Please tell me about polytetrafluoroethylene gaskets
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In Appendix A of HG/T20614-2009, the maximum operating temperature of PTFE plates is -50 to +100°C, as shown in the figure below: However, in the usage conditions of non-metallic flat gaskets in SH/T3401-2013, the maximum continuous use temperature of PTFE plates is 150°C, as shown in the figure below.: How do you understand it and which requirement should it be used?
Isn’t it true that the higher the pressure, the lower the operating temperature? Why does PN20 have a higher temperature?
Technology is advancing. The previous version is old.
At 150 degrees, performance should drop drastically.
I wonder if any experts can give me a clear explanation.
The maximum pressure in the first picture is 160 kilograms, and the maximum pressure in the second picture is 20 kilograms.
Isn’t PN16 16kg?
She is already in 3rd grade and still weighs 160kg;P
It doesn't matter if these two are independent, just use whichever flange you choose.