When pneumatic testing goes wrong
Posted 27 May 2011 - 12:08 PM
Wepp_2.pdf 766.07K 60 downloads
Posted 27 May 2011 - 12:12 PM
Posted 27 May 2011 - 01:05 PM
I had to send him a copy of this. Boom!
Looks like it failed above the weld. Weird spot for a failure. The pipe looks like cast metal, which can crack if not welded properly. Or maybe it just had a crack there to begin with.
Posted 27 May 2011 - 01:08 PM
This failure happened last weekend. A GE compressor package was under nitrogen pressure test. You can see the pipe had a brittle fracture failure. I have no other details at this time. This is another illustration of the potential hazards of pneumatic testing. This is for the expansion of the West-East Gas Pipeline project for PetroChina. It is China's longest natural gas pipeline at 2500 miles (4000 km).
Posted 27 May 2011 - 02:51 PM
Posted 28 May 2011 - 04:21 AM
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