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INSTALLATION, OPERATION AND MAINTENANCE
VSI AWWA C508 RUBBER FLAPPER CHECK VALVE

© 2014 VSI Waterworks LLC

VRSG-3

02-16

3

INSTRUCTIONS:

These instructions are for the AWWA C508 Rubber Flapper Check Valves and who will be 

responsible for the installation, operation and maintenance of the valves.

SAFETY MESSAGES:

All Safety messages in this manual are flagged with an exclamation symbol and the word 

Danger, Caution or Warning. These messages indicate procedures that must be followed 

exactly to avoid equipment damage, personal injury or death.

 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 material, also handle valves that 

have been removed from service with suitable protection from any potential pipeline material 

in the valve.

INSPECTION:

Your AWWA C508 Rubber Flapper Check Valve has been packaged to provide protection during 

shipping. However, it is still possible to be damaged during shipping. Please inspect the unit for 

damage upon arrival and file a claim if damage is apparent.

PARTS:

Order parts from your Valve Solutions Inc. sales representative. Please include the serial 

number, located on the valve tag, when ordering parts.

 WARNING!

Read all applicable instructions and directions prior to any maintenance, installation or 

troubleshooting.

Содержание AWWA C508 Series

Страница 1: ...VSI Waterworks 2 48 AWWA C508 RUBBER FLAPPER CHECK VALVE Publication VRSG 3 FEB 2016 INSTALLATION OPERATION AND MAINTENANCE MANUAL VSI AWWA C508 RUBBER FLAPPER CHECK VALVE...

Страница 2: ...PER CHECK VALVE VRSG 3 02 16 2014 VSI Waterworks LLC 2 TABLE OF CONTENTS INSTRUCTIONS 3 SAFETY MESSAGES 3 GENERAL 4 UNLOADING 4 INSPECTION PRIOR TO INSTALLATION 4 STORAGE 4 INSTALLATION 4 INSPECTION A...

Страница 3: ...stantly alert to potential emissions of pipeline material and take appropriate safety precautions Always wear suitable protection when dealing with hazardous pipeline material also handle valves that...

Страница 4: ...recommendations is likely to result in damage to the valve SECTION 3 INSPECTION PRIOR TO INSTALLATION Rubber Flapper Swing Check Valves should be inspected at the time of receipt for damage in shipme...

Страница 5: ...hydrostatically test newly installed piping sections including Valves at some pressure above the system design pressure The test pressure should not exceed the rated working pressure of the Valve Afte...

Страница 6: ...e at all joints connections and areas of seals If leakage is observed all defective O rings seals gaskets or end connection sealing members should be replaced If the leakage cannot be corrected immedi...

Страница 7: ...ld be recorded SECTION 7 REPAIRS Leakage broken parts hard operation and other major defects should be corrected by a repair crew as soon as possible after the defect has been reported If repairs are...

Страница 8: ...n out debris Leakage between the body and cover of the valve Bolts and nuts may be loose or tightened irregularly Loosen then retighten bolts and nuts evenly Cover Gasket may be damaged Follow instruc...

Страница 9: ...isassembly and Reassembly 1 Shut off line flow fully 2 Screw backflush attachment fully inward by rotating in a clockwise direction to equalize pressure across valve 3 Loosen and remove the entire bac...

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