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  1. processpeeps

    Balanced Bellows for Thermal PSV?

    I'm specifying a PSV for thermal expansion case. Tailpipe will discharge downstream of a globe valve back into a header. Header pressure is 30 psig. Set pressure is 85 psig. Is a balanced bellows PSV required due to backpressure (> 10% of set pressure), or is a conventional PSV acceptable...

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