Welch Premium Oil for Direct Drive Vacuum Pumps

•  Low vapor pressure
• Designated for high RPM direct drive vacuum pumps
• No additives or inhibitors
• Recommended for Welch direct-drive vacuum pumps

A triple-distilled hydrocarbon oil using severely hydrotreated base stock is designed to resist breakdown at higher RPMs and operating temperatures of direct-drive vacuum pumps. The hydrotreating virtually eliminates aromatics and sulfur to give good resistance to sludge and varnish formation overtime in corrosive environments. Premium oil enables direct-drive vacuum pumps to maintain the highest vacuum performance over time. The oil is light yellow.