Reply To: T&P relief valve discharge line pressures

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10 Feb 2002 at 8:29 pm #292124
Avatar photoRobert Stephen Morton
Participant

    Jerry. Curious non plumber. The pressure at the Inlet of the pressure relief valve is 150PSI not the outlet. Te relief valve opens at 150psi & relieves the pressure. The relief valve drain is to drain undiminished & without any restrictions. If there were any restrictions, then the pressure at the outlet might be 150psi.
    Bob

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