Temperature range for use of PTFE sealing rings in the stuffing box of reciprocating compressors
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This post was last edited by a1192521 on 2024-4-17 at 18:23. Can domestically produced PTFE sealing rings in China operate for extended periods in an environment with a temperature of 140 degrees?
One of the major advantages of PTFE (polytetrafluoroethylene) sealing rings is their excellent temperature resistance. Typically, the operating temperature range for PTFE is from -200°C to +260°C. Therefore, domestically produced PTFE sealing rings can operate for extended periods in an environment of 140°C with no problem. Of course, other factors also need to be considered in practical use, such as pressure and the chemical properties of the medium, as these can all affect the sealing performance. .
If the pressure is 170 kilograms and the temperature is 130 degrees, is PTFE still suitable?
Okay, thank you, it’s very helpful. :handshake
For gaskets used in valves, woven polytetrafluoroethylene gaskets are generally used these days. Its features are also quite distinct; the parameters used are as follows, and these represent the technical specifications of a good product available in China.
Is your pump the device in this operating condition? Valve? This needs to be made clear. For specific applications, one can consult the specification sheets of similar PTFE seals from well-known imported brands to determine whether they can be used. Then look for domestic substitutes.
Well, I missed it; it’s a reciprocating compressor.
It’s not a valve; it’s a reciprocating compressor.
We mainly use it in valve packings and reciprocating pump stuffing boxes, with the contact linear velocity being the key factor. For stuffing boxes under high pressure of 180 pounds with a temperature of 40 degrees in reciprocating pumps, we use aramid-woven packing.
For the stuffing box of reciprocating compressors, Shanghai Holbig is a company in China that does a good job in this area. You can contact us for inquiries.