HI-VAC® Low Hold-Up Valves with PTFE Plug and No Tip O-Ring
The sidearms of this high-vacuum valve are bent to minimize liquid holdup that would occur in conventional valves.
- PTFE shaft seals protect the FKM o-rings from contact with the system
- Seal design reduces outgassing
- 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
- Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements