Grease / Water Treatment Compatibilty
Grease / Water Treatment Compatibilty
(OP)
I have some ball valves in my system that have started to exhibit higher torque requirements to actuate. I took a couple apart to see what was going on, and noticed that the stem and O-rings seemed rather "dry". The grease appeared to lose all it's lubricating qualities, although it was obvious that it was still there.
The manufacturer says the valves are made with a synthetic grease (Kluebersynth VR 69-252) and EPDM O-rings. We used a sodium nitrite based corrosion inhibitor on the system. Our medium is ethylene glycol/water (50/50).
Is it possible one of these chemicals is reacting with the grease to cause this "drying out"? Any suggestions for other types of grease?
The manufacturer says the valves are made with a synthetic grease (Kluebersynth VR 69-252) and EPDM O-rings. We used a sodium nitrite based corrosion inhibitor on the system. Our medium is ethylene glycol/water (50/50).
Is it possible one of these chemicals is reacting with the grease to cause this "drying out"? Any suggestions for other types of grease?





RE: Grease / Water Treatment Compatibilty
try consulting the websites mentioned in Thread408-104579: maybe you'll find some information about the lubricants' chemical compatibilty...
Bye, 'NGL