Three Way Refuelling Valve Seal Replacement
Three Way Refuelling Valve Seal Replacement
Before you start
Obtain the following replacement parts and equipment:
Seal Kit Part Number is FC-SK-0049
Three way valve ball spindle is FC-SVK-0002 (optional)
Take care when disassembling the valve, as a lot of parts look similar.
1. De-pressurise the unit and remove the valve from the hose assembly.
2. Dis-assemble the valve, as per the figure on the next page.
Clean all components with a clean dry lint free rag.
O-rings that are subjected to Natural Gas at high pressure. Swell
when exposed to air. Once swollen they must be replaced.
3. Blow compressed air (100 psi) through all ports to remove any impurities that
may damage the seals in operation.
Wear appropriate safety eye wear when using compressed air.
Remove the three way valve seals.
1. Cut the handle shaft back-up ring on an angle so it can be fitted onto the shaft
Check that the back-up rings are free of burrs and sharp edge.
2. Position the seals in the appropriate slots on the handle shaft.
O-rings that are subjected to Natural Gas at high pressure. Swell
when exposed to air. Once swollen they must be replaced.
3. Insert the handle shaft into the valve body from the bottom.
4. Insert the ball shaft into the valve body from the bottom.
Note: Ensure that the slotted handle shaft and ball shaft engage.
5. Insert the ball shaft seals in both sides of valve body.
6. Screw the ball shaft retainers into either side of the valve body hand tight.
7. Use a torque wrench to tighten the retainer to 25ft/lb / 34Nm
8. Place the handle on the handle shaft and screw in the grub screw to lock it in
place.
To Next Page
Loading...
Need help?
General
