Maintenance instructions, Servicing the first and second check valves – Ames Fire & Waterworks 200B Bronze Double Check Valve Assemblies User Manual
Page 3

Seat O-ring
Disc Screw
Reinforcement Ring
Seat
Disc Washer
Disc Rubber
Disc Holder
Cover
Cover O-Ring
Spring
Body
3
Servicing the First and Second Check Valves
WARNING
!
Depressurize the valve before servicing.
Maintenance Instructions
1. Close shutoff valves up and downstream of the valve.
2. Using an appropriate sized wrench, loosen the check valve
cover. Unscrew the check valve cover and lift off.
3. Remove spring.
4. Lift out disc holder assembly from body of valve.
5. To reverse the seat disc, unscrew disc screw and disassemble
disc washer and disc rubber from disc holder assembly. Reverse
rubber so opposite face is showing. Assemble disc screw
through disc washer and rubber and screw into disc holder.
6. To replace seat module, pull out of body by gripping at reinforce-
ment ring. Replace seat module with new component by placing
into body seat bore. Tightening cover will engage seat properly.
7. Insert disc holder assembly back into seat module.
8. Replace spring insuring that it seats properly on disc holder.
9. Place cover onto spring with internal guide on cover positioned
inside end coil.
10. Screw cover onto valve body.
11. Tighten cover wrench tight.
10. Open shutoff valves.
For repair kits and parts, refer to our Backflow
Prevention Products Repair Kits & Service Parts price list
PL-A-RP-BPD found on
www.amesfirewater.com.
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