Ashcroft F-Series NEMA 7 Pressure Switch
Ashcroft F-Series NEMA 7 pressure switches are designed for pressure control in harsh or hazardous applications where shutdown, control or alarms and is used throughout general process and industrial markets globally due to the switch’s reliability, performance and safety.
The Ashcroft F-Series pressure switch has been designed to be customised as an ideal solution for this type of pressure measurement.
Ashcroft F-Series NEMA 7 Pressure Switch – Applications
- Offshore Oil Rigs
- Chemical and Petrochemical Plants
- Pulp and Paper Mills
- Pipelines
- Water and Wastewater Treatment Facilities
- Corrosive and Hazardous Locations
- Engines, Compressors and Turbines
- Specialized OEM Equipment F3
The Ashcroft F-Series pressure switch should ideally be used in temperatures ranging from –19 to +65°C.
Ashcroft F-Series NEMA 7 Pressure Switch – Features
- Explosion-proof enclosure with hermetically sealed switch elements provide added safety and reliability
- Wide selection of switch elements wetted materials
- Multiple process connections available
- Adjustable setpoints from 15%-100% of range
- Accuracy: ±1.00% full scale
- NEMA 3,4, 7 & 9 (IP66) anodized aluminum enclosure
- Single setpoint
- Pressure ranges: vacuum to 4,000 psi
- Fixed deadband
- 1/2″ NPT male conduit connection
- SPDT or DPDT switching option
Ashcroft F-Series NEMA 7Â Pressure Switch – Product Specifications
| Ashcroft Model Number | Ashcroft F-Series NEMA 7 |
| Setpoint | Factory set or field adjustable |
| Setpoint Repeatability | ±1% of full range (Additional setpoint shift of ±1% of range per 50 °F from initial setpoint set at 70 °F typical) |
| Diaphragm | Buna N, Viton, Teflon, SS |
| Enclosure Material | NEMA 3, 4, 7 & 9, IP66 Anodized aluminum for hazardous locations |
| Pressure Connection | 1/4 NPT Female, 1/2 NPT Female (Standard) |
| Ambient Temperature Range | –20°F to 150°F (–19 °C to 65 °C) All units calibrated at 70 °F |
| Process Temperature | Buna N (0-150ºF) Viton (20-200ºF) Teflon (0-150ºF) Stainless Steel Diaphragm/ Viton O-ring (0-150ºF) 316 Stainless Steel Welded (0-200ºF) Stainless Steel Piston / Viton O-ring (20-200ºF) |
| Pressure Ranges | Pressure: Vac-4000# |
| Approvals | UL CSA CE |
ASHCROFT F-Series NEMA 7 – How To Order
Here is a typical ordering example for an Ashcroft F-Series NEMA 7 pressure switch  – for technical support, specification and sales contact T&D.
Ashcroft Switch FPS N7 J B 25 XK3 30PSI
- Function: Pressure switch, single setpoint, fixed deadband (FPS)
- Enclosure : NEMA 3, 4, 7 & 9, IP66, Anodized aluminum for hazardous locations (N7)
- Switch Elements For FPS Controls : Hermetically Sealed, General Purpose, 11A, 125/250 Vac 5A, 30 Vdc (J)
- Actuator Seal : Buna N (B)
- Pressure Connection: 1/4 NPT Female  (25)
- Options: Pilot Lights  (XP3)
- Switch Range : 30 psi (30PSI)
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 F-Series NEMA 7 Pressure Switch
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