Thanks codeeng, not clear from the original posting but this request refers to a previous system that would like to be re-rated from 90barg to 100barg. The original hydrotest was 135barg allowing the 90barg design pressure, so what is gained by carrying out a 110barg pneumatic test over the...
Section 345 in ASME B31.3 appears to allow the substitution of a 1.5 hydrostatic strength test by a 1.1 pneumatic test if the "hydro" is deemed impracticable. Assistance is required on the interpretation of this section. I have a system that would require a hydrotest of 150barg and would...
