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Author:
sloopguy (PA)
What is the standard height for a steam valve and steam radiators? Is there such a thing? I'm remodeling an eight room home with a gas one pipe steam system. It has one radiator per room. I noticed that 2 upstairs bedrooms have radiators that are up on chunks of wood as much as 2 inches. It looks like one has had it's legs shortened and possibly the 2nd one as well. I can lower the valve with a bunch of work and some fittings or I can search for a radiator whose spud nipple has the same center height as my valve. The steam risers going to the second floor radiators have dog legs (using 2-45's and a short nipple) just below the first floor ceiling. It is here where I could smash out a 45 and change the nipple going to the second floor radiator to make the valve height match a very very short leg radiator. or am I better off looking for radiators to meet the current valve height? Thanks for the help!!~
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Author:
bernabeu (SC)
The radiator MUST be 'back pitched' downward towards the valve, sometimes done using wood blocks, sometimes by 'shaving' the legs on the valve end.
new construction would leave a capped 'stub' sticking upward through the floor
the stub would be unscrewed and cut to final length to install valve AFTER radiator is placed
1 - flooring
2 - radiator
3 - 'finish' piping
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"Measure Twice & Cut Once" - Retired U.A. Local 1 & 638
Edited 1 times.
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Author:
Paul48 (CT)
You must also be careful to maintain the pitch of the run-out to the radiator. Any improper pitch issues will hold condensate, and you will have a symphony that sounds like someone banging your pipes with a hammer.
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Author:
sloopguy (PA)
The issue is not the pitch. The radiator is lifted on blocks nearly two inches at the connection end.
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Author:
bernabeu (SC)
then you will need to change the last piece of vertical pipe
or
install shag carpeting
==============================================
"Measure Twice & Cut Once" - Retired U.A. Local 1 & 638
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