-12 up to 12” (305mm)6” (152mm)9.6” (244mm)6.46 (2.93kg)
Part No. Adjustable Height Width Channel Length Weight Each
DBE10-8 51/2” - 8” (140 - 203mm)6” (152mm)9.35” (161mm)5.68 (2.58kg)
DBE10-12 51/2” - 12” (140 - 305mm)6” (152mm)9.35” (161mm)5.72 (2.59kg)
DBE10-16 51/2” - 16” (140 - 406mm)6” (152mm)9.35” (161mm)5.76 (2.61kg)
All dimensions in charts and on drawings are in inches. Dimensions shown in parentheses are in millimeters unless otherwise specified.
DURA-BLOK™Rooftop Supports
282Pipe Hangers & Supports
D
U
R
A
-
B
L
O
K
R
o
o
f
t
o
p

S
u
p
p
o
r
t
s
Part No.Weight Each
CLDP10 0.53 (0.24kg)
Part No.Thickness Width Length
CLDP10 11 Ga. (3.05mm)15/8” (41mm)91/2” (241mm)
Steel Plate with Slots
Dimensions - 15/8” (41mm)Wide x 61/2” (165mm)Long
Material - 11 Ga. steel (3.0mm)
Increases ultimate uniform load capacity on DBE & DBR Series supports to 500
lbs. (2.22kN)
DURA-BLOK CLDP10 load bearing stabilizer plate increases load ratings for DBE
Series and DBR Series supports by allowing the load from the threaded rods to be
distributed over the length of the base instead of the point load where the rods
attach to the base.
CLDP10
Load Distribution Plate
Loosen hex nuts and slide
plate under the flat washers
Retighten the hex nuts with
plate in place
All dimensions in charts and on drawings are in inches. Dimensions shown in parentheses are in millimeters unless otherwise specified.
DURA-BLOK™Rooftop Supports
Pipe Hangers & Supports283
DU
R
A
-
B
L
O
K
Ro
o
f
t
o
p

S
u
p
p
o
r
t
s
Above rollers can be mounted on DB Series, DB6 Series, and DB10 Series units.
B3126 Series
B-LINEB-LINEBVP150BVP150
1 1/2” I.P1

1
/
2
”

I
.
P
..
BVT Series B2400
Series
B218
B101
BTS
B22SH
B634
B22THTN Nuts
HHCS
B104
B219 SeriesB379 B479
B2000 Series
Compatible Components Available to make DURA-BLOK bases more versatile
B3124
Series
All dimensions in charts and on drawings are in inches. Dimensions shown in parentheses are in millimeters unless otherwise specified.
DURA-BLOK™Rooftop Supports
284Pipe Hangers & Supports
Di
f
f
e
r
e
n
t
i
a
l

P
r
e
s
s
u
r
e

G
a
g
e
s
PR
E
S
S
U
R
E
DWYER INSTRUMENTS, INC.| www.dwyer-inst.com4
Series
2000 Magnehelic®Differential Pressure Gages
Indicate Positive, Negative or Differential, Accurate within 2%RoHS
Select the Dwyer®Magnehelic®gage for high accuracy — guaranteed within 2% of
full-scale — and for the wide choice of 81 models available to suit your needs precisely. Using
Dwyer's simple, frictionless Magnehelic®gage movement, it quicklyindicates low air or non-
corrosive gas pressures — either positive, negative (vacuum) or differential. The design
resists shock, vibration and over-pressures. No manometer fluid to evaporate, freeze or
cause toxic or leveling problems. It's inexpensive, too.
The Magnehelic®gage is the industry standard to measure fan and blower pressures,
filter resistance, air velocity, furnace draft, pressure drop across orifice plates, liquid
levels with bubbler systems and pressures in fluid amplifier or fluidic systems. It also
checks gas-air ratio controls and automatic valves, and monitors blood and respiratory
pressures in medical care equipment.
Mounting
A single case size is used for most models of Magnehelic®gages. They can be flush
or surface mounted with standard hardware supplied. Although calibrated for vertical
position, many ranges above 1˝ may be used at any angle by simply re-zeroing.
However, for maximum accuracy, they must be calibrated in the same position in
which they are used. These characteristics make Magnehelic®gages ideal for both
stationary and portable applications. A 4-9/16˝ hole is required for flush panel
mounting. Complete mounting and connection fittings, plus instructions, are
furnished with each instrument. See page 7 for more information on mounting
accessories.
SPECIFICATIONS
Service: Air and non-combustible, compatible gases (natural gas option available).
Note:May be used with hydrogen. Order a Buna-N diaphragm. Pressures must be
less than 35 psi.
Wetted Materials:Consult factory.
Housing: Die cast aluminum case and bezel, with acrylic cover. Exterior finish is
coated gray to withstand 168 hour salt spray corrosion test.
Accuracy: ±2% of FS (±3% on - 0, -100 Pa, -125 Pa, 10MM and ±4% on - 00, -60
Pa, -6MM ranges), throughout range at 70°F (21.1°C).
Pressure Limits: -20 in Hg to 15 psig† (-0.677 to 1.034 bar); MP option: 35 psig
(2.41 bar); HP option: 80 psig (5.52 bar).
Overpressure: Relief plug opens at approximately 25 psig (1.72 bar), standard
gages only. See Overpressure Protection Note on next page.
Temperature Limits: 20 to 140°F* (-6.67 to 60°C). -20°F (-28°C) with low
temperature option.
Size: 4˝ (101.6 mm) diameter dial face.
Mounting Orientation: Diaphragm in vertical position. Consult factory for other
position orientations.
Process Connections: 1/8˝ female NPT duplicate high and low pressure taps -
one pair side and one pair back.
Weight: 1 lb 2 oz (510 g), MP & HP 2 lb 2 oz (963 g).
Standard Accessories: Two 1/8˝ NPT plugs for duplicate pressure taps, two 1/8˝
pipe thread to rubber tubing adapter, and three flush mounting adapters with
screws. (Mounting and snap ring retainer substituted for three adapters in MP &
HP gage accessories.)
Agency Approval:RoHS. Note: -SP models not RoHS approved.
1/8 FEMALE NPTHIGH PRESSURECONNECTION
1-3/4(44.45)
1/2(12.70)
1/8 FEMALENPT LOWPRESSURE CONNECTION
11/16(17.46)
17/32(13.49)ø4-3/4 (120.65) PANEL CUTOUT
ø5(127)
ø4-47/64(120.27)
3/16
(4.76)2-17/32(64.29)
15/32(11.91)
ø4-1/2(114.3)
1-1/4(31.75)
ø5-1/2(139.70)
MOUNTING RING
RUBBER PRESSURE RELIEF PLUG WILL UNSEAT ITSELFWHEN GAGE ISOVERPRESSURIZED
(3) 6-32 X 3/16 (4.76) DEEP HOLESEQUALLY SPACED ON A Ø4-1/8
(104.78) BOLT CIRCLE FORPANEL MOUNTING
1/8 FEMALE NPTHIGH PRESSURE CONNECTION
1-3/4(44.45)
1/2(12.70)
1/8 FEMALE NPTLOW PRESSURECONNECTION
11/16(17.46)
15/32(11.91)
1-11/16
(42.86)
Ø4-1/2(114.3)
1-1/4(31.75)
17/32(13.49)
.025 (.64) SPACE CREATED BY 3SPACER PADS WHEN SURFACE
MOUNTED. DO NOT OBSTRUCT. PROVIDES PATH FOR RELIEF OF
OVERPRESSURE.
1/8 FEMALENPT HIGH PRESSURECONNECTION
1/8 FEMALENPT LOW PRESSURECONNECTION
7/16(11.11)
Ø4-3/4
(120.65)
Flush, Surface or Pipe Mounted
Enclosure Mounted
ACCESSORIES
†For applications with high cycle rate within gage total pressure rating, next higher rating
is recommended. See Medium and High pressure options at lower left.
A-605B Air Filter Gage Accessory Kit, Air filter kit with two plastic open/close
valves, two 4˝ steel static tips, plastic tubing and mounting flange
A-605C Air Filter Gage Accessory Kit, Air filter kit with two plastic open/close
valves, two plastic static tips, plastic tubing and mounting flange
Model A-432 Portable Kit
Combine carrying case with any Magnehelic®gage of
standard range, except high pressure connection.
Includes 9 ft (2.7 m) of 3/16˝ ID rubber tubing,
standhang bracket and terminal tube with holder.
Model A-605 Air Filter Gage Accessory Kit
Adapts any standard Magnehelic®gage for use as an
air filter gage. Includes aluminum surface mounting
bracket with screws, two 5 ft (1.5 m) lengths of 1/4˝
aluminum tubing two static pressure tips and two
molded plastic vent valves, integral compression
fittings on both tips and valves.
004_Layout 2 7/12/13 11:17 AM Page 4
D
i
f
f
e
r
e
n
t
i
a
l

P
r
e
s
s
u
r
e

G
a
g
e
s
P
R
E
S
S
U
R
E
5
Series
2000 Magnehelic®Gage Models & Ranges
Dual Scale Air Velocity Units
For use with pitot tube
Zero Center Ranges
2300-6MM†••2300-10MM†•2300-20MM†•
Model 2000-00AV†••
2000-0AV†•
2001AV
2002AV
2005AV
2010AV
Model
2000-60NPA†••2000-60PA†••
2000-100PA†•2000-125PA†•
2000-250PA2000-300PA
2000-500PA2000-750PA
2000-1000PA
Model 2000-6MM†••2000-10MM†•2000-15MM2000-25MM2000-30MM2000-50MM2000-80MM2000-100MM2000-125MM2000-150MM2000-200MM2000-250MM2000-300MM
Model2000-0.5KPA2000-1KPA2000-1.5KPA2000-2KPA2000-2.5KPA2000-3KPA2000-4KPA2000-5KPA2000-8KPA2000-10KPA2000-15KPA2000-20KPA2000-25KPA2000-30KPA
2300-1KPA2300-2KPA2300-2.5KPA2300-3KPA
Model2300-60PA†••2300-100PA†•2300-120PA2300-200PA2300-250PA2300-300PA2300-500PA2300-1000PA
Dual Scale English/Metric Models
Model 2000-00D†••2000-0D†•2001D2002D2003D2004D2005D2006D2008D2010D2015D2020D2025D2050D2060D
Range,in w.c.0-.250-0.50-1.00-2.00-3.00-4.00-5.00-6.00-8.00-100-150-200-250-500-60
Zero Center Ranges
Zero Center Ranges
2300-00†••2300-0†•
23012302
23042310
23202330
Model
220122022203220422052210*2215*2220*2230**
Model2000-15CM2000-20CM2000-25CM2000-50CM2000-80CM2000-100CM2000-150CM2000-200CM 2000-250CM2000-300CM
2300-4CM
2300-10CM2300-30CM
Model 2000-00N†••2000-00†••2000-0†•2001200220032004200520062008201020122015202020252030204020502060208021002120215021602180*
2250*
†These ranges calibrated
for vertical scale position.
• Accuracy +/-3%
• • Accuracy +/-4%*MP option standard
**HP option standard
Zero Center Ranges
Zero Center Ranges
O-ring seal for cover assures pressure integrity of case.
OVERPRESSURE PROTECTIONBlowout plug is comprised of a rubber plug on the rear whichfunctions as a relief valve by unseating and venting the gageinterior when over pressure reaches approximately 25 psig (1.7bar). To provide a free path for pressure relief, there are fourspacer pads which maintain 0.023˝ clearance when gage issurface mounted. Do not obstruct the gap created by these pads.The blowout plug is not used on models above 180˝ of waterpressure, medium or high pressure models, or on gages whichrequire an elastomer other than silicone for the diaphragm.The blowout plug should not be used as a system overpressurecontrol. High supply pressures may still cause the gage to fail dueto over pressurization, resulting in property damage or seriousinjury. Good engineering practices should be utilized to preventyour system from exceeding the ratings or any component.
Die cast aluminum case is precision made and iridite-dipped towithstand 168 hour salt spray corrosion test. Exterior finished inbaked dark gray hammerloid. One case size is used for allstandard pressure options, and for both surface and flushmounting.
Silicone rubber diaphragm with integrally molded O-ring issupported by front and rear plates. It is locked and sealed inposition with a sealing plate and retaining ring. Diaphragm motionis restricted to prevent damage due to overpressures.
Samarium Cobalt magnet mounted at one end of range springrotates helix without mechanical linkages.
Bezel provides flange for flush mounting in panel.
Clear plastic face is highly resistant to breakage. Providesundistorted viewing of pointer and scale.
Precision litho-printed scale is accurate and easy to read.
Red tipped pointerof heat treated aluminum tubing is easyto see. It is rigidly mounted on the helix shaft.
Pointer stops of molded rubber prevent pointer over-travelwithout damage.
“Wishbone” assembly provides mounting for helix, helixbearings and pointer shaft.
Jeweled bearings are shock-resistant mounted;providevirtually friction-free motion for helix. Motion damped with high viscosity silicone fluid.
Zero adjustment screw is conveniently located in the plastic cover, and is accessible without removing cover. O-ring seal provides pressure tightness.
Helix is precision made from an alloy of high magnetic permeability. Mounted in jeweled bearings, it turns freely, following the magnetic field to move the pointer across the scale.
Calibrated range spring is flat spring steel. Small amplitude of motion assures consistency and long life. It reacts to pressure on diaphragm. Live length adjustable for calibration.
VELOCITY AND VOLUMETRIC FLOW UNITS
Scales are available on the Magnehelic®that read in velocity units (FPM, m/s) or volumetric flow units (SCFM, m3/s, m3/h). Stocked velocity units with dual range scales in inches
w.c. and feet per minute are shown above. For other ranges contact the factory.
When ordering volumetric flow scales please specify the maximum flow rate and its corresponding pressure. Example: 0.5 in w.c. = 16,000 CFM.
CONTACT US | U.S. 219/879-8000 | U.K. (+44) (0)1494-461707 | A.U. (+61) (0) 2 4272 2055 | China [phone]
Range in W.C./Velocity F.P.M.0-.25/300-2000
0-.50/500-2800
0-1.0/500-4000
0-2.0/1000-5600
0-5.0/2000-8800
0-10/2000-12500
.5-0-.51-0-11.25-0-1.251.5-0-1.5
Range,kPa0-0.5 0-10-1.50-20-2.50-30-40-50-80-100-150-200-250-30
Range,Pa or kPa0-62 Pa0-125 Pa0-250 Pa0-500 Pa0-750 Pa0-1.0 kPa0-1.25 kPa0-1.5 kPa0-2.0 kPa0-2.5 kPa0-3.7 kPa0-5 kPa0-6.2 kPa0-12.4 kPa0-15 kPa
3-0-35-0-510-0-10
Range, Pa10-0-500-600-1000-125 0-250 0-3000-500 0-7500-1000
Range MMof Water0-6 0-100-150-250-30 0-500-80 0-1000-1250-1500-2000-2500-300
Range, Pa30-0-3050-0-5060-0-60100-0-100125-0-125150-0-150250-0-250500-0-500
0.125-0-0.125.25-0-.25.5-0-.51-0-12-0-25-0-510-0-1015-0-15
2-0-25-0-5
15-0-15
Range Inches of Water
.05-0-.20-.25
0-.500-1.0
0-2.0 0-3.0
0-4.0 0-5.0
0-6.0 0-8.0
0-100-12
0-15 0-20
0-25 0-30
0-400-50
0-600-80
0-1000-120
0-1500-160
0-1800-250
RangePSI
0-10-2
0-30-4
0-50-10
0-150-20
0-30
Range,
CM ofWater
0-150-20
0-25 0-50
0-80 0-100
0-150 0-200
0-2500-300
A-310A 3-Way Vent Valves
In applications where pressure is continuous and the
Magnehelic®gage is connected by metal or plastic
tubing which cannot be easily removed, we suggest
using Dwyer A-310A vent valves to connect gage.
Pressure can then be removed to check or re-zero the
gage.
ACCESSORIES
A-321, Safety Relief Valve
A-448, 3-piece magnet kit for mounting Magnehelic®gage directly to
magnetic surface
A-135, Rubber gasket for panel mounting
A-401, Plastic Carry Case
005_Layout 2 7/12/13 11:19 AM Page 5
Di
f
f
e
r
e
n
t
i
a
l

P
r
e
s
s
u
r
e

T
r
a
n
s
m
i
t
t
e
r
s
PR
E
S
S
U
R
E
DWYER INSTRUMENTS, INC.| www.dwyer-inst.com56
Magnesense®Differential Pressure Transmitter
Monitors Pressure & Air Velocity
Series
MS
Ø3-7/16
[Ø87.31]
2-41/64
[67.07]
1/2 NPT
21/32
[16.67]21/32
[16.67]29/32[23.02]1/2
[12.70]
57/64[22.62]

(3) 3/16 (4.76) HOLESEQUALLY SPACED ON A4.115 (104.52) BC
2-11/64[55.17]
2-9/16
[65.09]
8-1/8
[206.38]
Ø35/84 [13.87]
SPECIFICATIONS
Service:Air and non-combustible, compatible gases.
Wetted Materials:Consult factory.
Accuracy:±1% for 0.25˝ (50 Pa), 0.5˝ (100 Pa), 2˝ (500 Pa), 5˝ (1250 Pa), 10˝ (2
kPa), 15˝ (3 kPa), 25˝ (5 kPa) ±2% for 0.1˝ (25 Pa), 1˝ (250 Pa) and all bi-
directional ranges.
Stability:±1% / year FSO.
Temperature Limits:0 to 150°F (-18 to 66°C).
Pressure Limits:1 psi maximum, operation; 10 psi, burst.
Power Requirements:10 to 35 VDC (2-wire); 17 to 36 VDC or isolated 21.6 to 33
VAC (3-wire).
Output Signals:4 to 20 mA (2-wire); 0 to 5 V, 0 to 10 V (3-wire).
Response Time:Adjustable 0.5 to 15 sec. time constant. Provides a 95%
response time of 1.5 to 45 seconds.
Zero & Span Adjustments:Digital push button.
Loop Resistance:Current output: 0-1250 Ω max; Voltage output: min. load
resistance 1 kΩ.
Current Consumption:40 mA max.
Display (optional):4 digit LCD.
Electrical Connections:
4-20 mA, 2-Wire: European style terminal block for 16 to 26 AWG.
0-10 V, 3-Wire: European style terminal block for 16 to 22 AWG.
Electrical Entry:1/2˝ NPS thread.
Accessory (A-151): Cable gland for 5 to 10 mm diameter cable.
Process Connections:3/16˝ ID tubing (5 mm ID). Maximum OD 9 mm.
Enclosure Rating:NEMA 4X (IP66).
Mounting Orientation:Diaphragm in vertical position.
Weight:8.0 oz (230 g).
Agency Approvals:CE.
The Series MS Magnesense®Differential Pressure Transmitter is an extremely
versatile transmitter for monitoring pressure and air velocity. This compact package is
loaded with features such as:
• Field selectable English or Metric ranges
• Field upgradeable LCD display
• Adjustable damping of output signal (with optional display)
• Ability to select a square root output for use with pitot tubes and other
similar flow sensors
Along with these features, the patented magnetic sensing technology provides exceptional
long term performance and enables the Magnesense®Differential Pressure Transmitter to
be the single solution for your pressure and flow applications.
Output
4-20 mA
0-10 V
0-5 V
4-20 mA
0-10 V
0-5 V
4-20 mA
4-20 mA
4-20 mA
0-10 V
0-10 V
0-10 V
4-20 mA
0-10 V
0-5 V
Model
MS-121*
MS-321*
MS-721*
MS-111*
MS-311*
MS-711*
MS-131
MS-141
MS-151
MS-331
MS-341
MS-351
MS-021
MS-221
MS-621
Standard MS with optional LCD
MS with optional LCD and static probe
See page 567 for process tubing options.
ACCESSORIES
A-435,Field Upgradeable LCD
A-480, Plastic Static Pressure Tip
A-481,Installer kit. Includes 2 plastic static pressure tips and 7 ft (2.1 m) of PVC
tubing
A-489,4˝ Straight Static Pressure Tip with Flange
A-302F-A,303 SS Static Pressure Tip with mounting flange. For 3/16˝ ID rubber or
plastic tubing. 4˝ insertion depth. Includes mounting screws
SCD-PS,100 to 240 VAC/VDC to 24 VDC Power Supply
OPTIONS
Note:Add -LCD to end of model for units with display.
*Models available with duct mount static pressure probe. Change last digit from 1 to
2. Ex. MS-122
Add suffix -NIST to end of model numbers for NIST traceable calibration certificate.Example: MS-021-NIST.
Add suffix -FC to end of model numbers for factory calibration certificate. Example:MS-021-FC.
Selectable Ranges
0.1˝, 0.25˝, 0.5˝ w.c. (25, 50, 100 Pa)
0.1˝, 0.25˝, 0.5˝ w.c. (25, 50, 100 Pa)
0.1˝, 0.25˝, 0.5˝ w.c. (25, 50, 100 Pa)
1˝, 2˝, 5˝ w.c. (250, 500, 1250 Pa)
1˝, 2˝, 5˝ w.c. (250, 500, 1250 Pa)
1˝, 2˝, 5˝ w.c. (250, 500, 1250 Pa)
10˝ w.c. (2 kPa)
15˝ w.c. (3 kPa)
25˝ w.c. (5 kPa)
10˝ w.c. (2 kPa)
15˝ w.c. (3 kPa)
25˝ w.c. (5 kPa)
±0.1˝, 0.25˝,0.5˝ w.c. (±25, 50, 100 Pa)
±0.1˝, 0.25˝,0.5˝ w.c. (±25, 50, 100 Pa)
±0.1˝, 0.25˝,0.5˝ w.c. (±25, 50, 100 Pa)
056_Layout 2 7/12/13 11:55 AM Page 56