High Precision Regulator Products
High sensitivity, constant bleed and pressure control under varying flow, input pressure and temperature conditions.
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WRA171 Series
HIGH PRECISION VACUUM REGULATOR
Vacuum to 29.92 Hg
Features
- Control sensitivity of .125" (.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
Vacuum Supply Max. | 29.92 Hg (760 torr) |
Flow Capacity | 3 SCFM @ 650 torr Sypply, 250 torr Setpoint |
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) |
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