Gate valve repair


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Old 02-18-07, 06:42 PM
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Gate valve repair

The main water shutoff on my 20-year old house is a 1-inch brass gate valve. It is marked with a single "N" on the valve body. Do you know who is this manufacturer from about 20 years ago? If I buy a new gate valve from this manufacturer "N", can I just install the new gate and stem into the old valve body? I want to try avoid replacing the entire valve body if possible. Thanks.
 
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Old 02-18-07, 07:14 PM
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I don't know what the "N" signifies but even if you had a brand-new valve from the time the original was installed a mere changing of the internal parts would probably leak.

Bite the bullet and install a new valve. I recommend a ball valve.
 
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Old 02-19-07, 11:38 AM
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Gate valve

Agree with furd, just replace it with a ball valve, you don't know how much a pain in the azz trying to repair a gate valve is; plus they are inferior to the ball valve. Lots of luck.

.................................................
"If all else fails, read the directions"
 
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Old 02-19-07, 03:38 PM
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After thinking about it for a while I think the "N" may stand for Nibco, a manufacturer of copper and brass fittings and valves.
 
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Old 02-19-07, 03:55 PM
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You can't put a new gate in an old valve.
The tolerance of the sealing surfaces are so close that the valve would likely not shut off.
If you wanted to do this yourself you could likely find a 1" compression valve to replace the old one.
Be prepared to have to fiddle with it because if the line is copper it may not be perfectly round.
I would assume you will need to call your water utility to shut off your house.
 
 

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