D-Series NEMA 4X Watertight Differential Pressure Switch

The Ashcroft® D4 differential pressure switch is designed for use on most applications requiring reliability and long-cycle life where monitoring of differential pressure is required. Ideal for satisfying requirements for differential pressure control, shutdown or alarm operations.

Key Features:
  • Adjustable setpoints from 15%-100% of range
  • Fixed or limited adjustable deadband
  • Wide selection of switch elements
  • Stainless Steel, Buna, Viton, and Teflon diaphragms available for compatibility
  • Internal set point lock screw
  • SIL3 Capable
  • FM, UL, CE, and CRN approved
  • RoHS compliant

Process Market:
Offshore Oil Rigs
Chemical and Petrochemical Plants
Pulp and Paper Mills
Power Plants
Steel Mills
Water and Sewage Treatment Facilities

Industrial Market:
Pumps, Compressors and Turbines
Boilers and Burners
Degreasers and Evaporators
Recovery Systems
Reverse Osmosis Systems / Filters
Food Processing
Ground Support Equipment
Hydraulic and Lubrication Systems
Heating and Air Conditioning
Marine Equipment
Specialized OEM Equipment


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