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AS ME 31.3 doesnot specify any requirement for pneumatic leaak test after hydrotest. However, it is a regular practice in offshore modules as manpower are twice as costly at offshore than onshore + logictics. Most of the offshore client want pneumatic testing done prior to dispatch . General pratice is to do at 3.5 to 4 bar with air , however it is up to to client to specify their requirements.
Hence please do as requested by client. They need to make sure the pipes are tighten and should not leak during commissioning . Good for your company as it will avoid any back charge from client.
Ask for their spec as it is more of a contractual matter than technical.
regards
Chandra
+61422812970
Hi there,
Construction Code: ASME B31.3
We have assemble a module for an offshore rig. The clients
wants to do a Pneumatic leak test on the whole assembly of pipings. The pipes
spools are somehow connected to each other and have been hydrostatic tested on
different pressure. Now since the assembly have different test pressure
as per design, do we have to do the pneumatic test taking the least test
pressure?
Please give me a reference from the code.
Many thanks,
Larry
Zarate
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Chandra Bhusan Tripathi
23 Beckett Circle
Perth, WA
Australia
M +61422812970
H +61862012197
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The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
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