Manifold Vacuum Inert Gas PTFE Stopcocks

◎With 4mm double oblique, high vacuum hollow PTFE stopcocks precision ground with corresponding numbers on barrel and plug.
◎Lower vacuum chambers on stopcock are evacuated with a separate hole in the plug in order to hold the plug in the stopcock barrels.
◎Beams are 22mm O.D. with front-left and rear-right 10mm hose connections.
◎Distance between stopcocks is 75mm center to center.