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NPTF Class 2 & NPTF Class 1

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sw23cyp

sw23cyp

Mechanical
Aug 31, 2011
27
Is the only difference between NPTF Class 1 and NPTF Class 2 the inspection requirement of the crest and root truncation? Can NPTF Class 2 and NPTF Class 1 threads be used together without concern for leakage?
 
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