cleaning of oil on pressure gages

[radhiabouras]

hello every body
to clean pressure gages we used to use freon.
but as you know now the freon is a prohibited compound that affects the environment.
does any body know what is the replacement of the freon to clean pressure gages.

[dminesinger]

While on Kwajalein Island we got a King Nutronic system. And had a hard time getting the solvent.

But, got this off the web. Hope it helps. Or try googling King Nutronic Model 3646-1-1 or 3542-1-1.

HCFC 141b is SCAQMD compliant and works especially well for cleaning non-oxygen system gauges used in lubricating and hydraulic service such as on submarines. A common method to clean these types of gauges involves a piece of equipment specifically designed to clean gauges with a liquid solvent and then remove the residual solvent using a vacuum pump. The solvent is pumped into the gauge and circulated. The residual liquid is then removed using a vacuum pump. The vacuum removal process lowers the pressure inside the gauge enough to make the solvent liquid vaporize and be removed as a gas. The machine then collects the spent liquid solvent in a container. 3M's HFE-71DE, NSN 6850-01-459-0069 is also approved for this type of cleaning application. If you are not fully satisfied with cleaning performance, cost, service, etc. for sourcing and cleaning with HFE-71DE, please call or email us to discuss your technical requirements and where HCFC 141b can satisfy your critical cleaning needs.

[spanishfly25]

another way is to use acetone, flush the system with acetone a few times and then with methonal for drying