Runtal BB questions

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GW
GW Posts: 5,259
in THE MAIN WALL

Gottta job where i am trying to get all the ducks lined up, one trip hopefully.

Are most guys using the shut offs or no?

If Yes- are you simply exposing them?

The 'covers' wont work if I get the shut offs, correct or incorrect?

Thanks

Runtal accessories.png
Gary Wilson
Wilson Services, Inc
Northampton, MA
gary@wilsonph.com

Comments

  • tcovert83
    tcovert83 Posts: 52

    I had a Runtal baseboard installed in my home recently (14ft long, 4 panels high). We used the Runtal shut-off valves (they are actually manufactured by Oventrop, see below), and I was surprised to find out that these have a fairly large pressure loss, even when fully open. The spec sheet shows a Kv of 1.7, which is a Cv of 1.97. If you are installing in a system that will have high head to begin with, this probably doesn't matter, but in my gravity conversion system it is a problem that I'm still trying to fix…

    GW
  • Alan (California Radiant) Forbes
    Alan (California Radiant) Forbes Posts: 4,889

    I like using shutoffs. Unfortunately, you can't get these Ballofix angle valves/unions here anymore. Runtal has or had larger end covers that would hide the valves and piping.

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    8.33 lbs./gal. x 60 min./hr. x 20°ΔT = 10,000 BTU's/hour

    Two btu per sq ft for degree difference for a slab
    GW
  • GW
    GW Posts: 5,259

    Alan looks nice!

    Gary Wilson
    Wilson Services, Inc
    Northampton, MA
    gary@wilsonph.com
  • GGross
    GGross Posts: 2,099

    If I am not mistaken these valves. the "pipe cover straight valves" are designed to fit inside of the pipe covers

    https://runtalnorthamerica.com/product/pipe-cover-straight/

  • EdTheHeaterMan
    EdTheHeaterMan Posts: 12,911

    the person who installed this one:

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    does not understand how there radiators work. What ever the BTU per lineal foot rating on the spec sheet says… multiply times 0.35 and your might be close to what that radiator is providing.

    Edward Young Retired

    After you make that expensive repair and you still have the same problem, What will you check next?

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