How does the M thread ensure the sealing of the instrument?

2016-07-09View Original

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How does the M thread ensure the sealing of the instrument? For example: the pressure gauge interface has M20X1.5, and the transmitter wiring interface also has M20X1.5

Reply #22016-07-09

Sealed by gaskets; threads do not provide sealing

Reply #32016-07-09

This type of thread can only be sealed with gaskets; using PTFE tape around the threads will not work.

Reply #42016-07-09

Here are the names of several standards related to pressure gauges: GB/T 3751-2008 Couplings for cartridge-type pressure gauges; GB/T 1226-2010 General requirements for pressure gauges. These standards can be downloaded by searching for them on Haichuan or Baidu.

Reply #52016-07-11

I think if the matching threads can be tightened all the way, then sealing can be achieved with gaskets; if they can’t be tightened all the way, it’s better to wrap some Teflon tape around them for sealing

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How does the M thread ensure the sealing of the instrument?

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