High Vacuum 90° Stopcock, Easy Action Plug with Tef-Cap O-Ring, Ace Glass

High vacuum stopcock with arms at 90° and Tef-Cap O-Ring seals that eliminate exposure to corrosive materials

For use to 3.5 Kg/cm2 internal pressure. With variable openings from 0–3 mm to 0–10 mm. An ultimate vacuum of 10-7 can be realized with the standard three seals. Smooth acting valve permits fine adjustment of opening. Front ring seal makes a positive closure against a precision-formed heavy glass seat. Hooded handle is permanently attached to PTFE plug and is therefore not bakeable. O-Rings are not replaceable. Reference marks on body aid in repetitive setting.