Dwyer Instruments DXW-11-153-2 Pressure Switch

The Dwyer Instruments DXW-11-153-2 is a professional-grade wet/wet differential pressure switch engineered for contractors who require precision in demanding HVACR and industrial applications. This Series DX differential pressure switch utilizes opposing diaphragms and a pivot mechanism to sense the pressure delta between two sources, providing a reliable SPDT snap switch output for critical control logic. With an adjustable range of 10 to 25 psi, this unit is ideal for monitoring filter differential pressure, proving flow through chillers, or preventing pump dry-run conditions. The wetted materials consist of durable brass and fluoroelastomer, ensuring compatibility with a wide array of compatible gases and water-based solutions.

Designed for field efficiency, the DXW-11-153-2 features an externally adjustable setpoint screw and a removable terminal block, significantly reducing wiring time during installation. The weatherproof UL Type 4X (IP65) enclosure, constructed with an aluminum body and 300 SS cover, provides superior protection in wash-down or outdoor environments. This differential pressure sensor supports a high static pressure limit of 200 psig, maintaining a repeatability of ±2% of full range even in high-vibration settings. Connection to the system is handled via standard 1/4" NPT female ports, making it a drop-in solution for most industrial piping configurations.

• High Pressure Resilience: Handles static pressures up to 200 psig (13.8 bar) without compromising switch accuracy.
• Field Serviceability: The removable terminal block and external adjustment screw allow for rapid calibration and maintenance without specialized tools.
• Exceptional Durability: NEMA 4X / IP65 rated housing protects internal components from dust, moisture, and corrosive wash-down procedures.
• Versatile Media Compatibility: Fluoroelastomer diaphragms permit use with both liquid and gas mediums in varied process environments.
• Precision Switching: Maintains consistent repeatability within ±2%, ensuring system safety and operational efficiency.

What is the maximum pressure this switch can handle?
The DXW-11-153-2 is rated for a maximum static pressure of 200 psig. However, users should ensure the continuous single-side pressure does not exceed 1.25 times the full differential range to prevent mechanical damage.

Can this be used for outdoor HVAC installations?
Yes, the unit is housed in a rugged UL Type 4X (IP65) enclosure specifically designed for dust-laden, outdoor, and wash-down environments, provided the conduit connections are properly sealed.

How do I adjust the setpoint?
The setpoint is adjusted via an external screw located on the housing, allowing for straightforward field changes to the 10 to 25 psi range without opening the primary enclosure.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.