Vag GA INDUSTRIES 920 Installation, Operation And Maintenance Manual

6” to 12” dual body combination air valves for water

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INSTALLATION, OPERATION AND
MAINTENANCE MANUAL
6" to 12" Figures 950-D, 950-U,
Dual Body Combination Air Valves
Telephone (724) 776-1020 • Fax (724) 776-1254
1
950H-D and 950H-U
For Water
TABLE OF CONTENTS
Section 1
Figure 950 Combination Air Valve
Figure 930 Air & Vacuum Valve 6" & 8"
Section 2
Figure 930 Air & Vacuum Valve 10" & 12"
Section 3
Section 4
Figure 920 Air Release Valve
234 Clay Avenue • Mars, PA 16046 USA
E-mail:
info-ga@vag-group.com
Manual Number IOM-950.02-1025024

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Summary of Contents for Vag GA INDUSTRIES 920

  • Page 1 Section 2 Figure 930 Air & Vacuum Valve 10” & 12” Section 3 Section 4 Figure 920 Air Release Valve 234 Clay Avenue • Mars, PA 16046 USA Telephone (724) 776-1020 • Fax (724) 776-1254 E-mail: info-ga@vag-group.com Manual Number IOM-950.02-1025024...
  • Page 2 Section 1...
  • Page 3: Description Of Operation

    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.
  • Page 4: Preventative Maintenance

    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...
  • Page 5 Section 2...
  • Page 6 INSTALLATION, OPERATION AND MAINTENANCE MANUAL Figures 930-D, 930-U 6” & 8” Air & Vacuum Valves for Clean Water Drawing EAV-7049 234 Clay Avenue • Mars, PA 16046 USA Telephone (724) 776-1020 • Fax (724) 776-1254 E-mail: info-ga@vag-group.com Manual Number 930.2-IOM 120220...
  • Page 7: Installation

    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.
  • Page 8: Valve Construction

    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.
  • Page 9: Replacement Parts

    (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...
  • Page 10 Section 3...
  • Page 11 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.
  • Page 12 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).
  • Page 13 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...
  • Page 15 Section 4...
  • Page 16 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.
  • Page 17 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.
  • Page 18 Clean all parts especially seating and sealing REPLACEMENT PARTS surfaces before reassembling valve. Worn parts Genuine replacement parts are available from should be replaced during re-assembly. your local VAG/GA Industries representative or from the factory: © Apply Loctite PST thread sealant to orifice (20) VAG USA, LLC and thread into cover.
  • Page 19 This page intentionally left blank.

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