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Thread: Pressure Relief Valves

  1. #1
    Join Date
    Jun 2003

    Pressure Relief Valves


    I currently am having a problem with some of my negative pressure relief valves failing on a couple of fermenters I have. They are Pub 7 BBL fermenterswhich are about 12 years old. The valves have a simple rubber diaphram in them which are starting to leak when I pressurize tanks for carbonation. The rubber is getting old and cracked. Does anyone recognize this type and have a contact for a supplier to replace the rubber gaskets?

    My other option is to have some fab'd I suppose.

    Valley Brewing Company
    Last edited by Valleybrew; 07-16-2010 at 02:03 PM.

  2. #2
    Join Date
    May 2005
    I'd just have them made. Try Parker seals or a reputable hydraulic/compressed air shop.

  3. #3
    Join Date
    Jun 2003
    All fixxed now....
    I went to our local rubber products supplier (Delta Rubber) and they gave me some thin gum rubber material which I used to cut my own seals out of. They leaked initially until I put a little food grade white grease on them to ensure a stick to the valve until enough pressure builds up to hold them in place.

  4. #4
    Join Date
    Apr 2004
    Hastings, MI, USA
    Got leaks too...time to find some rubber/gasket material....
    "By man's sweat and God's love, beer came into the world" -- St. Arnold of Metz

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