Water Valve Seal

[Black Cat]

Just received my new heater control valve and it came with a fiber gasket for the flange joint, when I removed the old one it had an ‘O’ ring sealing (Item 78 in the attached) and no gasket. Do I need the ‘O’ ring if I’m using the fiber gasket and if not should I also use some sort of gasket sealer with the fiber gasket? The old ‘O’ looks a bit shot away.

[Pete Lewis]

O ring type of olive idea is std  i feel the gasket will also seal the two flanges ok and add some sealer to make sure ,

i have when O ring is needed  cut down a slice of heater hose to make one  rimmers show them https://rimmerbros.com/Item--i-C9928A

Pete

[Black Cat]

Thanks Pete.

 

[Nick Jones]

The O- ring is used when fitting on a Vitesse or Herald which has no fixed flange on the heater pipe, just a loose flange used to squash the O-ring onto the pipe like an olive.

Nick