What type of gasket gives the best sealing effect for thermocouples with an M27X2 interface?
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We used red copper in the past, but for the nozzles on certain towers where the sealing surfaces are damaged, the sealing effect is poor and leaks occur easily. Does anyone have any good gasket recommendations? Thank you
We also used 2 thick-grade copper gaskets; we heated them before use, and they seemed fine. As long as they are installed properly without being offset, that’s okay. Also, make sure to tighten them again after the machine starts operating. .
If contamination is a concern, try using metal-wrapped graphite.
The material and type of gasket should be selected based on various factors such as temperature, pressure, and the medium at the location where it will be used.
Get hot and tight after driving? ? ? ? It should not be allowed; heat tightening refers to tightening the bolts after heating, and there is usually pressure inside the vehicle once it is in operation, so it is not permissible to have the bolts tightened under such pressure
Reply to 5# ROSEHOOD: We usually use threaded connections. Heat tightening is something that needs to be done frequently, for example after replacing orifice plates or adjusting valve gaskets. During system operation, it is common to heat-tighten the gaskets; this is something that is done frequently, and I’m not sure whether it constitutes a violation or not. It should be normal, I don’t know if others do it or not.
To distinguish the properties of media such as temperature and corrosivity, we generally use PTFE, graphite, and red copper. However, red copper must be annealed before use.
High-temperature equipment must be heat-tightened twice. The choice of gaskets depends on the temperature and pressure of the process medium. Copper gaskets must be annealed and then allowed to cool naturally before being used; they can be heat-tightened
We also use copper gaskets after annealing; for the nozzles on the towers, if the sealing surfaces are damaged, we replace those nozzles
Reply to 1# liwei2002: Sealing gel is usually included; adding a little will provide excellent leak prevention
Reply to 9# haichuan8: It must be difficult to replace the nozzle of the tower, right? Were no stainless steel wound gaskets used?