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