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Herz TRV

Alan (California Radiant) Forbes
Alan (California Radiant) Forbes Member Posts: 4,171
in THE MAIN WALL
I'm having trouble finding a replacement for this TRV.  It's coming off a valve controlling a towel warmer we installed about 14 years ago



In the photo below, it's the one on top.  The one at the bottom is a Herz valve that is used on Myson T6 radiators that I thought might work, but doesn't.  I also bought a second Herz valve, model 1 7260 98 that does not work.



Any help identifying this valve is appreciated.
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

Comments

  • kcopp
    kcopp Member Posts: 4,462
    looks like the....

    taco ones they had a while back. I still have them in my garage...waiting. Maybe a closer look?
  • Steamhead
    Steamhead Member Posts: 17,216
    Try Tunstall

    I think they can match almost anything.



    www.tunstall-inc.com
    All Steamed Up, Inc.
    Towson, MD, USA
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
    Consulting
  • Paul Pollets
    Paul Pollets Member Posts: 3,661
    TRV head

    The ring-type head is the Oventrop  LH style (top)



    The lower head is the Oventrop XH style which will fit on all Buderus wall panel rads.
  • Alan (California Radiant) Forbes
    Alan (California Radiant) Forbes Member Posts: 4,171
    TRV

    So Tunstall and Oventrop threads will match Herz.  I thought they were proprietary and everyone had their own size and thread count.
    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
This discussion has been closed.

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