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Thread: Front seating service valves
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12-07-2009, 02:27 PM #1
Front seating service valves
G'day,
I've seen references to front seating service valves having O-rings. I thought they were just mechanical, metal to metal. I've come across a few leakers, but able to tighten and repair. Also, I came across one that I couldn't get my gauge hose on, because it was too close to other tube. I literally ground-off part of my knurled nut and was successful. All in a day. Please, respond.
Wally
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12-07-2009, 09:36 PM #2
Re: Front seating service valves
Hi Wally.
The majority of service valves I have come across have a gland seal that is tightend around the stem to seal it.
You can slacken the gland off and tighten it up to seal the stem to the body. I have never come across O ring seals or metal on metal. I'm not saying that they don't excist but I do not recall ever seeing anything other than the gland seal type.
taz.
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