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Author:
ericsarratt (NC)
I was told these were probably brass gas valves by a bronze foundry (I was trying to find the manufacturer). Can anyone confirm?
I thought they were bronze boat seacocks (seawater in/out valves), but nobody on the sailing forums had seen them before. They came on my boat.
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Author:
bernabeu (SC)
i would place my bet on:
ground seat gas cock
my guess as to why they were used:
by removing the bottom tension nut the 'guts' are removeable for service/greasing also allowing clearance for the valve to be removed
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"Measure Twice & Cut Once" - Retired U.A. Local 1 & 638
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Author:
packy (MA)
they are water valves not gas valves.
mueller was one manufacturer and another was red head.
this is a picture of a similar one.
[muellercompany.com]
gas valves are required to have a double nut on the bottom and a 'stop' position.
also the little round bump on the side is where a hole would have been drilled for self draining valves.
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Author:
bernabeu (SC)
I stand most humbly corrected by the master.
reason(s) for use remain the same
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"Measure Twice & Cut Once" - Retired U.A. Local 1 & 638
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Author:
steve (CA)
I say gas. Mueller, Apollo, AY McDonald and other companies manufacture and sell gas cocks with a staked single nut. The rotation stop was accomplished with a recess in the top rim of the body and a pin extending out from the plug, under the handle.
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Author:
ericsarratt (NC)
Thank you for your help. I see the similarities to the water and gas valves.
So, it is also highly likely that they are brass?
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Author:
packy (MA)
yes.. they are 100% solid lead bearing brass.
by the way.. if you turn them and they leak, it is an easy fix.
loosen the nut on the bottom, leave it in place to protect the male threads, tap gently on the bottom and once the stem is loosened, remove the nut and slide the cone shaped stem out of the valve body.
you can now clean the stem and the valve body, apply some silicone grease to the stem and push it back in.
tighten the nut on the bottom until it becomes harder to rotate the handle/stem.
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Author:
bernabeu (SC)
actually they are an alloy of Bronze
a brass valve would cause galvanic corrosion on steel pipe just like a brass fitting
'brass' valves are actually a special bronze alloy
@ packy: you are STILL the master
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==============================================
"Measure Twice & Cut Once" - Retired U.A. Local 1 & 638
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Author:
Mr tee (MT)
I know them generically as "plug valves" and they have been used for both gas and water. As stated above they can be disassembled, cleaned, greased, reassembled and put back in operation. This type of valve dates way, way back in history.
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