What is the maximum vacuum tolerance of carbon steel-lined PTFE tubes?
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According to the standard HG 2437-2006, the nominal pressure of steel-lined PTFE pipes ranges from -0.1 MPa to 1.6 MPa. Have any of you used such pipes in ultra-high vacuum conditions? Can domestic manufacturers produce pipes that can withstand extreme vacuum levels?
The vacuum level of a vacuum pump under normal operation is usually -0.1 MPa.
I’m not sure what the original poster means by \"limiting vacuum\" – fluorinated steel-lined pipes can be used in a full vacuum environment.
A specific judgment will be made based on the operating conditions; feel free to call at 18021418862 for consultation.
It is determined whether it can withstand extreme vacuum based on the specifications of the piping and the manufacturing process. For different specifications and temperatures, the length of fluorinated pipeline liners capable of withstanding extreme vacuum varies.
-0.1 MPa is already the ultimate vacuum
The largest diameter pipe available at present is DN500, with a operating temperature of 100°C and a requirement for full vacuum conditions. Can a PTFE-lined pipe meet these requirements?
DN50, 80, and 100 sizes have been seen in use; they operate at an absolute pressure of 5000 Pa, and no problems have occurred after 1 to 2 years of use!