Virgin PTFE Tubing Pressure-Temperture Derating

[Robanik]

I am looking for a pressure-temperature chart for Virgin PTFE tubing. Any one know where one is located on the web? As an alternative does anyone know a published tensile strength for Virgin PTFE at elevated temperatures greater than 73F. I am looking for tensile strength value for Virgin PTFE per ASTM D1457 at 175F (80C).

 

[GoofyatEEE]

Everything I see suggests around a 30% reduction in pressure rating at 80C, but I do not know of a definitive source for this info.

 

[Robanik]

Thanks GooyatEEE,

Do you have documentation or published data showing the reduction value?

 

[GoofyatEEE]

Several manufacturers list pressure ratings at various temperatures. Look at the sites below.

http://www.ftipv.com/flex_hose_connectors/ptfe_tube.html

http://www.tygon.com/Data/Element/N..._Line_edit.asp?ele_ch_id=L0000000000000001513