Coast Guard Regulations (46 CFR) regarding hydrostatic testing of main steam piping state that __________.
the hydrostatic test shall be applied from the boiler drum to the throttle valve
not less than fifty percent of the lagging shall be removed each time the hydrostatic test is applied
the hydrostatic test pressure must be maintained on the piping for a minimum of one hour
a pipe with a nominal size of six inches or more is not required to be hydrostatically tested
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