Will the lining of a centrifugal pump with a steel lining and PTFE coating contract or deform when used at temperatures as low as -20 degrees Celsius?

2019-02-26View Original

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Will the lining of a centrifugal pump with a steel lining and PTFE coating contract or deform when used at temperatures as low as -20 degrees Celsius?

Reply #22019-02-27

There is some thermal expansion and contraction of plastics. But feel free to use it.

Reply #32019-02-27

-20 degrees Celsius is the limit for fluoroplastics; certain degree of cold shrinkage will definitely occur.

Reply #42019-02-28

I have not used a PTFE-lined pump at such low temperatures yet, but given that we use PTFE gaskets for liquid oxygen and liquid nitrogen, the impact should not be significant

Reply #52019-03-03

Floor 4 is correct; a fluorine pump cannot replace it in all operating conditions

Reply #62019-03-05

Have never encountered this situation 0.0

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