Tetrafluoroethylene vacuum-resistant pipe fittings and valves
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Are there any manufacturers in China that currently produce steel-lined PTFE pipes, fittings, valves, etc.? If not, then for a system containing 25% hydrochloric acid under high-vacuum conditions of -0.09 Mpa, what type of pipeline is suitable? .
This post was last edited by Litaotao1314 on 2011-6-5 17:56. We are the ones who produce tetrafluoride! I’ve seen your requirements; I’d like to ask what your temperature is? What is the caliber? The temperature resistance of PTFE is ≤180°, and your negative pressure can achieve this; we have cases to prove it! The method also varies depending on the diameter of your pipe. Intentional
This post was last edited by Litaotao1314 on 2011-6-5 at 17:57. Our company specializes in the production of high-temperature, high-pressure, and fully vacuum-resistant PTFE pipes and pipe fittings, manufactured in accordance with American ASTM standards.
In your case, it is best to use steel-reinforced plastic composite pipes, as they can withstand negative pressure, do not delaminate, and are more resistant to hydrochloric acid corrosion.
What is your temperature, and at what temperature is your high vacuum at -0.09 Mpa? Also, what is the diameter of the pipe?
Reply to 6# wu*changye: The maximum operating temperature is 150 degrees, and the maximum pipe diameter is DN250. Thank you!
Reply to 7# chemi: You can use PTFE-lined tubes or ETEF coating to address your issue with negative pressure; both of these fluoropolymer materials are ideal corrosion-resistant options for your medium.
Reply to 7# chemi: I have a list of suppliers of fluorine-lined valves, pipes, and fittings from Sinopec’s system; please contact me to obtain it
The German company Richter has been specializing in the production of lined valves and pumps since 1957, operating in pressure ranges from 1 mbar to 16 bar and at temperatures from -60° to 200°. We have applied PFA-lined pumps and valves at 220-230° in BASF and BAYER projects. Visit www.richter-ct.com to log in and search for relevant information
Is there none? Please leave a message. Note: Temperature is about 150 degrees, absolute pressure is 10 kPa. Hydrochloric acid! .