High-Vacuum Pumps

Best Performance-to-Price Ratio

These cost-effective pumps give you up to 1 micron of pressure.
Specifications: Two-stage 1/2-hp HV Pumps produce 1-micron ultimate pressure. Rotary sliding vane operates quietly while providing free air displacement (85Lpm or 142Lpm). Gas ballast helps purge moisture from the vacuum system. Trap reduces the risk of oil being sucked back in. Oil capacity of 785cc (27 oz.) for 3-cfm models and 669cc (23 oz.) for 5-cfm model. Operating temperature of 30°–170°F. Intake port has a 3/8" O.D. for 3/8" I.D. tubing. 85L model is available with a Bourdon-type steel-case gauge that checks vacuum at the intake. 2-1/2"-dia. dial; 0–30" Hg. No. 137353 has higher displacement. Initial supply of pump oil included with all models.