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