Gate valve glands

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Is it possible to renew the gland packing on gate valves without draining down? If so, how?

TIA
 
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Undo the gland nut, loosely wind about 5-6 turns of twisted PTFE tape and replace the gland nut.

VERY gently increase the tightness of the nut until it can just be felt to be making the spindle a little harder to turn and then that's probably about right.

The same repair can be done to a stopcock. But many of those are very old and worn and corroded and better replaced.

Tony
 
I have to been called out to many emergency's where there was a leaking gate valve or stopcock and I have done what Tony has said above. Normally the customer get the hump due to the job taking all of 5 minutes.

Andy
 
Many thanks for the prompt replies. I assume the PTFE tape is around the shaft as a gland and not the nut.
 
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Many thanks for the prompt replies. I assume the PTFE tape is around the shaft as a gland and not the nut.

As Tony said undo the gate valve and apply ptfe around the tread, It does take guts to do because if it is undone too much then it's splashy splashy time.

Andy
 

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