Valve Hi Vac Ptfe Sz 4

HIGH VACUUM VALVE
This high-vacuum valve is for use in vacuum applications up to 5 x 10-7 Torr.


• Similar to 826510 but without tip o-ring exposure
• Designed with a precision external thread for fine control
• Can be used as a bleed up to 1/2 turn
• Full open position is at 1-1/2 turns
• Primary seal is made with a FKM o-ring on a tapered seat
• Non-rotating PTFE shaft can be used continuously at system temperatures of 230 °C or intermittently at 275 °C
• Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements

Bore Range (mm) : 0-4
Shaft O-Ring Size : 010
Stem OD (mm) : 9
Case Qty : 1