Hydrogen Pressure Switches - A Series

Ashcroft

  • Small size
  • Good for hazardous and corrosive applications
  • Easily configurable to meet your application requirements
  • SIL 3 capable
  • Explosion proof hydrogen pressure switches

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Hydrogen Pressure Switches - A Series

  • The Ashcroft® APA and APS explosion proof miniature pressure switches are designed for pressure control for applications in harsh or hazardous locations.
  • The explosion-proof construction provides superior protection, while its compact design allows for easy integration into custom equipment or systems.
  • Ideal for pressure alarm, shutdown or process control within hazardous areas when limited size and compatibility are required.

Key features

  • Compact, 316L stainless steel housing and wetted materials
  • Explosion-proof housing provides uncompromising protection
  • Pressure ranges from -15 psi (vacuum) to 15,000 psi
  • Wide operating temperature -40°F to 192°F (-40° to 89°C)
  • Factory set or field adjustable setpoint, fixed deadband
  • Expanded selection of pressure and electrical connections
  • SIL3 capable
  • FM,UL, CSA, ATEX and IECEx hazardous approvals
  • CE, CRN and 3A approved
  • RoHS compliant

Specifications

  • Setpoint: Single setpoint - factory set or field adjustable
  • Setpoint Repeatability (Accuracy):
    • ±2% of span. For ranges 200 through 15,000 psi
    • ±5% of span. For ranges -15/15 through 100 psi (additional setpoint shift ±2% of span per 40°F from initial setpoint setpoint at 70°F typical)
  • Diaphragm/actuator material: 316L stainless steel diaphragm or stainless steel piston w/Viton or Buna-N O-ring
  • Enclosure material: 316L stainless steel
  • Enclosure ratings: NEMA 4X, 7, 9, IP 67
  • Pressure Connection:
    • 1.5˝ Tri-Clover®, 2.0˝ Tri-Clover, G¼ B, G¼ A
    • Type E Stub end
    • ½ FNPT, 7⁄16-20 SAE M, VCR, VCO, ¾˝ Tri-Clamp®,
    • 1⁄8 NPTF, ¼ NPTF, ¼ NPTM, 1⁄8 NPTM, ½ MNPT,
  • Switch output: SPDT or DPDT
  • Deadband: Fixed
  • Pressure ranges: Vacuum -15 to 15,000 psi (1034 bar)
  • Ambient temperature range -40 °F to 192 °F (-40 ° to 89 °C)
  • Process temperature:
    • T5: -40°F to 192°F (-40°C to 89°C)
    • T6: -40°F to 165°F (-40°C to 74°C)

Application areas

  • Hydrogen applications
  • Pumps, compressors and turbines
  • Specialized OEM Equipment

Contact us

  • The Ashcroft® APA and APS explosion proof miniature pressure switches are designed for pressure control for applications in harsh or hazardous locations. Interested? Please contact Ashcroft by filling in the contact vendor or request for quote form.
Brand Ashcroft
Max Pressure (in bar) 1034
Ingress Protection Rating IP67
Compliant with ATEX, CE, CRN, CSA, FM, RoHS, SIL 3, UKCA, UL
Max Ambient Temperature (in °C) 89
Min Ambient Temperature (in °C) -40
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