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Thread: Anti Vac Valve

  1. #1
    Senior Member
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    Jan 2010
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    Anti Vac Valve

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    After replacing a anti vac valve should there be any noise or fissing at all once the valve cuts off or what is the norm for this, there seems to be a little fissing noise going on just wondering if that was normal.

  2. #2
    Senior Member
    Join Date
    Mar 2011
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    609
    There should be absolutely no hiss or fizzing from the anti vac valve. If there still is anything like that, you need to re-replace

  3. #3
    Senior Member artman's Avatar
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    Jun 2006
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    2,434
    Behmor Brazen - $249 - Free Freight
    Once they pop shot when the boiler reaches pressure they make no noise (perhaps a bit of water droplets boiling off for a few seconds).

    Maybe there is a bit of crud caught in the seal or the seal between the valve/boiler is leaking. If you can fire up machine while looking at the valve it should be obvious where it's coming from. Beware live power etc etc.

    Cheers



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