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Recent content by Inspector67
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Required Examination of PTFE Lined Steel Pipe with Tell-tale Holes
We are performing a 450# hydrotest with the PTFE installed in the steel pipe. I doubt the PTFE liner could handle the pressure alone. I agree the tell-tale is irrelevant. I did find in B31.3 Chapter VII A300 (d) does state metallic piping that provides the pressure containment shall conform to...- Inspector67
- Post #4
- Forum: Pipelines, Piping and Fluid Mechanics engineering
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Required Examination of PTFE Lined Steel Pipe with Tell-tale Holes
ASME B31.3 like other codes sometimes cannot be straight forward. We are fabricating (welding) steel pipe with a PTFE liner. The steel pipe will have a tell-take hole to indicate if there is a breach in the PTFE liner. I believe this is still consider Normal Fluid service requiring 5%...- Inspector67
- Thread
- Replies: 13
- Forum: Pipelines, Piping and Fluid Mechanics engineering
