Differential

Differential pressure switches detect pressure differences between two points, triggering control actions to protect equipment and optimize industrial processes.

1 - 21 of 21 Products
646DZE-7011 Series Pressure Switch
Custom Control Sensors
646DZE1-7011 Front
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646DCE Series Pressure Switch
Custom Control Sensors
646DCE1-7076
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674DE Series Pressure Switch
Custom Control Sensors
674DEM2-7065 Front
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604D Pressure Switch
Custom Control Sensors
604DJ1 Front
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646DZE Series Pressure Switch
Custom Control Sensors
646DZE1-7011 Front
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642DE8100 Series Pressure Switch
Custom Control Sensors
642DE8100
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673DE Series Pressure Switch
Custom Control Sensors
673DE8011 Side
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675D8000 Series Pressure Switch
Custom Control Sensors
675DE8Front
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672DE Series Pressure Switch
Custom Control Sensors
672DE1 Left Side
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675DE Series Pressure Switch
Custom Control Sensors
675DE8Front
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6900DZ Series Pressure Switch
Custom Control Sensors
6900DZE
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604DZ-7011 Series Pressure Switch
Custom Control Sensors
604DJ1 Front
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6900DZE Series Pressure Switch
Custom Control Sensors
Custom Control Sensors Pressure Switch, 6900DZE Series
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675DE8000 Series Pressure Switch
Custom Control Sensors
675DE8Front
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642DE Series Pressure Switch
Custom Control Sensors
642DE
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674D Series Pressure Switch
Custom Control Sensors
Custom Control Sensors Differential Pressure Switch, 674D Series
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Junction Box - Hazardous Areas
Custom Control Sensors
Junction Box Front
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6403DZE Series Pressure Switch
Custom Control Sensors
6403TUE Front
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605D Series Pressure Switch
Custom Control Sensors
605D tiny
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605DZ-7011 Series Pressure Switch
Custom Control Sensors
605D tiny
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Junction Box - General-purpose Areas
Custom Control Sensors
Junction Box Front
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Differential Pressure Switches

Differential pressure switches are designed to monitor the pressure difference between two points in a system and actuate an electrical contact when that differential reaches a preset value. Unlike gauge pressure switches that reference atmospheric pressure, differential models compare two independent pressure sources. These switches are commonly configured with two pressure ports—high and low—and are available in various sensing ranges and configurations to suit different system requirements.

In industrial environments, differential pressure switches are essential for detecting flow restrictions, filter conditions, pump efficiency, or system imbalances. They provide a reliable means of monitoring process performance and protecting equipment by initiating alarms, shutdowns, or control signals when pressure differentials exceed safe thresholds. Their precise operation supports automation, reduces manual monitoring, and helps prevent system failures caused by blockages, leaks, or component wear.

Built for demanding conditions, differential pressure switches often feature rugged housings, corrosion-resistant wetted materials, and adjustable setpoints. Many models are available with explosion-proof, weatherproof, or hermetically sealed enclosures to support installation in hazardous or outdoor environments. These switches can operate in a wide range of temperatures and pressure classes, making them suitable for both liquid and gas service.

Typical applications include monitoring across filters in HVAC and water treatment systems, pump suction/discharge differential monitoring in chemical processing and oil and gas operations, and detecting flow conditions in compressed air, steam, and hydraulic systems. Their ability to provide early warning and trigger protective actions makes differential pressure switches a critical component in industrial safety and process control.