Quality Lab


      LD-Series NEMA 4 Differential…

      LD-Series NEMA 4 Differential Pressure Switch

      LD-Series NEMA 4 Differential Pressure Switch

      The Ashcroft® LD differential pressure switch is designed for applications requiring high reliability, safety and accuracy. It's straight forward design facilitates easy field installation and calibration, making it most suitable for pressure control, safety shutdown or alarm operations.

      Key Features:

      • Wide selection of switch elements and wetted materials
      • Multiple process connections available
      • Adjustable setpoints from 15%-100% of range
      • Fixed or adjustable deadbands


      • Accuracy: ±1% full scale
      • IP66 (NEMA 4X) aluminum enclosure
      • Single or dual setpoints
      • Differential pressure ranges: 75 mbar thru 28 bar 


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

      Process Market:

      • Refineries
      • Chemical and Petrochemical Plants
      • Pulp and Paper Mills
      • Power Plants
      • Steel Mills
      • Water and Sewage Treatment Facilities

      Industrial Market:

      • Pumps, Compressors and Turbines
      • Dairies and Breweries
      • Boilers and Burners
      • Reverse Osmosis Systems
      • Filters and Presses
      • Paint Spraying Equipment
      • Specialized OEM Equipment

      Medical and Life Sciences Market:

      • Pharmaceutical Plants

      Certificates & Approvals

      • CE
      • CSA
      • FM
      • RoHS
      • UL