Series 108 | UHV gate valve

UHV gate valve

The standard valve for UHV isolation applications in research and industry.

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Factsheet

Series Number108
Series NameUHV gate valve
DescriptionThe series 10.8 standard UHV gate valves are used for many applications. This valve type is bellows sealed and the mechanism is free of lubricants. The approved VATLOCK sealing principle ensures a virtually shock-free locking.
Actuator types3-position pneumatic actuator, Manual actuator (hand wheel), Pneumatic actuator (double acting)
Sealing technologyVATLOCK-System
Sealing GateFKM (VITON®)
Sealing BonnetMetal
FeedthroughBellows
Leak rate body < 5 . 10-10 mbar ls-1
Leak rate Seat < 1 . 10-9 mbar ls-1
Nominal inside diameters (ID) in mm (inch)63 (2 1/2") - 320 (12")
Body materialStainless steel
Cycles until first service 50'000 cycles

Options

Valve
  • Customer specified flanges with/without watercooling
  • Other sealing materials
  • O-ring seal in gate with DN 63, 100, 160, 200 instead of the vulcanized seal
  • Ports for roughing (by-pass), venting or for gauges in various positions possible
  • Space saving compact version available: sizes on request
  • Special gate for the installation of various foils
  • Window in gate with DN 63, 100, 160, 200
  • Special valve gate for the installation of various foils
  • Ports for roughing (by-pass), venting, purging or for or gauges; others positions on request
Actuator
  • Solenoid valve for impulse actuation: last valve position is maintained at power failure
  • Solenoid valve separate, for external mounting
  • Other solenoid valve voltage (standard 24VDC)
  • Manual emergency operation on solenoid valve lockable
  • Double position indicator (2 switches each for the positions «open» and «closed»)
  • Bakeable position indicator: manual actuator bakeable to max. 250 °C, pneumatic actuator to max. 200 °C
  • Position indicator with change-over contact

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