Ashcroft Differential Pressure Switch, D-Series Nema 4
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D-Series NEMA 4X Watertight Differential Pressure Switch

Brand: Ashcroft Inc
Does not ship to OH, United States

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.

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

Specifications

Brand

Set Point

  • Single setpoint - Factory set or field adjustable

Setpoint Repeatability (Accuracy)

  • ±1% of span (Additional setpoint shift of ±1% of range per 50° F from initial setpoint set at 70° F typical)

Enclosure Material

  • Epoxy Coated Aluminum
  • Optional: 316 stainless steel (NEMA 7/9 only)

Diaphragm/Actuator Material

  • Buna-N
  • Teflon
  • Viton
  • 316L Stainless Steel
  • Monel

Process Connection

  • 1/4 NPT Female and 1/2 NPT Male Combination
  • 1/4 NPT Female, 1/2 NPT Female

Electrical Termination

  • 3/4 NPT Female (STD.)
  • 3/4 x 1/2 NPT Female reducing bushing (OTP.)

Ambient Temperature

  • -20° to 150° F (-29° to 65° C)
  • All units calibrated at 70° F

Process Temperature

  • 0° to 150° F (Buna N or Teflon diaphragm)
  • 0° to 300° F (Stainless steel or Monel diaphragm)
  • 20° to 300° F (Viton diaphragm)

Pressure Range

  • 30 in. H2O differential thru 600 psid

Enclosure Rating

  • NEMA 4X / IP66

Approvals & Certifications

  • CSA
  • FM
  • UL
  • ATEX
  • IECEx
  • CE/UKCA
  • RoHS
  • SIL 3 Capable
  • NSF 61 Compliant

  • Process Market:
    • Offshore Oil Rigs
    • Chemical & Petrochemical Plants
    • Pulp and Paper Mills
    • Power Plants
    • Steel Mills
    • Water & Sewage Treatment Facilities
  • Industrial Market:
    • Pumps, Compressors & Turbines
    • Boilers & Burners
    • Degreasers & Evaporators
    • Recovery Systems
    • Reverse Osmosis Systems / Filters
    • Food Processing
    • Ground Support Equipment
    • Hydraulic & Lubrication Systems
    • Heating & Air Conditioning
    • Marine Equipment
    • Specialized OEM Equipment

Documentation

Data Sheet

Instruction Manuals

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