These valves use PTFE plugs for vacuum applications up to 5 x 10¯7 Torr. Designed with a precision external thread for fine control. Full open position is at 1 1/2 turns. The shaft is non-rotating and a seal is made with a Viton o-ring on a tapered seat. PTFE shaft can tolerate system temperatures of 230ºC and intermittently at 275ºC.
Unit of Measure

Item No.

N/A 7148-08

Item Description

N/A High Vacuum Valve, Straight, PTFE Plug, without Tip O-Ring, 0-12mm Bore Range, 16mm Stem O.D., 112 O-Ring Shaft Size

Stopcock Bore Size

N/A 0-12 mm

Approximate Stem Outer Diameter

N/A 16 mm

Upper O-Ring

N/A 112

Pkg. Qty.

N/A 1