Vacuum Pump, Hyvac, Double Stage, Belt Drive, 550RPM, 1-1/2 hp
Compact, modular design: fewer interchangeable working parts; dynamic balancing for smooth, quiet operation; adjustable gas ballast for full release of vapors. ; extremely fast recovery time after exposure to atmospheric pressure; hydrodynamic bearings for long dependable service. The gas ballast on these models eliminates the need for cold trap or frequent oil changes. Pumps are supplied with grooved pulleys, molded rubber V-belts, oil level sight gauge, draincock, belt guard, and operating manual. Initial supply plus 1 extra qt of oil furnished.
