Series 590 | Variable leak valve

Variable leak valve

Gas inlet valve to control very small gas flows in processes such as mass spectrometry, industrial applications, R&D, labs, etc.

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Factsheet

Series Number590
Series NameVariable leak valve
DescriptionAll metal variable leak valve for precise, reproducible adjustment of gas flows. Available with manual actuator (knurled knot) or stepper motor driven. Closing to a mechanical stop to give a reliable leak tight position without the risk of over tightening. Bakeable to 300°C in the open and closed position and no requirement for lubrication during the specified lifetime.
Actuator typesManual actuator (hand wheel), Stepper motor
Sealing GateMetal
Sealing BonnetMetal
FeedthroughDiaphragm
Leak rate body < 1 . 10-10 mbar ls-1
Leak rate Seat < 1 . 10-10 mbar ls-1
Nominal inside diameters (ID) in mm (inch)16 (5/8") - 16 (5/8")
Body materialStainless steel
Cycles until first service 20 000

Accessory

  • membrane - Part Nr.: 334578
  • Cable compl. - Part Nr.: 230327
  • power supply - Part Nr.: 249775

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