Ashcroft DDS-Series NEMA 7 Differential Pressure Switch

Ashcroft® DDS differential pressure switch senses low differential pressures between high differential pressure sources. This product is ideally suited for pressure level sensing, filter monitoring and pressure control.

Key Features:

  • Rugged enclosure
  • High static pressure capability up to 1500 psi
  • Field-adjustable setpoint; fixed deadband


  • Accuracy: ±1.00% full scale
  • NEMA 4X and 12; aluminum enclosure
  • Watertight or explosion proof versions Class 1, Div 1, Groups C & D
  • SPDT or DPDT setpoints
  • Differential pressure ranges: 1.5" IWD to 150" IWD

The DDS differential pressure switch is ideal where accurate and reliable pressure measurement are essential:

Process Applications:

  • Pipelines
  • Boilers

Process Applications:

  • Filter Monitoring and Control 
  • Pressure Level Sensing

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