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Thread: Pressure Cooker

  1. #1
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    Default Pressure Cooker

    Oil fired hot water boiler. Do you think it's safe to say the pressure relief valve is defective?

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    "It takes a big man to cry. It takes an even bigger man to laugh at that man". - Jack Handey

  2. #2
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    Default Re: Pressure Cooker

    Quote Originally Posted by Nick Ostrowski View Post
    Oil fired hot water boiler. Do you think it's safe to say the pressure relief valve is defective?
    Looks like about 46 psi. What is the rating on the relief valve?

    The beatings will continue until morale has improved. mgt.

  3. #3
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    Default Re: Pressure Cooker

    Quote Originally Posted by Vern Heiler View Post
    Looks like about 46 psi. What is the rating on the relief valve?

    30 PSI.

    "It takes a big man to cry. It takes an even bigger man to laugh at that man". - Jack Handey

  4. #4
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    Default Re: Pressure Cooker

    Is it a hot water or low pressure steam system?

    The beatings will continue until morale has improved. mgt.

  5. #5
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    Default Re: Pressure Cooker

    Hot water. It needs servicing.

    "It takes a big man to cry. It takes an even bigger man to laugh at that man". - Jack Handey

  6. #6
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    Default Re: Pressure Cooker

    Definately time to get it checked out but I think I have seen more non operational pressure gauges than relief valves.

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  7. #7
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    Default Re: Pressure Cooker

    You can attach your std. hose thread water pressure gauge at the boiler drain and compare with the tricator gauge. If the gauge is correct at 46 psi, then you have two problems: bad pressure relief valve and overfilling the system. If there is an automatic fill valve, then that valve may be defective or someone may have bypassed it.

    If the boiler pressure is where it should be then of course, the tricator gauge needs to be replaced.

    I would include a recommendation as a boiler plate to the effect annual inspection/ testing and replacement of pressure relief and TPR valves should be labeled on the appliance cabinet right next to the valve.

    If there is a diaphragm expansion tank, the tank needs an isolation valve so you can test the air pressure at the Schrader valve and compare with the static system pressure. If water spits out of the Schrader, the diaphragm is blown.

    Of course, always check the rating plate to ensure the PV is per mfrs specs. Tall buildings will require a 50 psi system.

    Keep the fire in the fireplace.

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