What material of gaskets can withstand high temperatures?
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In my company, the gasket in the air chamber of the self-acting pressure relief valve for the steam pipeline, which operates at 300 degrees Celsius and 4 kilograms of pressure, has broken down; therefore, a replacement gasket is needed. Given the high frequency of such damage, what material would make for a durable gasket? ?
Using asbestos-wrapped gaskets should be fine
Metal wound gaskets should work.
The maximum operating temperature for polytetrafluoroethylene is 120 degrees.
A metal wound gasket should work fine; if you’re really concerned, using an annular gasket would be better!
The operating temperature for graphite metal wound gaskets is -200 to 850°C, and the operating pressure is 0 to 20 MPa
Well, let me explain it to you. First, one can use copper gaskets, but I don’t think anyone would buy those. So I’ll tell you about the simplest option: using thin paper gaskets. Our factory uses such gaskets for steam systems, though they are a bit prone to being damaged
Metal gaskets or high-temperature paper film gaskets can be used; copper gaskets are also acceptable
Stainless steel graphite wound gasket-----7th floor
Can the temperature reach 300°C at a pressure of 4 kilograms? If it really has to reach 300°C, rubber gaskets are hardly effective in solving the problem, but they can still hold up for a month or so for short-term use. Regarding materials, steam-resistant silicone rubber or fluororubber can be used. Of course, if it is to be used for a long time in a steam environment at 300°C, DuPont’s perfluoroether rubber can be employed. It’s just that the cost is very high. If it’s affordable, you can consider it.
Either graphite metal wound gaskets or copper gaskets can be used.
Don’t listen to people talking nonsense; I tell you to use vermiculite gaskets – they’re perfect for one maintenance period. Don’t believe those who suggest using graphite; that’s all nonsense. I’ve experienced this firsthand
Is graphite + 304 gasket not suitable?