Question about pipe fitting wall thickness grades?

2009-04-20View Original

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GB/T 14626-93: Steel threaded fittings. Why do elbow and tee fittings come in three wall thickness series – SCH80, SCH160, and XXS – while pipe clamps and end caps do not have the SCH80 option? I also have another question: In both GB/T 12459 and GB/T 14383, there are no elbows of the DN50X15 size. What is the reason for this? What should be taken into account when manufacturing such non-standard components?

Reply #22009-04-20

There must be no market demand for it!

Reply #32009-04-20

I have seen some elbow fittings whose dimensions exceed the GB12459 standards, yet their length is much shorter than the specified standard length; I’m not sure what causes this

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Question about pipe fitting wall thickness grades?

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