Half-pipe jacket hydrotest pressure?
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Is there a formula for calculating the hydrostatic test pressure for a half-pipe jacket? Is it a 1.5xPx temperature coefficient or a 1.25xPx temperature coefficient? Thank you
Semi-tube jacketed vessels also belong to multi-chamber pressure vessels; the test pressure for the two chambers is determined as 1.25 times their respective design pressures (or maximum allowable operating pressures), taking into account the ratio of allowable stresses at the test temperature and the design temperature. What is the basis for the 1.5 times figure mentioned by the original poster?
I searched through previous posts; generally, a factor of 1.5 is used, but I’m not sure if there’s any standard rule regarding this
It seems that the water pressure in pipes is usually 1.5; I’m not sure about half pipes
The hydraulic coefficient for semi-circular pipes is taken as 1.5