Precision Sensors' high-purity pressure switches are considered "best-of-class" in the semiconductor equipment market. Designed specifically for the demanding requirements of semiconductor tool OEMs, they provide highly repeatable on-off switching for alarm, shutdown and interlock applications. Wetted surfaces are VIM - VAR 316L and are standardly 10 Ra or 5 Ra depending on the requirement. End connections include face-seal, flow-through and flush-type fittings. Set points can be gauge, absolute or vacuum - and cycle life can be over 1 million on-off cycles. Manufacturing of high-purity products is done in a clean-room environment.
The PV36W 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 Pressure Switch PV36W Series Features
- Clean, Reliable, Long Life Performance
- Highly Accurate and Repeatable Design
- No Adjustment Needed
- Tamper proof (factory) setting
- Welded construction
- Negative-rate belleville spring design provides longer life, accuracy and repeatability
- RoHS Compliant
Vacuum Pressure Switch PV36W Series Specifications
| PV36W |
Available settings | 125 to 750 mm Hg VAC |
Deadband | 40mm Hg + 6% of Setting |
Repeatability | ± 15mm Hg + 2% of Setting |
*Internal Volume | 1.06 CC |
**Proof Pressure | 0 psia – 25 psig |
**Operating Temp. Range | 0° to 130° F |
Finish | 5 Ra Typical |
Wetted Materials | 316L per F20 |
Media Connections | 1/4″ end seal type |
Electrical Connections | Free Leads or Crimp Type Connectors |
Min. Operating Life | 5 Million cycles |
Approvals | UL, CE, ISO 13849 |
Warranty | 36 Months |
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