IVM Vent-Tech SWG C Series User manual

Manufacturer:
International Valve Marketing, LLC
2571 Kaneville Court
Geneva, IL 60134
P: 630-232-4207
F: 630-232-8005
[e-mail]
Operation and Maintenance
Manual
VENT-TECH MODEL SWG,
SERIES C, B, V, AND N
MODEL SWG –SERIES C, B, V, AND N
WASTE WATER AIR RELEASE AND VACUUM RELIEF
VALVES
Revised: 09-13-13
Vent-Tech
Sewage Air Relief Valve
Model SWG
Local Representative:
Southwest Valve
402 Bedford #111, Fresno, CA 93711
P: 559-261-2703
F: 559-261-2711

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INSTALLATION, OPERATION AND MAINTENANCE MANUAL
MODEL SWG, SERIES C, B, V, N
International Valve Marketing, LLC
Page | 2
Last Revision Date: 09/13/2013
OPERATION AND MAINTENANCE MANUAL FOR VENT-TECH MODEL SWG, SERIES C, B,
V, AND N, WASTE WATER AIR RELEASE AND VACUUM RELIEF VALVES
SECT: 1.01 TABLE OF CONTENTS
SECT: 1.01 TABLE OF CONTENTS ......................................................................................................................2
SECT: 1.02 INTRODUCTION ..............................................................................................................................2
SECT: 1.03 SAFETY MESSAGES..........................................................................................................................3
SECT: 1.04 RECEIVING, INSPECTION AND STORAGE ........................................................................................3
SECT: 1.05 DESCRIPTION ..................................................................................................................................3
SECT: 1.06 PARTS..............................................................................................................................................5
SECT: 1.07 IVM SERVICE ...................................................................................................................................7
SECT: 1.08 HANDLING AND STORAGE ..............................................................................................................7
SECT: 1.09 INSTALLATION.................................................................................................................................7
SECT: 1.10 MAINTENACE..................................................................................................................................8
SECT: 1.11 OPERATION.................................................................................................................................. 11
SECT: 1.12 WARRANTY .................................................................................................................................. 12
SECT: 1.13 ADDENDUM................................................................................................................................. 14
SECT: 1.02 INTRODUCTION
Thank you for purchasing the Vent-Tech Model SWG “Anti-Surge” air release/vacuum relief
valve for sewage duty. Vent-Tech, manufactured by International Valve Marketing (IVM, LLC)
was incorporated in 2009 for the express purpose of expanding and improving the technological
advances of the flat float combination air release valve. IVM, LLC has gained success quickly and
is a recognized air valve leader. This success is the result of incorporating thirteen years of
manufacturing experience with the flat float design and the cutting edge Patent Pending
advanced flow configurations. The result is the SWG line of Sewage Valves.
The Vent-Tech Model SWG, Series C, B, V and N waste water air release and vacuum relief valves
are ruggedly constructed to provide years of trouble-free, low maintenance operation. These
instructions provide the proper Operation and Maintenance information for use by personnel
who are responsible for the operation and maintenance of Vent-Tech Model SWG, Series C, B, V
and N waste water air release and vacuum relief valves.

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INSTALLATION, OPERATION AND MAINTENANCE MANUAL
MODEL SWG, SERIES C, B, V, N
International Valve Marketing, LLC
Page | 3
Last Revision Date: 09/13/2013
WARNING!
Personnel involved in the installation or maintenance of valves should be constantly alert to potential
emissions of pipeline material and take appropriate safety precautions. Always wear suitable protection
when dealing with hazardous pipeline materials. Handle valves, which have been removed from service
with suitable protection for any potential pipeline material in the valve.
SECT: 1.03 SAFETY MESSAGES
All safety messages in the instructions are flagged with an exclamation symbol and the word
“Caution,” “Warning,” or “Danger.” These messages indicate procedures that must be followed
exactly to avoid equipment damage, personal injury or death. Safety label(s) on the product
indicate hazards that can cause equipment damage, personal injury or death.
If a safety label becomes difficult to see or read, or if a label has been removed, please contact
International Valve Marketing for replacement labels(s).
SECT: 1.04 RECEIVING, INSPECTION AND STORAGE
Your Vent-Tech Model SWG, Series C, B, V and N waste water air release and vacuum relief valve
has been packaged to provide protection during shipment; however, it can be damaged in
transport. Upon receipt, inspect the unit for damage and file a claim with the carrier if damage
is apparent. Carefully, unload all valves to the ground without dropping. The valve should be
lifted by the body, the sealing flange fasteners or where applicable, the factory supplied lifting
lugs included with your shipment.
If installation will be delayed, the valves should remain in a clean, dry and weather protected
area until installed. All threaded connections should be protected from damage.
SECT: 1.05 DESCRIPTION
The Vent-Tech Air Relief Valves work in many different types of environments, protecting
pipeline infrastructure against the effects of water hammering and vacuum. High quality
stainless steel parts, HDPE floats, anti-wear inserts and air flow design enhancements are
components of each Vent-Tech sewage air relief valve. When combined with Vent-Tech’s
superior design elements, these materials ensure that the valve operates in highly corrosive
environments within a wide range of pressures and temperatures. Each valve body contains air
flow enhancements to maximize flow under vacuum conditions.
All Vent-Tech Model SWG Sewage valves consist of 4 primary assemblies. These are:
(a) Inlet Connection
There are 4 series of valve configurations available in the Model SWG line of Vent-Tech Sewage
valves. Inlet configurations can be adapted to many configurations to pipe discharge effluent
gasses for treatment using elbows, vertical tees, horizontal tees and/or swivel flanges. Your
particular configuration may not match exactly the following depictions.
Series - C
Series - B
Series - V
Series - N

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INSTALLATION, OPERATION AND MAINTENANCE MANUAL
MODEL SWG, SERIES C, B, V, N
International Valve Marketing, LLC
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Last Revision Date: 09/13/2013
The functions of a model SWG Sewage valve are:
(i) Series C:
Allow large air release at start-up
Discharge of air/gas from pressurized pipeline
Surge control to prevent the development of hydraulic transients during start-up and
pressure surges
Full port, high volume air intake for vacuum relief
(ii) Series B:
Controlled air/gas discharge at pump start up
Discharge of air/gas from pressurized pipeline
Surge control to prevent the development of hydraulic transients during start-up and
pressure surges
Full port, high volume air intake for vacuum relief
(iii) Series V:
Allow large air release at start-up
Discharge of air/gas from pressurized pipeline
Surge control to prevent the development of hydraulic transients during start-up and
pressure surges
(iv) Series N:
Full port, high volume air intake for vacuum relief
(b) Valve Body
SWG10
10 Bar
Standard Body
SWG16 / SWG25
16-25 Bar
Expanded Body
SWG10 / SWG16 / SWG25
10-25 Bar
Reduced Height Body
(c) Base Flange
Male NPT Thread
-T
Threaded Connection
ANSI Studded Flange
-S
Studded Connection
Trophy Connection
-R
Bolted Connection

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INSTALLATION, OPERATION AND MAINTENANCE MANUAL
MODEL SWG, SERIES C, B, V, N
International Valve Marketing, LLC
Page | 5
Last Revision Date: 09/13/2013
(d) Float Stack Configurations
There are three primary float configurations contained within the valve bodies listed above.
Type 1
Series –C, V
Series - B
Series - N
Type 2
SECT: 1.06 PARTS
Recommended spare parts are listed on the assembly drawing. These parts should be stocked to
minimize downtime. Order parts from your local Vent-Tech sales representative, or directly
from International Valve Marketing. When ordering parts, please refer to the following:
If the valve has a Vent-Tech name-plate, please include the model number, date of
manufacture, serial number, small orifice and nozzle size and any station information that may
be included.
If there isn’t any nameplate visible on the valve, please include valve model number, the part
name, and item number from the assembly drawing. You may contact your local Vent-Tech
Representative to help you identify your valve.
Spare and replacement parts are available in the following configurations:

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INSTALLATION, OPERATION AND MAINTENANCE MANUAL
MODEL SWG, SERIES C, B, V, N
International Valve Marketing, LLC
Page | 6
Last Revision Date: 09/13/2013
Description
Contents
O-Ring Repair Kit
An O-ring Repair Kit includes all O-rings necessary to rebuild the valve. It includes
O-rings for all internal floats and the sealing flange.
Rebuild Kit
The Rebuild Kit includes all O-rings as above and includes a nozzle assembly which
includes a nozzle seat, small nozzle, and upper and lower nozzle plates.
Float Assembly Kit
The Float Assembly Kit replaces all internal parts of the valve. This includes all
floats, O-rings and a complete nozzle assembly.
O-Ring Repair Kit Part Numbers
Valve Size
Series-C
Series-B
Series-V
Series-N
02SWG
SWG02ORK-C
SWG02ORK-B
SWG02ORK-V
SWG02ORK-N
03SWG
SWG03ORK-C
SWG03ORK-B
SWG03ORK-V
SWG03ORK-N
04SWG
SWG04ORK-C
SWG04ORK-B
SWG04ORK-V
SWG04ORK-N
44SWG
SWG44ORK-C
SWG44ORK-B
SWG44ORK-V
SWG44ORK-N
54SWG
SWG54ORK-C
SWG54ORK-B
SWG54ORK-V
SWG54ORK-N
05SWG
SWG05ORK-C
SWG05ORK-B
SWG05ORK-V
SWG05ORK-N
56SWG
SWG56ORK-C
SWG56ORK-B
SWG56ORK-V
SWG56ORK-N
06SWG
SWG06ORK-C
SWG06ORK-B
SWG06ORK-V
SWG06ORK-N
08SWG
SWG08ORK-C
SWG08ORK-B
SWG08ORK-V
SWG08ORK-N
10SWG
SWG10ORK-C
SWG10ORK-B
SWG10ORK-V
SWG10ORK-N
12SWG
SWG12ORK-C
SWG12ORK-B
SWG12ORK-V
SWG12ORK-N
O-Ring Repair Kit Part Numbers
Valve Size
Series-C
Series-B
Series-V
Series-N
02SWG
SWG02REB-C
SWG02REB-B
SWG02REB-V
SWG02REB-N
03SWG
SWG03REB-C
SWG03REB-B
SWG03REB-V
SWG03REB-N
04SWG
SWG04REB-C
SWG04REB-B
SWG04REB-V
SWG04REB-N
44SWG
SWG44REB-C
SWG44REB-B
SWG44REB-V
SWG44REB-N
54SWG
SWG54REB-C
SWG54REB-B
SWG54REB-V
SWG54REB-N
05SWG
SWG05REB-C
SWG05REB-B
SWG05REB-V
SWG05REB-N
56SWG
SWG56REB-C
SWG56REB-B
SWG56REB-V
SWG56REB-N
06SWG
SWG06REB-C
SWG06REB-B
SWG06REB-V
SWG06REB-N
08SWG
SWG08REB-C
SWG08REB-B
SWG08REB-V
SWG08REB-N
10SWG
SWG10REB-C
SWG10REB-B
SWG10REB-V
SWG10REB-N
12SWG
SWG12REB-C
SWG12REB-B
SWG12REB-V
SWG12REB-N
O-Ring Repair Kit Part Numbers
Valve Size
Series-C
Series-B
Series-V
Series-N
02SWG
SWG02FAK-C
SWG02FAK-B
SWG02FAK-V
SWG02FAK-N
03SWG
SWG03FAK-C
SWG03FAK-B
SWG03FAK-V
SWG03FAK-N
04SWG
SWG04FAK-C
SWG04FAK-B
SWG04FAK-V
SWG04FAK-N
44SWG
SWG44FAK-C
SWG44FAK-B
SWG44FAK-V
SWG44FAK-N
54SWG
SWG54FAK-C
SWG54FAK-B
SWG54FAK-V
SWG54FAK-N
05SWG
SWG05FAK-C
SWG05FAK-B
SWG05FAK-V
SWG05FAK-N
56SWG
SWG56FAK-C
SWG56FAK-B
SWG56FAK-V
SWG56FAK-N
06SWG
SWG06FAK-C
SWG06FAK-B
SWG06FAK-V
SWG06FAK-N
08SWG
SWG08FAK-C
SWG08FAK-B
SWG08FAK-V
SWG08FAK-N
10SWG
SWG10FAK-C
SWG10FAK-B
SWG10FAK-V
SWG10FAK-N
12SWG
SWG12FAK-C
SWG12FAK-B
SWG12FAK-V
SWG12FAK-N

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INSTALLATION, OPERATION AND MAINTENANCE MANUAL
MODEL SWG, SERIES C, B, V, N
International Valve Marketing, LLC
Page | 7
Last Revision Date: 09/13/2013
SECT: 1.07 IVM SERVICE
Vent-Tech service personnel are available to maintain and repair all Vent-Tech products. Vent-
Tech also offers customized training programs and consultation services.
For more information, contact your local Vent-Tech sale representative or visit our website at
www.internationalvalve.com.
SECT: 1.08 HANDLING AND STORAGE
Lifting the valve improperly may damage it. Lift the valve with slings, chains or cables fastened
around the valve body, or fastened to bolts, rods, or plates through the bolt holes in the flanges.
SECT: 1.09 INSTALLATION
Selection and installation of the Vent-Tech Model SWG Series C-B-V-N Air relief valves should be
made with careful review by the system engineers. Critical elements of a successful air relief
valve installation are recommended below:
1. Install isolation valves below each air valve. These can be supplied by International Valve
Marketing, LLC (IVM). If supplied by IVM, they shall be 316 SS –full port ball valves.
2. Install an air collector Tee underneath the isolation valve. The dimension of the valve end of
the Tee should not be less than ½ the diameter of the main pipe line.
3. Install rubber sealing gaskets between each mating flange surface to ensure leak-proof
assembly as per industry standard practice.
4. An installed Vent-Tech Model SWG valve should not be misaligned greater than 7 degrees
from center.
5. Fasteners should be tightened to the recommended torque specified in Table 1. Care should
be taken to not over torque or under-torque these fasteners. An appropriate fastener
engineer should be consulted if necessary.

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INSTALLATION, OPERATION AND MAINTENANCE MANUAL
MODEL SWG, SERIES C, B, V, N
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Last Revision Date: 09/13/2013
WARNING!
Removing the valve from service or disassembling the valve while there is pressure in the valve body
may result in serious injury or damage to the valve.
Relieve pipeline pressure and lockout the isolation valve before servicing the valve.
SECT: 1.10 MAINTENANCE
(a) Disassembly Procedure
1. Close isolation valve (1)
2. Open gauge port ball valve until pressure is
released (2)
3. Once Pressure is released, loosen bolts, nuts and
washers (3)
4. Remove top flange assembly (4) and check sealing
O-ring for damage
5. Remove multi-orifice Anti-Surge Float (5) and
check sealing O-ring for damage
6. Remove Control Float (6) and Nozzle Float (7)
assembly from valve body.
7. The valve is now dis-assembled. Clean top flange,
anti-surge float and control float by rinsing with
water. Clean interior of valve body.
8. Dis-assemble Nozzle Float (7) from lower Control
Float (6).
9. Remove the Nozzle Float (7) from the Nozzle (8).
To hold Nozzle (8) from rotating, insert a flat screw
driver thru the center hole in the Nozzle Float (7)
into the slotted end of the Nozzle (8) OR through
one of the slots in the Upper Nozzle Assembly
Plate (9) and unscrew the Nozzle Float (7).
10. Use a screw driver to dis-assemble the Upper
Nozzle Assembly Plate (9), Lower Nozzle Retaining
Plate (10) and the Nozzle (8) from the Control Float
(6). Inspect the small orifice in the Nozzle (8) for
blockage and the Nozzle Seat (11) for damage or
permanent deformation. Rinse Nozzle (8) in clean
water.

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INSTALLATION, OPERATION AND MAINTENANCE MANUAL
MODEL SWG, SERIES C, B, V, N
International Valve Marketing, LLC
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Last Revision Date: 09/13/2013
(b) Assembly Procedure
1. Insert Nozzle Seat (11) in Control Float (6)
2. Assemble Upper Nozzle Assembly Plate (9), Nozzle (8), and Lower Nozzle Retaining Plate
(10) and attach to Control Float (6).
3. Assemble Nozzle Float (7) to Nozzle (8). Apply new Teflon tape to Nozzle (8) threads. To hold
Nozzle (8) from rotating, insert a flat screw driver thru the center hole in the Nozzle Float (7)
into the slotted end of the Nozzle (8) OR through one of the slots in the Upper Nozzle
Assembly Plate (9) and attach the Nozzle Float (7). NOTE: The O-Ring on Nozzle Float (7)
should be facing upward.
4. Insert the assembled Control Float (6) and Nozzle Float (7) inside valve body.
5. Insert Anti-Surge Float (5) into valve. NOTE: The O-Ring on Anti-Surge Float (5) should be
facing upward, while the multi-orifice Wear Inserts face downward.
6. Place O-ring in upper Body Flange groove on top of valve body.
7. Replace top flange assembly of valve (4). NOTE: Do NOT slide flange into place. Place in a
downward motion to align top flange and valve flange bolt holes. Inspect flange mating to
assure O-ring has not moved out of the O-ring groove.
8. Assemble nuts, bolts and washers.
9. Tighten nuts, bolts, and washers in a 12 O-clock, 6-O-clock, 3- O-clock and 9-O-clock fashion
by hand until all bolt/nut assemblies are hand tight. Tighten nuts and bolts again with a
wrench. Locate washers on the nut-side of the flange.
10. Follow standard flange tightening procedures,
11. Apply sealing tape to side ports and tighten cap, ball-valve or pressure gauge onto valve
ports.
(c) Maintenance Schedule
Because pipeline conditions vary greatly from installation to installation, a dynamic maintenance
schedule should be implemented to ensure proper valve functioning, to avoid rendering the
valve inoperable due to a buildup of fats, oils, grease and other debris and to prevent valve
leakage. The development of a proper and effective maintenance schedule is accomplished by
periodic inspection and evaluation of the installed valve combined with a corresponding
adjustment to the maintenance interval.
To best determine the appropriate maintenance interval, periodic inspection for proper function
can be performed by placing a listening device or an ear near the valve and/or valve vault at
pipe-line start-up. If audible air release and valve closure is noted, the valve is functioning
properly.
Upon installation, each Vent-Tech valve should be maintained and evaluated by a certified
system maintenance mechanic after 30 days by following the assembly procedures listed in this
section. Depending on the condition of the valve and the requirements of the application, the
maximum maintenance interval can be extended in 30 day increments up to a maximum
maintenance interval of 1-year.

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INSTALLATION, OPERATION AND MAINTENANCE MANUAL
MODEL SWG, SERIES C, B, V, N
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Last Revision Date: 09/13/2013
Two side ports are provided on each valve. The upper port is called the gauge port and the
lower port is called a pressure relief port. After gaining a familiarity with the pipeline conditions
and your Vent-Tech valve, these ports utilized together can serve as flushing ports to flush the
valve without requiring disassembly and re-assembly of the valve. Using the upper port as the
inlet and the lower port as the outlet, a certified system maintenance mechanic can:
Close the isolation valve and depressurize the valve.
Flush a stream of water with a maximum recommended temperature of 160o F through the
valve. In the rare occasion where temperatures above 180oF are beneficial, please contact
IVM engineering. [e-mail]
Continue flushing the valve until water runs clear
Consult local requirements for handling of pipeline emissions.
An example maintenance worksheet is included in the Addendum at the end of this manual
(d) Troubleshooting Air Valve Problems
This section contains a table that describes possible solutions to problems that may occur when using
your air valve. The table contains:
• Symptoms that describe the type of problem.
• Reasons for the problem
• Possible solutions that describe what you should do to try to solve the problem.
Trouble Shooting
Symptom
Reason
Possible Solutions
Leak at Large Orifice
Debris stuck in valve
Follow enclosed Maintenance
Instructions
Leak thru Center anti-
surge orifice
Nozzle not sealed in Nozzle Float
Follow enclosed Maintenance
Instructions
Leak at Sealing Flange and
body flange
Sealing Flange not secured
Tighten Sealing Flange Fasteners
Small volumes of water
evident on top of Anti-
Surge Float or top Sealing
Flange during start-up
Normal operation of valve
No solution required
WARNING! POTENTIAL SCALDING HAZARD!
Using hot water at temperatures above 120oF poses the risk of personal injury if proper awareness,,
care and attention guidelines are not followed.

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INSTALLATION, OPERATION AND MAINTENANCE MANUAL
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Last Revision Date: 09/13/2013
SECT: 1.11 OPERATION
Pre-Operation
Series –C
Series –B
Series –V
Series - N
Valve Pre-Operation
· Floats are at rest
· Pump is off
· Floats are at rest
· Pump is off
· Floats are at rest
· Pump is off
· Floats are at rest
· Pump is off
Initial Start-up (First Time Use)
1. Install valves.
2. Verify Isolation valve installed and closed.
3. Verify Port Valves are closed.
4. Verify fasteners are properly installed.
Pump Start -Up
· Air Enters Valve body
· Floats are at rest
· Air escapes between annulus of
valve chamber and floats
· Air Enters Valve body
· Floats are at rest
· Surge float is Biased closed and
seated against top flange
· Air escapes between annulus of
valve chamber and floats
Initial Start-up (First Time Use)
1. Visit each valve location sequentially.
2. Open Isolation valve.
3. Verify leak-free assembly.
NORMAL OPERATION
High Flow Reaches Valve - Activates Surge Float
· High air flow lifts surge float and
seats it against the top flange
· Air escapes through multiple
orifices in surge float
· Partial closure creates
backpressure, slows
approaching fluid
· Dynamic closure avoided,
controls water hammer
· Air escapes through multiple
orifices in surge float
· Partial closure creates
backpressure, slows
approaching fluid
· Dynamic closure avoided,
controls water hammer
· High air flow lifts surge float
and seats it against the top
flange
· Air escapes through multiple
orifices in surge float
· Partial closure creates
backpressure, slows
approaching fluid
· Dynamic closure avoided,
controls water hammer
Fluid Arrival Closes Valve
· Buoyancy lifts control float
· Seats control and nozzle floats
against anti-surge float
· Valve body is now pressurized
· Buoyancy lifts control float
· Seats control and nozzle floats
against anti-surge float
· Valve body is now pressurized
· Buoyancy lifts control float
· Seats control and nozzle floats
against anti-surge float
· Valve body is now pressurized
Trapped Gases Activate Nozzle Float
· Entrapped gases accumulate in
valve chamber
· Control float loses buoyancy
and drops from nozzle float
· Accumulated air escapes
through nozzle and surge floats
· Entrapped gases accumulate in
valve chamber
· Control float loses buoyancy
and drops from nozzle float
· Accumulated air escapes
through nozzle and surge floats
· Entrapped gases accumulate in
valve chamber
· Control float loses buoyancy
and drops from nozzle float
· Accumulated air escapes
through nozzle and surge floats
Air Evacuation Closes Valve
· Fluid replaces escaped air and
buoyancy lifts control float
· Control float seats nozzle float
against surge float
· As more gas accumulates,
control float loses buoyancy and
steps 4 through 6 repeat
· Fluid replaces escaped air and
buoyancy lifts control float
· Control float seats nozzle float
against surge float
· As more gas accumulates,
control float loses buoyancy
and steps 4 through 6 repeat
· Fluid replaces escaped air and
buoyancy lifts control float
· Control float seats nozzle float
against surge float
· As more gas accumulates,
control float loses buoyancy and
steps 4 through 6 repeat
Post-Operation
Pump Shut Down or Column Separation
· Fluid evacuates from valve and
floats drop
· Air enters inlet/outlet yielding
vacuum protection
· Fluid evacuates from valve and
floats drop
· Air enters inlet/outlet yielding
vacuum protection
· Fluid evacuates from valve and
floats drop
· Air enters inlet/outlet yielding
vacuum protection
· Fluid evacuates from valve
and floats drop
· Air enters inlet/outlet
yielding vacuum protection
EMERGENCY OPERATION PROCEDURE: LEAKING VALVE
1. Close Isolation Valve
2. Bleed Pressure from Valve
3. Service Valve

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INSTALLATION, OPERATION AND MAINTENANCE MANUAL
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Last Revision Date: 09/13/2013
SECT: 1.12 WARRANTY
For Vent-Tech Air Release Valves Models WTR, WZW, SWG, SZG, SSG
This Warranty cannot be transferred - it is extended only to the Buyer, as defined in the Terms of
Sale. By accepting and keeping this Product, Buyer agrees to all of the warranty terms and
limitations of liability described below.
International Valve Marketing, LLC (“Seller”) warrants to the Buyer that all Products delivered
hereunder shall be free from defects in manufacture for a period of two (2) years from the date of
final acceptance of the Product by Buyer, subject to the exclusions and limitations below.
This Warranty shall not apply:
if the Product is used, operated, adjusted, or serviced in a manner inconsistent with the
directions provided with the Product;
to any failure or malfunction resulting from abuse; improper, negligent, unauthorized use,
adjustment, repair, handling, shipping (by anyone other than Seller), or operation; accident;
catastrophe; or alteration of the Product;
to any failure or problem resulting from the use, operation, or installation of the Product for
any purpose other than those specified in the Directions or alteration of any part of the
Product or to any failure resulting from improper usage of the Product;
to coverage for repair or replacement costs that are required by normal wear and tear of the
Product;
to coverage for labor costs, shipping charges, service charges, delivery expenses,
administrative fees, or any costs incurred in removing or reinstalling the Product;
to coverage for any claims submitted to Seller after expiration of the applicable warranty time
period described in this Warranty; and
to coverage for any special, indirect, incidental, punitive, or consequential damages arising in
any way in connection with any product or this sale, and in no event shall Seller be responsible
or liable for such damages.
Products not manufactured by Seller shall not be covered by any warranty of the Seller and shall only
be subject to any warranty provided to Seller by the manufacturer, distributor, or other party.
“The foregoing Warranty is exclusive and lieu of any and all other warranties, expressed or implied.
No warranty of merchantability, no implied warranty of fitness for any particular purpose, and no
implied warranty arising by usage of trade, course of dealing or course of performance is given by
Seller or shall arise by or in connection with this sale and/or the Seller’s and/or Buyer’s conduct in
relation thereto or to each other, and in no event shall Seller be liable on any such warranty with
respect to any product. Some states do not allow limitations on how long an implied warranty
lasts, so the above limitation may not apply to you.
Liability of the Seller under or in connection with this sale and/or the foregoing Warranty shall be
limited, at the sole option of the Seller, to the repair, replacement, or a refund of the purchase price
of any product or part thereof supplied to Buyer by Seller. Promptly after Buyer’s discovery of any
alleged defect and prior to the expiration of the two-year warranty period, Buyer must give Seller
notice, in writing, detailing Buyer’s claim of defect. Prior to returning any products to Seller, Buyer

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INSTALLATION, OPERATION AND MAINTENANCE MANUAL
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Last Revision Date: 09/13/2013
must obtain a Returned Goods Authorization (“RGA”) number from Seller. Seller will not accept any
responsibility for products returned without a RGA. Once the RGA is obtained, Buyer shall ship the
product to Seller freight prepaid. Notice and the product shall be sent to the following address: 2571
Kaneville Court, Geneva, Il 60134. Failure by Buyer to notify Seller and return such product to Seller
after Buyer’s discovery of such alleged defect shall constitute a waiver by Buyer of any and all claims
of any kind with respect thereto. The risk of loss and freight charges to and from Seller in connection
with any returned product shall be borne by Buyer but Seller shall bear such additional freight
charges arising in connection with any returned product ultimately determined by Seller to be
defective under the terms of this Warranty, the cost of repair or replacement (if any) of such product,
and the risk of loss or damage while such product is in Seller’s possession at its place of business.
Any materials, equipment, supplies or items furnished in replacement or repair of the product shall
be subject to all warranty provisions contained herein to the same extent as materials, equipment,
supplies, or other items initially delivered. The warranty with respect to such additional or
replacement materials, equipment, supplies, or other items thereof shall be in force for the
unexpired warranty period of the supplies repaired or replaced.
Notwithstanding the above, Seller shall replace O-rings, nozzles, nozzle seats, and nozzle plates
necessary to the repair of products delivered under this warranty, free of charge, FOB factory for a
period of ten (10) years.
The foregoing remedy shall constitute the sole and exclusive remedy of the Buyer in connection with
the sale of the product to Buyer and this Warranty. Except as specifically provided herein, Seller shall
not be responsible or liable for any costs, expenses, or damages of Buyer in connection with any
removal, repair, or replacement (including any attempts or actions relating thereto) of any allegedly
defective products, and no charge or setoff of any kind by Buyer relating thereto shall be made
against the Seller without prior and specific written approval of Seller.
Seller agrees to sell its products only upon all terms and conditions set forth in the Seller’s Terms
and Conditions of Sales. The agreement of Seller to sell its products is expressly conditioned upon
the Buyer’s assent to Seller’s Terms and Conditions of Sales. Failure by Buyer to comply with those
terms will void this Warranty. Buyer’s acceptance of any products provided under this shall
constitute Buyer’s assent to the Terms and Conditions of Sale.
The only warranties for International Valve Marketing, LLC products and services are set forth in the express warranty
statements accompanying such products and services. Nothing herein should be construed as constituting an additional
warranty. International Valve Marketing, LLC shall not be liable for technical or editorial errors or omissions contained
herein.
This document contains proprietary information that is protected by copyright. No part of this document may be
photocopied, reproduced, or translated to another language without the prior written consent of International Valve
Marketing, LLC.
International Valve Marketing, LLC. 2571 Kaneville Court, Geneva, IL 60134 USA
Copyright © 2013 International Valve Marketing, LLC

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INSTALLATION, OPERATION AND MAINTENANCE MANUAL
MODEL SWG, SERIES C, B, V, N
International Valve Marketing, LLC
Page | 14
Last Revision Date: 09/13/2013
SECT: 1.13 ADDENDUM
TABLE 1: TORQUE VALUES FOR STAINLESS STEEL FASTENERS 1
Bolt Size
304 Stainless Steel
(18-8)
316 Stainless Steel
Bolt Size
304 Stainless Steel (18-
8)
316 Stainless Steel
Dry
Lubed
Dry
Lubed
Dry
Lubed
Dry
Lubed
(in)
in.-lbs.
in.-lbs.
in.-lbs.
in.-lbs.
(in.)
ft.-lbs.
ft.-lbs.
ft.-lbs.
ft.-lbs.
6-32
9.6
8.2
10.1
8.6
1/2-13
43
37
45
38
6-40
12.1
10.3
12.7
10.8
1/2-20
45
38
47
40
8-32
19.8
16.8
20.7
17.6
9/16-12
56
48
59
50
8-36
22
18.7
23
19.6
9/16-18
62
53
65
55
10-24
22.8
19.4
23.8
20.2
5/8-11
92
78
96
82
10-32
31.7
26.9
33.1
28.1
5/8-18
103
88
108
92
1/4-20
75.2
63.9
78.8
67
3/4-10
127
108
131
111
1/4-28
94
80
99
84
3/4-16
124
105
129
110
5/16-18
132
112
138
117
7/8-9
194
165
202
172
5/16-24
142
121
147
125
7/8-14
193
164
201
171
3/8-16
236
201
247
210
1-8
286
243
299
254
3/8-24
259
220
271
230
1-14
259
220
270
230
7/16-14
376
320
393
334
1 1/8-7
413
351
432
367
7/16-20
400
340
418
355
1 1/8-12
390
332
408
347
Bolt Size
A2 Stainless Steel
A4 Stainless Steel
.
Dry
Lubed
Dry
Lubed
(mm)
N-m
N-m
N-m
N-m
3.0
1.0
0.9
1.0
0.9
4.0
2.6
2.3
2.6
2.3
5.0
5.1
4.6
5.1
4.6
6.0
8.7
7.8
8.7
7.8
8.0
21.2
19.1
21.2
19.1
10.0
42
38
42
38
12.0
73
66
73
66
14.0
118
106
118
106
16.0
180
162
180
162
18.0
258
232
258
232
20.0
370
333
370
333
22.0
485
437
485
437
24.0
603
543
603
543
1 Suggested Maximum Torque Values: While International Valve Marketing, LLC has used reliable sources to determine these values, there are many
variables that will affect the results and the use of this information is at sole risk of the user. DO NOT OVER or UNDER TIGHTEN fasteners.
NOTE: Stainless steel fasteners tend to gall while being tightened. The risk of galling or thread seizing can be reduced by the:
Use of lubrication.
Tightening of fasteners with low rpm’s; without interruptions.
Application of only light pressure.
Avoidance prevailing torque lock nuts.

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INSTALLATION, OPERATION AND MAINTENANCE MANUAL
MODEL SWG, SERIES C, B, V, N
International Valve Marketing, LLC
Page | 15
Last Revision Date: 09/13/2013
Maintenance Template
Valve Location: Air Valve Size/Model:
First Week after initial installation & Start-Up
Action
Result
Response
Pass/Fail
Or Notes
Verify installed valve has no
leaks at isolation valve, side
ports, or exit orifices
No leaks
Leaks
As expected
Correct as necessary
While pumps are in
operation listen for the
occasional release of air/gas.
Air being released can be
heard as “Pst, Pst, Pst”
Floats in operation
No air/gas is being released
Valve may be clogged or no air has
been accumulated to be released.
Turn off pumps and listen
and to confirm that with
fluid evacuation floats drop
in valve
Floats are heard dropping to
bottom of valve.
A mild thud is heard
Floats are NOT heard
dropping to bottom of valve.
If no audio is heard when pumps are
shut down it may indicate a valve
clogging
Follow enclosed dis-
assembly procedure
Floats should be clean and
free of debris.
No substantial FOG should
be visible on float wall or
valve body
Make Note if there is excessive
debris
This is a critical point in the logging of the valve’s “experience”. The SWG is a sewage valve. It should be expected
that the internal chamber of the valve and lower control float will show debris and remnants of the sewage media.
However, this debris and/or FOG should be monitored so it does not interfere with seating of any O-rings or with the
movement of any of the floats. Over time there will be a visible surge level and an operational level shown on the
control float body. The Surge level should be approximately 2/3 of height of the valve. The operational level should
be approximately 1/3 the height of the valve. Make note on how clean or dirty the internals of the valve are after this
first week inspection.
It is not expected that any cleaning action be performed after this inspection. If valve has been found to be
operational with no excessive debris the valve should be assembled and closed with no cleaning action being taken.
Follow enclosed assembly and installation procedures
Week 2 - 4
For week 2 through 4, follow the same inspection procedures as the first week. Notes should be taken as to change,
if any, in the amount of debris/Fog accumulation inside the air valve. No cleaning maintenance should be performed
unless it is considered necessary. MAINTAIN GOOD RECORDKEEPING
The purpose of the above worksheet is to determine an effective maintenance schedule based on the particular
conditions present at each valve location.
When the log performance is completed and preventive maintenance schedule set up you may refer to the O &
M Manual for the specific steps on how clean the valve. It is recommended that regardless of the log
performance results, the valve be cleaned once a year for the inspection of the rubber nozzle seat.