Three Way Refuelling Valve Seal Replacement - Old
Model -Brass
Three Way Refuelling Valve Seal Replacement - Old Model -
Brass
This valve was superseded by a new, improved valve in 2008. Please see
Compac technical bulletin CTB10015 for more information.
Before you start
Obtain the following replacement parts and equipment:
Seal Kit Part Number is FC-SK-0008 or FC-SK-0009
6 x ARP O-rings (Shore Nitrile 90).
1 x Ball Shaft Seal.
1 x Teflon Back Up Washer.
1 x Teflon Back Up Seal.
1 x Ball Seal.
1 x Nitrided ball ( FC-SK-0009 kit only)
Remove the Three Way Valve Seals.
Take care when disassembling the valve, as a lot of parts look similar.
De-pressurise the valve and remove it from the hose assembly.
Disassemble 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.
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.
Install New Three way Valve Seals
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.
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.
Insert the handle shaft into the valve body from the bottom.
Insert the ball shaft into the valve body from the bottom.
Ensure that the slotted handle shaft and ball shaft engage.
Insert the ball shaft seals in both sides of valve body.
Insert the ball shaft retainers in either side of the valve body until the retainer
face meets with body of the valve.
Place the handle on the handle shaft and screw in the grub screw to lock it in
place.
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