Valves should be inspected for tight shutoff.
Piping should be checked for corrosion and leakage at all joints. Ultrasonic
testing and hammer sounding are good methods of pipe inspection. Elbows and
sharp bends are susceptible to erosion and should be examined for indications
of thin walls and holes. Coolers should be inspected in the same manner as that
described for heat exchangers in API RP 572.
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