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    Valve Actuators (4 Posts)

  • Alan (California Radiant) Forbes Alan (California Radiant) Forbes January 15, 2012 @ 6:00 PM
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    Valve Actuators

    These valve actuators were originally available through Thermalese.  Does anyone know a source for replacements?
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  • Alan (California Radiant) Forbes Alan (California Radiant) Forbes January 16, 2012 @ 11:11 AM
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    Anyone?

    .
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  • hot rod hot rod January 16, 2012 @ 3:15 PM
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    looks a lot like

    an earlier Wirsbo model, also. The challange if finding a replacement with the correct pin stroke. Then threads are all common, but the wrong pin dimension can hold the valve open, or not allow it to stroke enough to fully open.

    hr
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  • tim smith tim smith January 17, 2012 @ 9:40 AM
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    I remember those damn things

    Wirsbo had lots of problems with telestats back about 18 yrs ago. They made 3 mods until they got one that the wire on the heat motor would not break from a bad solder joint.  I am pretty sure the Wirsbo non heat motor telestat will fit right on there. You also adjust the pin position by rotating knurl nut until pointer lines up with green dot. Still available. Good luck
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