Ashcroft A-Series Watertight Pressure Switch

Ashcroft A-Series Watertight pressure switches are designed for pressure control in harsh applications and is used throughout general process and industrial markets globally due to the switch’s reliability, performance and safety.

CategoryProcess Instrumentation
  • Quoted to your quantity
  • Documentation on request
  • International delivery

Product Overview

Ashcroft A-Series Watertight pressure switches are designed for pressure control in harsh applications and is used throughout general process and industrial markets globally due to the switch’s reliability, performance and safety.

The Ashcroft A-Series pressure switch has been designed to be customised as an ideal solution for this type of pressure measurement.

Ashcroft A-Series Watertight Pressure Switch – Applications

  • Offshore oil rigs
  • Chemical and petrochemical plants
  • Pulp and papermills
  • Autoclaves and sterilizers
  • Rail and heavy vehicles
  • Speciality machinery and equipment

The Ashcroft A-Series pressure switch should ideally be used in temperatures ranging from –40 to +100°C and at very low temperatures.

Ashcroft A-Series Watertight Pressure Switch – Features

  • Compact size
  • 316 stainless steel construction
  • Pressure ranges from vacuum to 15,000 psi
  • Factory set or field adjustable setpoints
  • Wide operating temperature range (–40°C to 100°C)
  • Precision snap-acting micro switch
  • SPDT or DPDT switching
  • UL, CSA listed models
  • CE and ROHS compliant
  • CRN models available (up to 10,000 psi)
  • SIL 3 capable

ASHCROFT A-Series Watertight – How To Order

Here is a typical ordering example for an Ashcroft A-Series Watertight pressure switch – for technical support, specification and sales contact our team.

Ashcroft Switch APS N4 1H 012C S 02 30# – 15 R – X6B

  • Function : Pressure switch, single setpoint, fixed deadband, field adjustable (APS)
  • Enclosure : Watertight 316 SS body (N4)
  • Microswitch : Single switch – SPDT, Higher Current – 5A @ 125/250 Vac, 5A @ 28 Vdc resistive, 3A @ 28 Vdc inductive. (1H)
  • Electrical Connection: ½ NPT male conduit connection with 18 AWG wires. 12˝ lead wires. Specify wire length in inches. (012C)
  • Actuator Seal : 316 SS welded Diaphragm, ranges ≤200 psi (S)
  • Pressure Connection : 1⁄4 NPT Male (02)
  • Switch Range : 30 psi (30#)
  • Setpoint: 5 characters maximum representing setpoint of the switch in the same units as the range of the switch. For setpoints in Vacuum specify as “– ”pressure. If no setpoint is required on an APA switch use either “NSR” or “NSD.” If direction is not known use “NSR” as the default. (15)
  • Setpoint Direction: Rising Pressure (Increasing pressure, decreasing vacuum) (R)
  • Options: Cleaned for oxygen service (X6B)

Ashcroft

Watch how Ashcroft pressure gauges and temperature instruments protect people in all industries and every environment.

Ashcroft & the Water Industry

Ashcroft gauges monitor pressure in filtration, flow and level applications including pumps, control systems, filters and heat exchangers – providing process pressure measurement for hydrostatic pressure, filter monitoring or regulating flow and deionized water.

Ashcroft Gauges – Instrumentation For Water & Waste Water Treatment Industries

Image : Mott MacDonald

Hazardous Areas

Hazardous area (ATEX & IECEx Certified) flameproof pressure gauges are available for potentially explosive atmospheres – T&D’s CompEX Certificated Sales Team supply worldwide oil, gas and petrochem projects, call us. ➡ Did you know? T&D distribute Water, Gas & Heat Meters from Itron, Elster and Kamstrup : visit our Metering section.

Technical Specifications

CategoryProcess Instrumentation
Ashcroft Model NumberAshcroft A-Series Watertight
SetpointFactory set or field adjustable
Setpoint Repeatability±2% of range (Additional setpoint shift of ±2% of range per 40°F from initial setpoint set at 70°F typical)
VibrationPassed MIL-STD-202G
Shock75G’s 10 milliseconds 3 axist
PistonStainless steel with Viton or Buna-N o-ring
Mechanical Life Piston Design>1,000,000 operations typical
Diaphragm316L Stainless steel
Mechanical Life Diaphragm Design>400,000 operations typical
Enclosure Material316L Stainless steel
Enclosure RatingNEMA 6, IP67
Pressure Connection1⁄8 NPTF, 1⁄4 NPTF, 1⁄4 NPTM, 1⁄8 NPTM, 1⁄2 MNPT, 1⁄2 FNPT, (7/16-20 SAE M), VCR, VCO, 3⁄4˝ Tri-Clamp®, 1.5˝ Tri-Clover®, 2.0˝ Tri-Clover G1⁄4 B, G1⁄4 A, Type E Stub end
Electrical OutputSPDT, or DPDT 5A or 3A 120VAC, 2A @ 30 VDC, gold contacts available
Electrical TerminationWire leads, spade terminals or custom cables, 1⁄2 NPT conduit connection with wire leads, Micro DIN with and without mating connector M20 x 1.5 conduit connection with wire leads
ApprovalsCRN: OF 14836.5C, CSA: 2454057 (LR55528), UL: E34743, CE, ROHS

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