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Thread: Thermosyphon restrictor valves

  1. #1
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    Thermosyphon restrictor valves

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    I know that Expobar and Vibiemme have a thermosyphon restrictor valve available as a spare part.

    The Expobar part looks like a lifesaver lolly and the VBM is a brass cylinder with a hole bored through. They both have the effect of reducing the opening in the grouphead supply pipe to less than or equal to 3.0mm. They reduce the thermosyphon action (and temperature) of water supplied to the grouphead. They are installed to reduce the length of cooling flushes.

    Has anyone had experience with the "before and after" performance of either add-on?

    Cheers,
    Paolo.


  2. #2
    TC
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    Re: Thermosyphon restrictor valves

    Quote Originally Posted by Paolo link=1195420431/0#0 date=1195420431
    I know that Expobar and Vibiemme have a thermosyphon restrictor valve available as a spare part.

    The Expobar part looks like a lifesaver lolly and the VBM is a brass cylinder with a hole bored through. They both have the effect of reducing the opening in the grouphead supply pipe to less than or equal to 3.0mm. They reduce the thermosyphon action (and temperature) of water supplied to the grouphead. They are installed to reduce the length of cooling flushes.

    Has anyone had experience with the "before and after" performance of either add-on?

    Cheers,
    Paolo.
    Hi Paolo,

    Restrictors are installed standard in all Aust. VBM, ECM, Expobar and most other HX machines.

    They work ;)

    Chris

  3. #3
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    Re: Thermosyphon restrictor valves

    Behmor Brazen - $249 - Free Freight
    Take care.

    there is nothing wrong with having to do cooling flushes, but it does mean a bit of water is wasted before you brew.

    If you modify a machine from the way it has been set up, this can have other effects...its the old "every action has a re action" thing.

    Fitting smaller than standard restrictor(s) will cool the group head & will indeed reduce the size of the cooling flush, but it can also result in your cooling the through put of brew water to less than optimal termperature for your coffee.

    So you can end up with something that doesnt require a cooling flush, but that may well produce under extracted, sour brew.

    Best left alone.

    If she aint broke, dont fix her!

    Regardz,
    FC.



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