Welch Gold pump oil comes in three different sizes: 1 liter (8995G-11), 1 gallon (8995G-15), and 5 gallon (8995G-20).
A double distilled synthetic hydrocarbon oil designed for excellent resistance when pumping corrosive gases or vapors. A synthetic base stock that has no aromatic compounds or sulfur which accelerate varnishing, sludging, and carbon build-up when pumps are used to pump corrosives. Gold oil will give a longer service life and superior protection for the internal metal components of a pump in corrosive pumping applications compared to DuoSeal and Premium Oil. Gold oil offers excellent vacuum pressure in both belt-driven and direct-driven vacuum pumps over time. Gold oil is miscible with conventional hydrocarbon oils and can be used without rebuilding the pump. The oil is clear and colorless.
Pump oil can become contaminated with ingested fluids and vapors. Use recommended pump oil and change your pump oil regularly. Cloudy and discolored oil will lead to premature pump failure.