Pressure Switch

Pressure switches open or close an electrical contact when pressure reaches a set point. They start and stop pumps and compressors, trigger alarms and shut equipment down when pressure is unsafe.

Pressure Switch Types

  • Mechanical switches – simple, reliable and no power needed
  • Electronic switches – adjustable set points and displays
  • Differential pressure switches – filter and flow monitoring
  • Vacuum switches – vacuum system control
  • Explosion-proof switches – hazardous areas

Choosing a Switch

Select set point range, deadband, electrical rating and wetted materials. Fixed or adjustable deadband affects cycling. Add snubbers for pulsating systems.

Centro carries pressure switches for pumps, compressors and process safety.

Related categories: Pressure Control | Pressure Transmitters | Gauges | Pressure Regulators | Pressure Control Accessories

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The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications. This model includes a dual narrow deadband switch element. The unit is housed with a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. The unit covers a 30 IMV pressure range. Additional options: 1/2" NPTM, 1/4" NPTF 316SS pressure connection (combination).

$424.68

Should ship between 08 Dec and 22 Dec

Subject to factory lead times

The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications. It is equipped with a dual narrow deadband switch element. Physical specs include a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. Range and sensing include a 30 IMV & 60 psi pressure range. Additional options for this configuration include 1/2" NPTM, 1/4" NPTF 316SS pressure connection (combination).

$424.68

Should ship between 08 Dec and 22 Dec

Subject to factory lead times

The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications. This switch features a dual narrow deadband switch element. It is built with a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. Sensing supports a 30 IW pressure range. Additional options include 1/2" NPTM, 1/4" NPTF 316SS pressure connection (combination).

$441.22

Should ship between 08 Dec and 22 Dec

Subject to factory lead times

The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications. Operating specifications include a dual narrow deadband switch element. Construction includes a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. It is rated for a -30/30 IW pressure range. Additional options on this model include 1/2" NPTM, 1/4" NPTF 316SS pressure connection (combination).

$441.22

Should ship between 08 Dec and 22 Dec

Subject to factory lead times

The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications. This model includes a dual narrow deadband switch element. The unit is housed with a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. The unit covers a 400 psi pressure range. Additional options: 1/2" NPTM, 1/4" NPTF 316SS pressure connection (combination).

$391.30

Should ship between 08 Dec and 22 Dec

Subject to factory lead times

The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications. It is equipped with a dual narrow deadband switch element. Physical specs include a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. Range and sensing include a 60 psi pressure range. Additional options for this configuration include 1/2" NPTM, 1/4" NPTF 316SS pressure connection (combination).

$391.30

Should ship between 08 Dec and 22 Dec

Subject to factory lead times

The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications. This switch features a dual narrow deadband switch element. It is built with a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. Sensing supports a 100 psi pressure range. Additional options include 1/2" NPTF 316SS pressure connection.

$416.29

Should ship between 08 Dec and 22 Dec

Subject to factory lead times

The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications. Operating specifications include a dual narrow deadband switch element. Construction includes a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. It is rated for a 200 psi pressure range. Additional options on this model include 1/2" NPTF 316SS pressure connection.

$416.29

Should ship between 08 Dec and 22 Dec

Subject to factory lead times

The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications. This model includes a dual narrow deadband switch element. The unit is housed with a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. The unit covers a 30 psi pressure range. Additional options: 1/2" NPTF 316SS pressure connection.

$416.29

Should ship between 08 Dec and 22 Dec

Subject to factory lead times

The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications. It is equipped with a dual narrow deadband switch element. Physical specs include a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. Range and sensing include a 30 IMV pressure range. Additional options for this configuration include 1/2" NPTF 316SS pressure connection.

$449.67

Should ship between 08 Dec and 22 Dec

Subject to factory lead times

The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications. This switch features a dual narrow deadband switch element. It is built with a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. Sensing supports a -15/15 IW pressure range. Additional options include wall mounting bracket inH2O.

$416.58

Should ship between 08 Dec and 22 Dec

Subject to factory lead times

The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications. Operating specifications include a dual narrow deadband switch element. Construction includes a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. It is rated for a 30 IW pressure range. Additional options on this model include wall mounting bracket inH2O, factory adjusted setpoint, and stainless steel tag.

$464.38

Should ship between 08 Dec and 22 Dec

Subject to factory lead times

The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications. This model includes a dual narrow deadband switch element. The unit is housed with a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. The unit covers a 10 IW pressure range. Additional options: wall mounting bracket inH2O, stainless steel tag, and 316 SS pressure connection.

$509.60

Should ship between 08 Dec and 22 Dec

Subject to factory lead times

The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications. It is equipped with a dual narrow deadband switch element. Physical specs include a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. Range and sensing include a 30 IMV pressure range. Additional options for this configuration include traceable calibration chart.

$485.40

Should ship between 08 Dec and 22 Dec

Subject to factory lead times

The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications. This switch features a dual narrow deadband switch element. It is built with a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. Sensing supports a 200 psi pressure range. Additional options include traceable calibration chart, factory adjusted setpoint, and 1/2" NPTF 316SS pressure connection.

$531.63

Should ship between 08 Dec and 22 Dec

Subject to factory lead times

The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications. Operating specifications include a dual narrow deadband switch element. Construction includes a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. It is rated for a 100 psi pressure range. Additional options on this model include traceable calibration chart and factory adjusted setpoint.

$481.70

Should ship between 08 Dec and 22 Dec

Subject to factory lead times

The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications. This model includes a dual narrow deadband switch element. The unit is housed with a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. The unit covers a 30 IMV pressure range. Additional options: traceable calibration chart and factory adjusted setpoint.

$515.09

Should ship between 08 Dec and 22 Dec

Subject to factory lead times

The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications. It is equipped with a dual narrow deadband switch element. Physical specs include a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. Range and sensing include a -15/15 IW pressure range. Additional options for this configuration include traceable calibration chart, factory adjusted setpoint, 3/4" to 1/2" reducing bushing, stainless steel tag, and 1/2" NPTF 316SS pressure connection.

$608.40

Should ship between 08 Dec and 22 Dec

Subject to factory lead times

The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications. This switch features a dual narrow deadband switch element. It is built with a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. Sensing supports a 15 psi pressure range. Additional options include traceable calibration chart, factory adjusted setpoint, metric range on label, paper tag, pilot light(s) top mounted, and 1/2" NPTM, 1/4" NPTF 316SS pressure connection (combination).

$590.02

Should ship between 08 Dec and 22 Dec

Subject to factory lead times

The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications. Operating specifications include a dual narrow deadband switch element. Construction includes a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. It is rated for a 100 psi pressure range. Additional options on this model include traceable calibration chart, factory adjusted setpoint, stainless steel tag, pilot light(s) top mounted, and 1/2" NPTF 316SS pressure connection.

$577.80

Should ship between 08 Dec and 22 Dec

Subject to factory lead times

The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications. This model includes a dual narrow deadband switch element. The unit is housed with a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. The unit covers a 200 psi pressure range. Additional options: traceable calibration chart, factory adjusted setpoint, and paper tag.

$487.03

Should ship between 08 Dec and 22 Dec

Subject to factory lead times

The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications. It is equipped with a dual narrow deadband switch element. Physical specs include a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. Range and sensing include a -30/30 IW pressure range. Additional options for this configuration include traceable calibration chart, 3/4" to 1/2" reducing bushing, stainless steel tag, and 1/2" NPTF 316SS pressure connection.

$578.71

Should ship between 08 Dec and 22 Dec

Subject to factory lead times

The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications. This switch features a dual narrow deadband switch element. It is built with a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. Sensing supports a 200 psi pressure range. Additional options include chained cover.

$366.66

Should ship between 08 Dec and 22 Dec

Subject to factory lead times

The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications. Operating specifications include a dual narrow deadband switch element. Construction includes a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. It is rated for a 30 psi pressure range. Additional options on this model include chained cover.

$366.66

Should ship between 08 Dec and 22 Dec

Subject to factory lead times

The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications. This model includes a dual narrow deadband switch element. The unit is housed with a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. The unit covers a 30 IMV pressure range. Additional options: 1/2" NPTM, 1/4" NPTF 316SS pressure connection (combination).

$424.68

Should ship between 08 Dec and 22 Dec

Subject to factory lead times

The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications. It is equipped with a dual narrow deadband switch element. Physical specs include a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. Range and sensing include a 30 IMV & 60 psi pressure range. Additional options for this configuration include 1/2" NPTM, 1/4" NPTF 316SS pressure connection (combination).

$424.68

Should ship between 08 Dec and 22 Dec

Subject to factory lead times

The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications. This switch features a dual narrow deadband switch element. It is built with a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. Sensing supports a 30 IW pressure range. Additional options include 1/2" NPTM, 1/4" NPTF 316SS pressure connection (combination).

$441.22

Should ship between 08 Dec and 22 Dec

Subject to factory lead times

The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications. Operating specifications include a dual narrow deadband switch element. Construction includes a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. It is rated for a -30/30 IW pressure range. Additional options on this model include 1/2" NPTM, 1/4" NPTF 316SS pressure connection (combination).

$441.22

Should ship between 08 Dec and 22 Dec

Subject to factory lead times

The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications. This model includes a dual narrow deadband switch element. The unit is housed with a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. The unit covers a 400 psi pressure range. Additional options: 1/2" NPTM, 1/4" NPTF 316SS pressure connection (combination).

$391.30

Should ship between 08 Dec and 22 Dec

Subject to factory lead times

The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications. It is equipped with a dual narrow deadband switch element. Physical specs include a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. Range and sensing include a 60 psi pressure range. Additional options for this configuration include 1/2" NPTM, 1/4" NPTF 316SS pressure connection (combination).

$391.30

Should ship between 08 Dec and 22 Dec

Subject to factory lead times

The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications. This switch features a dual narrow deadband switch element. It is built with a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. Sensing supports a 100 psi pressure range. Additional options include 1/2" NPTF 316SS pressure connection.

$416.29

Should ship between 08 Dec and 22 Dec

Subject to factory lead times

The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications. Operating specifications include a dual narrow deadband switch element. Construction includes a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. It is rated for a 200 psi pressure range. Additional options on this model include 1/2" NPTF 316SS pressure connection.

$416.29

Should ship between 08 Dec and 22 Dec

Subject to factory lead times

The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications. This model includes a dual narrow deadband switch element. The unit is housed with a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. The unit covers a 30 psi pressure range. Additional options: 1/2" NPTF 316SS pressure connection.

$416.29

Should ship between 08 Dec and 22 Dec

Subject to factory lead times

The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications. It is equipped with a dual narrow deadband switch element. Physical specs include a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. Range and sensing include a 30 IMV pressure range. Additional options for this configuration include 1/2" NPTF 316SS pressure connection.

$449.67

Should ship between 08 Dec and 22 Dec

Subject to factory lead times

The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications. This switch features a dual narrow deadband switch element. It is built with a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. Sensing supports a -15/15 IW pressure range. Additional options include wall mounting bracket inH2O.

$416.58

Should ship between 08 Dec and 22 Dec

Subject to factory lead times

The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications. Operating specifications include a dual narrow deadband switch element. Construction includes a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. It is rated for a 30 IW pressure range. Additional options on this model include wall mounting bracket inH2O, factory adjusted setpoint, and stainless steel tag.

$464.38

Should ship between 08 Dec and 22 Dec

Subject to factory lead times

The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications. This model includes a dual narrow deadband switch element. The unit is housed with a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. The unit covers a 10 IW pressure range. Additional options: wall mounting bracket inH2O, stainless steel tag, and 316 SS pressure connection.

$509.60

Should ship between 08 Dec and 22 Dec

Subject to factory lead times

The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications. It is equipped with a dual narrow deadband switch element. Physical specs include a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. Range and sensing include a 30 IMV pressure range. Additional options for this configuration include traceable calibration chart.

$485.40

Should ship between 08 Dec and 22 Dec

Subject to factory lead times

The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications. This switch features a dual narrow deadband switch element. It is built with a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. Sensing supports a 200 psi pressure range. Additional options include traceable calibration chart, factory adjusted setpoint, and 1/2" NPTF 316SS pressure connection.

$531.63

Should ship between 08 Dec and 22 Dec

Subject to factory lead times

The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications. Operating specifications include a dual narrow deadband switch element. Construction includes a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. It is rated for a 100 psi pressure range. Additional options on this model include traceable calibration chart and factory adjusted setpoint.

$481.70

Should ship between 08 Dec and 22 Dec

Subject to factory lead times

The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications. This model includes a dual narrow deadband switch element. The unit is housed with a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. The unit covers a 30 IMV pressure range. Additional options: traceable calibration chart and factory adjusted setpoint.

$515.09

Should ship between 08 Dec and 22 Dec

Subject to factory lead times

The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications. It is equipped with a dual narrow deadband switch element. Physical specs include a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. Range and sensing include a -15/15 IW pressure range. Additional options for this configuration include traceable calibration chart, factory adjusted setpoint, 3/4" to 1/2" reducing bushing, stainless steel tag, and 1/2" NPTF 316SS pressure connection.

$608.40

Should ship between 08 Dec and 22 Dec

Subject to factory lead times

The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications. This switch features a dual narrow deadband switch element. It is built with a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. Sensing supports a 15 psi pressure range. Additional options include traceable calibration chart, factory adjusted setpoint, metric range on label, paper tag, pilot light(s) top mounted, and 1/2" NPTM, 1/4" NPTF 316SS pressure connection (combination).

$590.02

Should ship between 08 Dec and 22 Dec

Subject to factory lead times

The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications. Operating specifications include a dual narrow deadband switch element. Construction includes a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. It is rated for a 100 psi pressure range. Additional options on this model include traceable calibration chart, factory adjusted setpoint, stainless steel tag, pilot light(s) top mounted, and 1/2" NPTF 316SS pressure connection.

$577.80

Should ship between 08 Dec and 22 Dec

Subject to factory lead times

The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications. This model includes a dual narrow deadband switch element. The unit is housed with a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. The unit covers a 200 psi pressure range. Additional options: traceable calibration chart, factory adjusted setpoint, and paper tag.

$487.03

Should ship between 08 Dec and 22 Dec

Subject to factory lead times

The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications. It is equipped with a dual narrow deadband switch element. Physical specs include a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. Range and sensing include a -30/30 IW pressure range. Additional options for this configuration include traceable calibration chart, 3/4" to 1/2" reducing bushing, stainless steel tag, and 1/2" NPTF 316SS pressure connection.

$578.71

Should ship between 08 Dec and 22 Dec

Subject to factory lead times

The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications. This switch features a dual narrow deadband switch element. It is built with a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. Sensing supports a 200 psi pressure range. Additional options include chained cover.

$366.66

Should ship between 08 Dec and 22 Dec

Subject to factory lead times

The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications. Operating specifications include a dual narrow deadband switch element. Construction includes a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. It is rated for a 30 psi pressure range. Additional options on this model include chained cover.

$366.66

Should ship between 08 Dec and 22 Dec

Subject to factory lead times