The D48W Series Differential Pressure Switch from UE Precision Sensors is engineered for high-purity applications that require precise monitoring of pressure differences between two points. Designed with dual-port functionality, this switch detects changes in differential pressure and activates a response when a predefined threshold is reached.
Built for clean and controlled environments, the D48W Series is ideal for semiconductor processes, gas delivery systems, and mini-environments where contamination control and repeatability are critical. Its compact, welded construction and factory-set calibration simplify installation while ensuring long-term reliability.
Features
Features & Benefits
The D48W Series delivers dependable switching performance in applications where precision and cleanliness are essential.
- Dual-Port Differential Measurement
Port 1 supports high-purity gases or compatible liquids, while Port 2 is optimized for dry air or inert gases—allowing accurate comparison between two pressure sources. - High-Purity Construction
Manufactured with VIM-VAR 316L stainless steel wetted materials and welded construction to minimize contamination risk and ensure leak integrity. - Highly Repeatable Switching
Incorporates a snap-action Belleville spring mechanism that delivers consistent actuation and reliable performance over time. - Factory-Set Calibration
Each unit is pre-configured to a specified differential pressure setpoint, preventing tampering and reducing setup time in the field. - Safety & Compliance
Engineered to meet stringent standards, including UL and CE approvals, and capable of supporting functional safety applications.
Specifications
Specifications & Selection Considerations
Selecting the correct D48W Series configuration ensures optimal performance in your application.
Key Selection Criteria
- Differential Pressure Range: Typically available from 20 to 250 mmHg differential
- Media Compatibility: Ensure Port 1 and Port 2 match your process media requirements
- Proof Pressure: Up to 100 PSID differential and 300 psig on both ports simultaneously
- Operating Temperature: Suitable for environments from 0°F to 200°F
- Connection Type: Includes options such as 1/4" end seal and barb fittings
Performance Characteristics
- Repeatability: ±5 mmHg + 2% of setpoint
- Deadband: 20 mmHg + 5% of setting
- Cycle Life: Up to 1,000,000 operations
- Certifications: UL, CE, ISO compliance
These specifications ensure the D48W Series can perform reliably in demanding, high-cycle applications.
Application
Applications & Industries
The D48W Series is purpose-built for industries where precision pressure control and contamination prevention are essential.
Typical Applications
- Semiconductor gas delivery systems
- Load-lock chambers and vacuum systems
- Mini-environments and cleanrooms
- Process pressure monitoring and control
- Safety interlocks and alarm systems
Industries Served
- Semiconductor Manufacturing
- Electronics & Microfabrication
- Chemical Processing
- Industrial Gas Systems
- Advanced Manufacturing
Its ability to reliably detect small pressure differences makes it especially valuable in environments where even minor deviations can impact product quality or system performance.
Q & A
Differential Pressure Switch D48W Series Q & A
Key factors include the required pressure differential range, media compatibility, environmental conditions, connection types, and system safety requirements.
Downloads
Download Differential Pressure Switch D48W Series Catalog
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