Ashcroft Multifunction Pressure Switch, P-Series
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P-Series NEMA 7/9 Explosion Proof Pressure Switch

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

Ashcroft Multifunction Pressure Switch, P-Series Ashcroft Multifunction Pressure Switch, P-Series

The Ashcroft® P-series pressure switch was designed for use with harsh applications where uncompromising protection is required.

This accurate and reliable switch provides long-cycle life, while its rugged, explosion-proof housing provides superior protection. 

This switch is ideal for pressure control, shutdown or alarm operations.

Features
  • NEMA 7 & 9 Explosion Proof Enclosure
  • Dual chamber design allows for field calibration to be performed safely, even with power connected
  • Ranges from vacuum to 3000 psi
  • Wide selection of switch elements
  • Stainless Steel, Buna, Viton, Teflon and Monel diaphragms available for compatibility
  • UL and CSA hazardous approvals
  • CRN approved
  • RoHS Compliant
  • NSF-61 Compliant

Specifications

Brand

Setpoint Repeatability (Accuracy)

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

Deadband

  • Fixed or Adjustable

Process Connection

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

Pressure Range

  • Vacuum to 3,000 psi

Enclosure Rating

  • NEMA 7/9, IP66

Approvals & Certifications

  • CSA
  • UL
  • CE
  • NSF 61 Compliant
  • RoHS

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)

Electrical Termination

  • 3/4 NPT Female (STD.)
  • 1/2 NPT Female, M20 X 1.5 (OPT.)

Enclosure Material

  • Epoxy Coated Aluminum

Diaphragm/Actuator Material

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

Set Point - Decreasing

  • bar: 0 to 206.8
  • inH₂O: 30 to 150
  • kPa: 0 to 20.684
  • psi: 0 to 3,000

Set Point - Increasing

  • bar: 0 to 206.8
  • inH₂O: 30 to 150
  • kPa: 0 to 20,684
  • psi: 0 to 3,000

Process Connection Material

  • Pressure Switches: 316L SS or Monel® for psi ranges; Epoxy coated carbon steel or 316L SS for IW ranges
  • Differential Switches: Nickel plated brass or 316L SS for psid ranges; Epoxy coated carbon steel or 316L SS for IWD ranges

Ambient Temperature

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

  • Process Market:
    • Refineries
    • Chemical & Petrochemical plants
    • Water & Sewage Treatment Facilities
    • Steel Mills
  • Industrial Market:
    • Pumps, Compressors & Turbines
    • Boilers & Burners
    • Reverse Osmosis Systems

Documentation

Data Sheet

Instruction Manuals

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