Vacuum gate valves

03/01/1998

Vacuum gate valves

Throttlemaster vacuum gate valves position the gate full open, full closed, or anywhere between, to an accuracy of ?0.002 in. (0.05 mm). The 1/4 DIN control module provides front panel manual control of gate position for process development and accepts 0-10 V or 4-20 mA signals from the PLC or controller for process control. Also included are contact closures on the rear panel for open and closed position indication. Valves are available in aluminum or stainless steel with ANSI flanges from 2-8 in. and ISO flanges from 63-200 mm. Valves stay sealed with up to 2 atmospheres (30 PSIG) in either direction. Open/closed cycle life of 250,000 is standard, and million-cycle valves are available.Vacuum Research Corp., Pittsburgh, PA; ph 800/426-9340 or 412/261-7630, fax 412/261-7220, e-mail [email protected].