Wilkerson WRA171 Series High Precision Vacuum Regulator, Vacuum to 29.92 Hg
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WRA171 Series High Precision Vacuum Regulator

Brand: Wilkerson Corporation
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The WRA171 is a high accuracy vacuum regulator that provides uniform vacuum regulation independent of vacuum supply changes and flow demand. This unit has a diaphragm assembly with three springs to provide a more balanced loading of the diaphragm.
Features
  • Control sensitivity of 0.125" (0.32 cm) water column allows use in precision applications
  • Balanced supply valve minimizes effects of vacuum variation
  • Aspirator tube compensates for downstream pressure droop under flow conditions
  • A separate Control Chamber isolates the diaphragm from the main flow to eliminate hunting and buzzing
  • Construction allows servicing without removing from the line

Specifications

Brand

Vacuum Supply Maximum

  • 29.92 Hg (760 Torr)

Flow Capacity

  • 3 scfm @ 650 Torr Sypply, 250 Torr Set Point

Vacuum Supply Effect

  • Less than 1 Torr for 100 Torr (.04 Hg for 3.94 Hg) Change in Vacuum Supply

Sensitivity

  • .125” (.005 psig) (.32 cm) Water Column

Ambient Temperature

  • -40° F to +200° F, (-40° C to 93° C)

Documentation

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