www.internationalvalve.com
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
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.
