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Lubricating owing on cold service

Lubricating owing on cold service

Lubricating owing on cold service

Need some advice on what to use to lubricate orings on an ethylene service at minus 160C. I was considering a smear of silicon oil, does anyone have experience in this field.
I know if silicon grease is used it turns into powder and can cause problems.

Thank you in advance.

RE: Lubricating owing on cold service

Saturated ethylene liquid / vapor at 1atm is at 170degK = -103degC, so what is this service for C2= requiring -160degC operation?

RE: Lubricating owing on cold service

I do not have the actual data sheets, in essence we are sealing cold services and wish to establish what to use to lubricate the orings. Do you have any experience?

RE: Lubricating owing on cold service

Sorry I dont, but at the outset, would have thought that in these cases, a dry gas seal would be the way to go- then the O ring wouldnt be exposed to these temperatures due the buffer seal gas between the process medium and the seal box?

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