INSTALLATION, OPERATION and MAINTENANCE Figures 950-D, 950-U, 950H-D and 950H-U Dual Body Combination Air Valves for Water INTRODUCTION This manual provides information to install, operate a small residual amount could remain so the valve and maintain GA Industries dual body combination air should be protected from freezing during storage.
Figure 950 and 920 are provided in the sections for each valve. REPLACEMENT PARTS Genuine replacement parts are available from your local GA Industries representative or from the factory: VAG USA, LLC 234 Clay Avenue Mars, PA 16046 USA Telephone: 724-776-1020 Item...
INSTALLATION, OPERATION and MAINTENANCE Figures 930-D, 930-U Air & Vacuum Valves valve by the “cowl.” The valves should remain in INTRODUCTION a clean, dry and weather protected area until This manual will provide the information to properly install, operate and maintain the valve installed.
gaskets are used the bolt material shall be TESTING ASTM A307 Grade B (or equivalent). Higher Valve operation can be easily tested. Close the strength bolting should only be used with full- inlet isolation valve and remove or loosen the face gaskets.
(5) with float guide (12) attached. Remove Genuine replacement parts are available from the rubber cushion (7) and flange bearing (12). your local VAG/GA Industries representative or from the factory: Inspect all parts for wear and damage. Minor scratches in the float are normal. Some floats...
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INSTALLATION, OPERATION and MAINTENANCE 10” & 12” Figures 930-D, 930-U Air & Vacuum Valves valve by the “cowl.” The valves should remain in INTRODUCTION a clean, dry, and weather protected area until This manual will provide the information to properly install, operate and maintain the valve installed.
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Flat-faced flanged valves should be mated with TESTING flat-faced flanges and full-face gaskets. If ring Valve operation can be easily tested. Close the inlet isolation valve and remove or loosen the gaskets are used the bolt material shall be pipe plug nearest the inlet to drain the water ASTM A307 Grade B (or equivalent).
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REPLACEMENT PARTS (5), follower ring (4) and seat (3). Genuine replacement parts are available from your local VAG/GA Industries representative or Inspect all parts for wear and damage. Minor from the factory: scratches in the float are normal. Some floats...
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INSTALLATION, OPERATION and MAINTENANCE Figure 920 & 920H Air Release Valves INTRODUCTION Inspect the valve upon receipt for damage This manual will provide the information to during shipment. Carefully unload all valves to properly install, operate and maintain the valve the ground without dropping.
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Lubricate the bolts or studs and insert around TROUBLESHOOTING • flange. Lightly tighten bolts until gaps are Valve Does Not Close / Fluid Leakage eliminated. Torque bolts in an alternating Verify debris has not collected on the seat pattern in graduated steps. If leakage occurs preventing tight closure.
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