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.
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 Pressure Switch – Product Specifications
| Ashcroft Model Number | Ashcroft A-Series Watertight |
| Setpoint | Factory 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) |
| Vibration | Passed MIL-STD-202G |
| Shock | 75G’s 10 milliseconds 3 axist |
| Piston | Stainless steel with Viton or Buna-N o-ring |
| Mechanical Life Piston Design | >1,000,000 operations typical |
| Diaphragm | 316L Stainless steel |
| Mechanical Life Diaphragm Design | >400,000 operations typical |
| Enclosure Material | 316L Stainless steel |
| Enclosure Rating | NEMA 6, IP67 |
| Pressure Connection | 1⁄8 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 Output | SPDT, or DPDT 5A or 3A 120VAC, 2A @ 30 VDC, gold contacts available |
| Electrical Termination | Wire 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 |
| Approvals | CRN: OF 14836.5C, CSA: 2454057 (LR55528), UL: E34743, CE, ROHS |
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 T&D.
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)
Pressure Gauges – Ashcroft commercial gauges can be used to measure pressure on fire protection sprinkler pipework systems.
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.
T&D service the global water utility industry with Electrical, Mechanical, Process & Instrumentation Equipment – this includes Water Metering, Heat Tracing, Gas Detection and Process Heating. Image : Mott MacDonald
Hazardous Areas
Ashcroft A-Series Watertight Pressure Switch – Data Sheet
Download
