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  1. msg12

    Liquid Thermal Expansion

    My application is a direct fired heater in a hot oil system which has a PSV on the outlet of the heater coils for thermal expansion due to blocked in coils. I would use the API 521 4.4.12.3 (6th ed) equation for liquid thermal expansion (Q=BH/500GC) to size the PSV; however, my contractor is...

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