Ace Glass 8190-205 High Pressure Three‑Way Stopcock with Easy‑Action Plug & Tef‑Cap O‑Ring, 0-5 mm Bore

High vacuum three-way stopcock for use in combining materials in proportion or as a common feed distributed in proportion. With Tef-Cap O-Ring seals that eliminate exposure to corrosive materials. For use to 3.5 Kg/cm² internal pressure. The opening is 0-5 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. Each easy action plug acts independently of the other and is connected to a common tubulation through a variable opening.

Note: O-Rings are NOT replaceable.