Alignment errors
Typical contamination failure Short Stub
Typical contamination failure Pipe not cut square
Short stub: can result from Improper insertion of the pipe or movement during weld due to incorrect clamping.
Pipe not cut square.
Typical contamination failure Movement during weld cycle
Typical contamination failure Excessive gap
Pipe movement during weld cycle: due to external forces or forces induced by the welding process, when the pipes are not clamped properly.
Excessive gap: excessive gap between pipe and fitting due to pipe out of roundness, undersized pipe or over scraping of pipe surface.
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