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O-Ring Problem

O-Ring Problem

O-Ring Problem

(OP)
I have some problem for O-ring seal.
It used under condition syntetic oil and  high temperature.I found it like a mud or soming like that.
my quesion is what happen ?

RE: O-Ring Problem

What grade of o' ring are you using, grade of oil and temperature? EPDM will disintergrate very quickly in oil. Viton can be used up to 180 Deg C max. Above that you will require Kalrez or Isolast.

RE: O-Ring Problem

I agree with DonBallantyne, it sounds like a compatability problem with the fluid and o-ring material.

RE: O-Ring Problem

go to parker.com  click on o ring division

RE: O-Ring Problem

you can also visit simrit.com and find some tools about how to choose the proper material and design a adequate groove for your application. The small "mud" particles are burned oil parts "thanks" to very high tepmerature or an inadequate oil-quality or just simple dirth according to poorly flitered oil in the system.

RE: O-Ring Problem

(OP)
Soory!! That I  too late to reply.
I used it for Gas Turbine, material is Viton ,Temperatur about 180 C.

RE: O-Ring Problem

Viton will deteriorate because of alcohol based liquids.  

RE: O-Ring Problem

Given that it is a Gas Turbine at 180 Deg C you will require Kalrez or Isolast that is less expensive. I suggest you contact you local distributor and provide full details of the duty conditions. Isolast web site is:

http://www.polymersealing.us/wlb_global.htm?wlb=17

RE: O-Ring Problem

For oil resistance at or above 180°C we've had excellent results with LSR silicone gaskets (FIPG).  Try contacting the R&D guys at:
www.rampf-resins.com

Good Luck!
Roger

RE: O-Ring Problem

Use a PTFE based seal with an metal spring energizer.  PTFE is compatible with most chemical and has higher service temperature, up to 450F.

RE: O-Ring Problem

FEP (teflon encapsulated Viton) is better & cheeper solution for your problem

try this, good luck

siddik

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