Precision Sensors
  Vacuum Switches
Vacuum Switch

Vacuum Pressure Switch PV48W Series

The PV48W series vacuum high purity pressure switch offers accurate and repeatable switching for monitor/control and alarm/shut down protection.  These units, designed specifically for high purity gas systems are vented to ambient conditions for sensing pressure below (vacuum) ambient.



Vacuum Switch PV48W Series

Available Settings 10 to 150 mm Hg VAC
Deadband 20mm Hg + 5% of Setting
Repeatability ± 5mm Hg + 2% of Setting
*Internal Volume 2.22 CC
**Proof Pressure 0 psia - 15 psig
Operating Temp. Range 0° to 130° F
Finish 5 Ra
Wetted Materials 316L per F20
Media Connections 1/4" end seal type
NW25 flange  
Electrical Connections Free Leads
Crimp Type Connectors
D Sub
Min. Operating Life 1 Million cycles
Approvals UL, CE, ISO 13849
Warranty 36 Months
*With 1/4" male end seal type
**Higher Proof pressure available


  • Tamper proof (factory) setting
  • Welded construction
  • Negative-rate belleville spring design provides longer life, accuracy and repeatability
  • RoHS Compliant 
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  340 Woodmont Road
Milford, CT 06460
Tel: (203) 877-2795
Fax: (203) 877-8752