We had a similar problem with a recycle gas compressor. The approach we took was:
1. Established that the compressor could operate at the head and flow at the lower suction pressure. Note that the curves are typically shown in 'actual' versus 'standard' units.
2. In our case the desired...
Thanks for the response,
In answer to the question, yes the crack formed in the 3/4" stub pipe, not in the flange.
To avoid recurrence in the future we are intenting to fabricate a clamp to support the stub from the pipe.
My concern was more related to other stub connections - we intend to...
We have recently had a fatigue-related failure of a 3/4" ANSI 1500# pressure gauge tapping on the discharge pipework of a centrifugal gas compressor. The tapping point was a simple stub with a flanged ball valve attached and was alongside 2 other pressure tappings and three 1 1/2" thermowell...
