Name: Hydrogen Pressure Switches - A Series
Availability: InStock

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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)

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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

Hydrogen Pressure Switches - A Series