The Series 2119V diaphragm vacuum pumps have been specifically engineered to provide long, trouble-free service in Class B steam autoclaves. A combination of engineered resin and diecast aluminum construction provides maximum durability. All wetted aluminum parts are epoxy coated for corrosion protection. Umbrella valves and diaphragm are constructed of EPDM, which offers exceptional resistance to steam and water. Thermally protected motors are available for 115VAC 60Hz or 230 VAC 50/60Hz power supplies. Series 2119V pumps provide up to 27 in. Hg (932 mbar) vacuum. Maximum flow is rated at 0.81 CFM (22.8 lpm).