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Differential Pressure Switches
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The Series 1950 Explosion-Proof Differential Pressure Switch features a durable weatherproof housing, external set point adjustment, and is ideal for HVAC and process applications.
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The Dwyer® Series 1950G Explosion-Proof Differential Pressure Switch is weatherproof and UL listed, designed for natural gas and outdoor use, ensuring safety and reliability.
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Compact Low Differential Pressure Switches
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Compact Low Differential Pressure Switches
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The Series DH Digihelic® Differential Pressure Controller combines a digital display, control relays, and transmitter for precise pressure, velocity, and flow measurement.
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The Adjustable Differential Pressure Switch monitors pressure and vacuum with an easy-to-use knob. Ideal for HVAC applications, it features a compact design and durable materials.
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The Digihelic® Differential Pressure Controller combines a digital gauge, control relay, and transmitter in one device, offering versatile measurements with 1.5% accuracy.
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Miniature Adjustable Pressure Switch applies to industrial, HVAC, medical and automotive applications. Gold inlay contacts. Small and lightweight.
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The Photohelic® Switch/Gages offer precise differential pressure monitoring with easy-to-read analog displays. Compact and durable, they are suitable for various applications.
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The Mini-Photohelic Differential Pressure Switch/Gage measures non-corrosive gas pressures with dual switch points and LED indicators, perfect for fume hoods and clean rooms.
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The PSW-180 series are compact, differential 5 A SPDT switches with the option of a relay or alarm output. They have NEMA-4X housings to withstand harsh environments.
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The PSW-845 series are economical, compact 250 mA SPDT differential pressure switches with a fixed deadband and excellent bypass characteristics.
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The PSW-150 series are differential 15 A DPDT switches with a fixed deadband and UL listing for general purpose applications.
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Differential Pressure Switches (Metal) monitor filter blockage and flow levels, providing reliable alarms and control for safe operation.
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Explore our Industrial Control series featuring reliable pressure gauges, flow meters, and temperature controllers for precise monitoring and control in various applications.
Differential Pressure Switches
Differential Pressure Switches act when the pressure difference between two ports reaches a set point. Products in this category span ACI, Omega Engineering, and Dwyer Instruments metal and plastic differential switches, industrial SPDT and DPDT switches, OEM mechanical switches, air-control switches, low differential switches, floating-contact designs, and adjustable inH2O or Pa ranges.
Applications include:
- Filter blockage and airflow proof alarms
- Duct static pressure and damper control
- Fan, blower, and equipment status interlocks
- Industrial differential pressure alarm points
Choose by setpoint range, repeatability, deadband, contact rating, enclosure, media compatibility, and whether the switch is used for alarm or control.
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