Series 660/680 WOB-L® Piston pumps from Thomasincorporate a package of features to provide clean air-flow,long life, excellent efficiency, low noise and low vibration.These pumps are well-suited to a variety of medical andenvironmental applications, including oxygen concentrators,blood analyzers, dental carts and ozone generators.The pumps' oil-less pistons and cylinders, plus efficient intakefilters, ensure a non-contaminated air flow. Stainless steelvalves, high-performance piston seals, hard-coated aluminum cylinders and permanently lubricated bearings offer long-life performance. Wetted aluminum parts are treated for corrosion protection. The pumps' single-phase AC motors are of ultrareliable permanent split capacitor design, which eliminates the need for a starting switch.Series 660/680 pumps provide up to 28.5 in. Hg (-965 mbar) of vacuum, or 45 psi (3.1 bar) of pressure. Maximum flow is rated at 2.37 CFM (67.1 LPM).
