Answer / jitendra roul

As per ASME hydrostatic test pressure is 1.5 times of that
of Design Pressure and pneumatic test pressure is same as
design pressure.However pneumatic is highly risky, So
always preference should be given to hydro-static test
pressure.

While conducting hydrostatic testing care should be given
to vent the air trapped during water filling at the top
most point.

Answer / peds-phil

For Hydrotesting, test pressure is equivalent to 1.5 times
the vessel design operating pressure while pneumatic is
only 1.2.

Answer / vignesh.raja63

to contect the pressure vessels depends upon the capsity of
pressure of vessle

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