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1930. Trane Vacuum Steam System-help-need valve replacement
fortguy85
Member Posts: 7
Any leads on replacement valves for the Trane 1930 vacuum steam system? They are straight/globe 3/4 inch union x, 3/4 male. Luckily, the traps are made down the street from me in Randolph MA but we just can't find the valves. We want to make this system work.....
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Comments
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Tunstall?fortguy85 said:Luckily, the traps are made down the street from me in Randolph MA but we just can't find the valves....
All Steamed Up, Inc.
Towson, MD, USA
Steam, Vapor & Hot-Water Heating Specialists
Oil & Gas Burner Service
Consulting0 -
They are straight plumbed in line or 90 degree angle valves?0
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If you can't find the originals or an exact replacement, and the valves are directly connected to the radiators, you ma have to install new valves -- which means new spuds. A pain, but doable.
However, do not despair. First, try local or more distant junkyards and the like -- you may bet lucky and find some. Second, research what is wrong -- if anything -- with your existing valves. Some, like the similar Hoffman 7s, are quite repairable with some thought and care.
Third... you don't have to have the original valves to make a vapour system work, particularly if you still have the traps and they work. You can substitute a regular radiator valve for them, and it will work just fine.Br. Jamie, osb
Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England0 -
Mepco makes an orificed valve that can be adjusted to the need of each radiator.
See enclosure.
JakeSteam: The Perfect Fluid for Heating and Some of the Problems
by Jacob (Jake) Myron0 -
It is straight plumbed.....the difficulty is that it is union on bottom 3/4. and male 3/4 at top0
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this is awesome advice, was about to despair, we want keep this trane running and solved the trap issues, now its the valves0
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@fortguy85
If you can't find the exact valves you can find something to replace them with. What's wrong with the valves? Packing nut leaking or union leaking?0 -
packing nut leaking0
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@fortguy85: Please post a picture or two of your problem valve. We might be able to advise you better.All Steamed Up, Inc.
"Reducing our country's energy consumption, one system at a time"
Steam, Vapor & Hot-Water Heating Specialists
Oil & Gas Burner Service
Baltimore, MD (USA) and consulting anywhere.
https://heatinghelp.com/find-a-contractor/detail/all-steamed-up-inc0 -
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my heating guy has the valve trying to troubleshoot a match, will post a pic this week, the problem is finding one that has the union 3/4 as the inlet, a 3/4 male output...almost impossible to find0
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@fortguy85
If the packing nut is still good you can probably repack the valve stem unless it is really steam worn.
As far as replacement you won't likely find valves where the unions will match anyhow. So put new valves and unions in if you have to.
According to your post the union is on the valve inlet ...that is unusual but it doesn't have to stay that way0 -
I will suggest that to my steam guy....
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this is the crazy valve holding my extensive train system together
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And it's leaking from? The stem? I'd be surprised if that weren't repairable...
And it looks to me -- I could be mistaken -- that the connection to the right -- to the radiator -- is a union.Br. Jamie, osb
Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England1 -
All Steamed Up, Inc.
"Reducing our country's energy consumption, one system at a time"
Steam, Vapor & Hot-Water Heating Specialists
Oil & Gas Burner Service
Baltimore, MD (USA) and consulting anywhere.
https://heatinghelp.com/find-a-contractor/detail/all-steamed-up-inc1 -
So it is a triple spiral to get the rise in less than a turn.
Couldn't you drill out the stud and tap it and replace with a stainless screw if the stud breaks on the old design?0
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