Winters Instruments 4WPS Low Pressure Diaphragm Pressure Switch is engineered for precise pressure monitoring in low-pressure applications. Designed with a stainless steel diaphragm sensing element, it provides reliable switching performance across pressure ranges from vacuum to 150 psi, making it suitable for demanding industrial environments.
The 4WPS features single or dual set point configurations, simple self-locking set point adjustment, and optional hermetically sealed contacts (excluding vacuum models). Its rugged anodized aluminum housing and NEMA 4 enclosure ensure dependable operation in harsh operating conditions across oil & gas, mining, and industrial process systems.
Key Features
- Low-pressure diaphragm pressure switch
- Pressure range from vacuum to 150 psi
- Single or dual set point options
- Fixed deadband
- Stainless steel diaphragm sensing element
- Simple self-locking set point adjustment
- Optional hermetically sealed contacts
- ±0.5% of adjustable range accuracy
- NEMA 4 enclosure (NEMA 4X optional)
- UL and CSA approved
- PED compliant
- CRN registered
- Backed by a 1-year manufacturer’s warranty
Typical Applications
- Oil & gas facilities
- Mining operations
- Industrial process systems
- Pressure monitoring
- Equipment protection
- General industrial automation
Technical Specifications
| Specification | Details |
|---|---|
| Pressure Range | Vacuum to 150 psi |
| Accuracy | ±0.5% of Adjustable Range |
| Pressure Connection | 1/4″ NPT Female (1/2″ NPT Optional) |
| Electrical Contact | SPDT (Dual SPDT Optional) |
| Housing Material | Anodized Aluminum |
| Wetted Parts | 304 Stainless Steel Process Connection & 17-7 PH Stainless Steel Diaphragm |
| Enclosure Rating | NEMA 4 (NEMA 4X Optional) |
| Operating Temperature | -65°F to 165°F (-54°C to 74°C) |
| Compliance | UL, CSA, CRN, PED Compliant |
Winters Instruments offers general purpose pressure switches, indutrial pressure switches, low pressure diaphragm pressure switches, differential pressure switches.
Winters Instruments offers high-quality pressure measurement and temperature instrumentation products, including pressure gauges, pressure switches, pressure transmitters, and thermometers. Designed for HVAC and industrial applications, their reliable solutions deliver accurate monitoring, robust performance, easy installation, and long-lasting durability across a wide range of process and environmental conditions.
Alyamitech
Alyamitech an Saudi Arabian distributor company specializing in HVAC products, valves, pumps, industrial instruments and MEP Signs. Company is based in Dammam and Saudi Arabia. Currently, we are official distributor of Winters Instruments Products in Saudi Arabia. We also distrubute products from Flamco Group, Grundfos, Envotec, Mifab, Vimco and other HVAC and precision instrument products. Read more
