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

P-Series NEMA 7/9 Explosion Proof Pressure Switch from Ashcroft
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.


P-Series NEMA 7/9 Explosion Proof Pressure Switch 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



P-Series NEMA 7/9 Explosion Proof Pressure Switch Applications:

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



P-Series NEMA 7/9 Explosion Proof Pressure Switch Specifications:

Setpoint
  • Dual independent setpoints, fixed deadband
  • Single setpoint, adjustable deadband
  • Single setpoint, fixed deadband
Setpoint Repeatability (Accuracy)±1% of span (Additional setpoint shift of ±1% of range per 50°F from initial setpoint set at 70°F typical)
DeadbandFixed or adjustable
Enclosure RatingsNEMA 7/9, IP66
Enclosure MaterialEpoxy coated aluminum
Pressure Connection
  • 1/4 NPT Female and 1/2 NPT Male Combination
  • 1/4 NPT Female, 1/2 NPT Female,
Electrical Termination
  • ¾ NPT Female (STD.)
  • ½ NPT Female, M20 X 1.5 (OPT.)
Diaphragm/Actuator MaterialBuna-N®, Teflon®, Viton®, 316L stainless steel, or Monel®
Pressure RangesVacuum to 3,000 psi
Ambient Temperature Range-20°F to 150°F (-29°C to 65°C)
All units calibrated at 70°F
Process Temperature
  • 0°F to 150°F (Buna N or Teflon diaphragm)
  • 0°F to 300°F (Stainless steel or Monel diaphragm)
  • 20°F to 300°F (Viton diaphragm)


Download Ashcroft P-Series NEMA 7/9 Explosion Proof Pressure Switch Datasheet

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