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INSTALLATION, OPERATION AND
MAINTENANCE MANUAL
Figure 250-DOC Drawing C-1448
42"-60" Oil-Cushioned
Lever & Weight Swing Check Valves
TABLE OF CONTENTS
Introduction .................................. 1
Description of Operation
................. 1
Receiving & Storage ....................... 1
Installation ..................................... 1
Valve Construction ......................... 2
Start-Up ........................................ 2
Preventive Maintenance .................. 2
Trouble Shooting ........................... 2
Disassembly .................................. 2
Assembly ...................................... 3
Warranty ....................................... 3
Parts List ...................................... 4
Assembly Drawing/Parts Location
.... 5
234 Clay Avenue • Mars, PA 16046 USA
Telephone (724) 776-1020 • Fax (724) 776-1254
E-mail:
info-ga@vag-group.com
Manual Number 250OC-IOM-070722
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Summary of Contents for Vag GA INDUSTRIES 250-DOC
- Page 1 Trouble Shooting ...…………………… 2 Disassembly ..………………………… 2 Assembly ..……………………………. 3 Warranty .……………………………….. 3 Parts List ……………………………….. 4 Assembly Drawing/Parts Location ..5 234 Clay Avenue • Mars, PA 16046 USA Telephone (724) 776-1020 • Fax (724) 776-1254 E-mail: info-ga@vag-group.com Manual Number 250OC-IOM-070722...
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Page 2: Description Of Operation
INSTALLATION, OPERATION and MAINTENANCE 42”-60” Figure 250-DOC Oil-Cushioned Lever & Weight Swing Check INTRODUCTION This manual will provide the information to properly Prior to installation ensure all debris, packing material install, operate and maintain the valve to ensure a or other foreign material has been removed from both long service life. -
Page 3: Valve Construction
VALVE CONSTRUCTION for cushioning. This may occur when a VFD ramps The standard Figure 250-DOC Swing Check Valve down or the pump/motor has high inertia with a has a cast iron or ductile iron body, bolted steel cover, prolonged coast down. stainless steel body seat, stainless steel hinge shaft and cast iron disc with a rubber disc seat. -
Page 4: Replacement Parts
Genuine replacement parts are available from your (12), remove the gib head keys (49) and pull local VAG/GA Industries representative or from the the shaft (11) out of the valve. It may be factory:... - Page 5 Part No. Part Name Std. Material Part No. Part Name Std. Material Body Ductile Iron Disc Guide Screws Zinc Plated Steel Body Seat 316SS** Disc Arm Cotter Pin Stainless Steel Disc Ductile Iron Disc Arm Washer Stainless Steel Disc Clevis Pin 303SS Shock Absorber EGD SS22-41...