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TRV's

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Brad White
Brad White Member Posts: 2,398
on where in MA. F. W.Webb are everywhere, Metropolitan Pipe in Cambridge, Robinson Supply on the south shore and coast, Salem Supply in Beverly. Beverly Supply in Salem. I just made that last one up.

Or you can write to Tunstall Associates in Chiocopee (e-mail on their web site) and find out through whom they distribute in your area.

http://www.tunstall-inc.com/inquiryform.html

Toll Free:1-800-423-5578
Tunstall Corporation - 118 Exchange Street - Chicopee, MA 01013
Phone:(413)594-8695 - Fax:(413)598-8109
"If you do not know the answer, say, "I do not know the answer", and you will be correct!"



-Ernie White, my Dad

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  • chilly
    chilly Member Posts: 43
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    TRV's where can I get them?

    I have a 1 pipe steam system and last year when it was really cold, some rooms got overly hot as the system tried to satisfy the thermostat. I have added insulation and updated some of the windows as money allows. I have read on The Wall about TRV's. I was wondering if a TRV in the overly hot rooms would keep those radiators from adding heat to those rooms and allow the cooler rooms to heat up quicker. If this is a possibility, where can I get a TRV?

    thanks for your help.
  • Brad White
    Brad White Member Posts: 2,398
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    Any good supply house

    I favor Macon Controls represented by Tunstall. Their OPSK is the model I believe, for one-pipe steam. These would be known at least by my jargon as "thermostatic vent valves" in that they go between the radiator and the air vent.

    The only two brands I have used are the Macon and Danfoss. Amaark (sp?) is another but the key feature is an integral vacuum breaker on the body. This allows the "downfire" function of the radiator air vent between cycles, that is, to let air back in so condensate can better return. If the TRV is closed, the vent is isolated from the radiator so this vacuum breaker takes over that function. Cool.
    "If you do not know the answer, say, "I do not know the answer", and you will be correct!"



    -Ernie White, my Dad
  • Mike T., Swampeast MO
    Mike T., Swampeast MO Member Posts: 6,928
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    Yes, that's a perfect application for TRVs and as you stated, there's little need for them except in rooms that tend to overheat.

    With 1-pipe steam, just make certain you get the TRV bodies made to replace the air vent.

    The internal passageways of the TRV bodies that replace a hand valve are far too small--and improperly aligned too boot--for 1-pipe steam where steam and water must pass in opposite directions.

    As Brad suggested, the 1-pipe steam TRV bodies with an integral vacuum breaker are highly recommended.
  • chilly
    chilly Member Posts: 43
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    TRV's

    I live in MA, any suggestions on a "Good Supply House"? I found the Danfoss on Pexsupply.com is that a good web site?

    again thanks for the help
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