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Thermostatic radiator valves

PMyers Member Posts: 6
I know I have seen it before, but what is the best way to install a TRV, maybe a Danfoss, on a section of hot water baseboard?


  • steve_63
    steve_63 Member Posts: 1
    another trv question

    I also want to install TRV's in my fin tube baseboards.

    I installed a Braukmann TRV years ago, in a Slant/Fin 30 baseboard, using a straight valve (threaded connections) with an actuator inside the baseboard enclosure, connected via a capillary to a remote sensor/temperature dial. This setup has worked well.

    I want to install more trv's now, but this time I want to use direct mounted actuators that will protrude horizontally through a hole in the baseboard faceplate. I assume that this is an ok arrangement since the sensor will not be in the path of the heated air or see direct radiation from the piping.

    I am tempted to use sweat connection straight valves, rather than valves with threaded connections since the baseboard plumbing is all 3/4" copper, and a sweat connection would be easier and quicker. My question is: are the valve bodies very sensitive to overheating? I've ruined a valve or two in the past by overheating while soldering. In the long run it would be cheaper for me to hassle with threaded connections and adaptors than to leave behind a series of damaged valves.
  • bb_3
    bb_3 Member Posts: 9


    Danfoss has a 3/4" solder union valve body. The valve is not harmed by heat since the tailpieces are soldered on w/o the valve body, so you can't overheat the valve body.

  • steve_64
    steve_64 Member Posts: 1

    thank you. I'll check out the Danfoss valves.
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