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. It is equipped with a general purpose switch element. Physical specs include a watertight epoxy coated aluminum enclosure and Teflon actuator seal. Range and sensing include a -30/30 IW pressure range. Additional options for this configuration include factory adjusted setpoint, stainless steel tag, 2" pipe mounting bracket, and 1/2" NPTM, 1/4" NPTF 316SS pressure connection (combination).

$497.79

Should ship between 05 Dec and 19 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 general purpose switch element. It is built with a watertight epoxy coated aluminum enclosure and Teflon actuator seal. Sensing supports a 100 psi pressure range. Additional options include factory adjusted setpoint, paper tag, and 1/2" NPTF 316SS pressure connection.

$343.63

Should ship between 05 Dec and 19 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 general purpose switch element. Construction includes a watertight epoxy coated aluminum enclosure and Teflon actuator seal. It is rated for a 15 psi pressure range. Additional options on this model include factory adjusted setpoint, paper tag, and 1/2" NPTF 316SS pressure connection.

$343.63

Should ship between 05 Dec and 19 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 general purpose switch element. The unit is housed with a watertight epoxy coated aluminum enclosure and Teflon actuator seal. The unit covers a 30 psi pressure range. Additional options: factory adjusted setpoint, paper tag, and 1/2" NPTF 316SS pressure connection.

$343.63

Should ship between 05 Dec and 19 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 general purpose switch element. Physical specs include a watertight epoxy coated aluminum enclosure and Teflon actuator seal. Range and sensing include a 60 psi pressure range. Additional options for this configuration include factory adjusted setpoint, paper tag, and 1/2" NPTF 316SS pressure connection.

$343.63

Should ship between 05 Dec and 19 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 general purpose switch element. It is built with a watertight epoxy coated aluminum enclosure and Teflon actuator seal. Sensing supports a 3,000 psi pressure range. Additional options include factory adjusted setpoint, paper tag, and 1/2" NPTM, 1/4" NPTF 316SS pressure connection (combination).

$443.55

Should ship between 05 Dec and 19 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 general purpose switch element. Construction includes a watertight epoxy coated aluminum enclosure and Teflon actuator seal. It is rated for a 100 psi pressure range. Additional options on this model include factory adjusted setpoint and paper tag.

$293.71

Should ship between 05 Dec and 19 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 general purpose switch element. The unit is housed with a watertight epoxy coated aluminum enclosure and Teflon actuator seal. The unit covers a 60 psi pressure range. Additional options: factory adjusted setpoint and paper tag.

$293.71

Should ship between 05 Dec and 19 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 general purpose switch element. Physical specs include a watertight epoxy coated aluminum enclosure and Teflon actuator seal. Range and sensing include a 15 psi pressure range. Additional options for this configuration include factory adjusted setpoint and pilot light(s) top mounted.

$316.45

Should ship between 05 Dec and 19 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 general purpose switch element. It is built with a watertight epoxy coated aluminum enclosure and Teflon actuator seal. Sensing supports a 30 psi pressure range. Additional options include factory adjusted setpoint and pilot light(s) top mounted.

$316.45

Should ship between 05 Dec and 19 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 general purpose switch element. Construction includes a watertight epoxy coated aluminum enclosure and Teflon actuator seal. It is rated for a 30 psi pressure range. Additional options on this model include factory adjusted setpoint, range scale, and 1/2" NPTF 316SS pressure connection.

$338.30

Should ship between 05 Dec and 19 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 general purpose switch element. The unit is housed with a watertight epoxy coated aluminum enclosure and Teflon actuator seal. The unit covers a 100 psi pressure range. Additional options: factory adjusted setpoint, range scale, and 1/2" NPTM, 1/4" NPTF 316SS pressure connection (combination).

$363.30

Should ship between 05 Dec and 19 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 general purpose switch element. Physical specs include a watertight epoxy coated aluminum enclosure and Teflon actuator seal. Range and sensing include a 15 psi pressure range. Additional options for this configuration include factory adjusted setpoint, range scale, and 1/2" NPTM, 1/4" NPTF 316SS pressure connection (combination).

$363.30

Should ship between 05 Dec and 19 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 general purpose switch element. It is built with a watertight epoxy coated aluminum enclosure and Teflon actuator seal. Sensing supports a 200 psi pressure range. Additional options include factory adjusted setpoint, range scale, and 1/2" NPTM, 1/4" NPTF 316SS pressure connection (combination).

$363.30

Should ship between 05 Dec and 19 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 general purpose switch element. Construction includes a watertight epoxy coated aluminum enclosure and Teflon actuator seal. It is rated for a 60 psi pressure range. Additional options on this model include factory adjusted setpoint, range scale, and 1/2" NPTM, 1/4" NPTF 316SS pressure connection (combination).

$363.30

Should ship between 05 Dec and 19 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 general purpose switch element. The unit is housed with a watertight epoxy coated aluminum enclosure and Teflon actuator seal. The unit covers a 30 psi pressure range. Additional options: factory adjusted setpoint, range scale, cleaned for oxygen service, and 1/2" NPTF 316SS pressure connection.

$406.71

Should ship between 05 Dec and 19 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 general purpose switch element. Physical specs include a watertight epoxy coated aluminum enclosure and Teflon actuator seal. Range and sensing include a 60 psi pressure range. Additional options for this configuration include factory adjusted setpoint, range scale, cleaned for oxygen service, and 1/2" NPTF 316SS pressure connection.

$406.71

Should ship between 05 Dec and 19 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 general purpose switch element. It is built with a watertight epoxy coated aluminum enclosure and Teflon actuator seal. Sensing supports a 30 psi pressure range. Additional options include factory adjusted setpoint, range scale, cleaned for oxygen service, and 1/2" NPTM, 1/4" NPTF 316SS pressure connection (combination).

$431.71

Should ship between 05 Dec and 19 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 general purpose switch element. Construction includes a watertight epoxy coated aluminum enclosure and Teflon actuator seal. It is rated for a -15/15 IW pressure range. Additional options on this model include factory adjusted setpoint and 316 SS pressure connection.

$429.76

Should ship between 05 Dec and 19 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 general purpose switch element. The unit is housed with a watertight epoxy coated aluminum enclosure and Teflon actuator seal. The unit covers a 60 IW pressure range. Additional options: factory adjusted setpoint, 316 SS pressure connection, and cleaned for oxygen service.

$498.17

Should ship between 05 Dec and 19 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 general purpose switch element. Physical specs include a watertight epoxy coated aluminum enclosure and Teflon actuator seal. Range and sensing include a 60 psi pressure range. Additional options for this configuration include left conduit connection.

$275.53

Should ship between 05 Dec and 19 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 general purpose switch element. It is built with a watertight epoxy coated aluminum enclosure and Teflon actuator seal. Sensing supports a 200 psi pressure range. Additional options include metric range on label and 1/2" NPTM, 1/4" NPTF 316SS pressure connection (combination).

$308.61

Should ship between 05 Dec and 19 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 general purpose switch element. Construction includes a watertight epoxy coated aluminum enclosure and Teflon actuator seal. It is rated for a 30 IMV pressure range. Additional options on this model include metric range on label and 1/2" NPTM, 1/4" NPTF 316SS pressure connection (combination).

$341.99

Should ship between 05 Dec and 19 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 general purpose switch element. The unit is housed with a watertight epoxy coated aluminum enclosure and Teflon actuator seal. The unit covers a 30 IW pressure range. Additional options: metric range on label and 1/2" NPTM, 1/4" NPTF 316SS pressure connection (combination).

$375.07

Should ship between 05 Dec and 19 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 general purpose switch element. Physical specs include a watertight epoxy coated aluminum enclosure and Teflon actuator seal. Range and sensing include a -30/30 IW pressure range. Additional options for this configuration include factory adjusted setpoint, stainless steel tag, 2" pipe mounting bracket, and 1/2" NPTM, 1/4" NPTF 316SS pressure connection (combination).

$497.79

Should ship between 05 Dec and 19 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 general purpose switch element. It is built with a watertight epoxy coated aluminum enclosure and Teflon actuator seal. Sensing supports a 100 psi pressure range. Additional options include factory adjusted setpoint, paper tag, and 1/2" NPTF 316SS pressure connection.

$343.63

Should ship between 05 Dec and 19 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 general purpose switch element. Construction includes a watertight epoxy coated aluminum enclosure and Teflon actuator seal. It is rated for a 15 psi pressure range. Additional options on this model include factory adjusted setpoint, paper tag, and 1/2" NPTF 316SS pressure connection.

$343.63

Should ship between 05 Dec and 19 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 general purpose switch element. The unit is housed with a watertight epoxy coated aluminum enclosure and Teflon actuator seal. The unit covers a 30 psi pressure range. Additional options: factory adjusted setpoint, paper tag, and 1/2" NPTF 316SS pressure connection.

$343.63

Should ship between 05 Dec and 19 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 general purpose switch element. Physical specs include a watertight epoxy coated aluminum enclosure and Teflon actuator seal. Range and sensing include a 60 psi pressure range. Additional options for this configuration include factory adjusted setpoint, paper tag, and 1/2" NPTF 316SS pressure connection.

$343.63

Should ship between 05 Dec and 19 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 general purpose switch element. It is built with a watertight epoxy coated aluminum enclosure and Teflon actuator seal. Sensing supports a 3,000 psi pressure range. Additional options include factory adjusted setpoint, paper tag, and 1/2" NPTM, 1/4" NPTF 316SS pressure connection (combination).

$443.55

Should ship between 05 Dec and 19 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 general purpose switch element. Construction includes a watertight epoxy coated aluminum enclosure and Teflon actuator seal. It is rated for a 100 psi pressure range. Additional options on this model include factory adjusted setpoint and paper tag.

$293.71

Should ship between 05 Dec and 19 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 general purpose switch element. The unit is housed with a watertight epoxy coated aluminum enclosure and Teflon actuator seal. The unit covers a 60 psi pressure range. Additional options: factory adjusted setpoint and paper tag.

$293.71

Should ship between 05 Dec and 19 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 general purpose switch element. Physical specs include a watertight epoxy coated aluminum enclosure and Teflon actuator seal. Range and sensing include a 15 psi pressure range. Additional options for this configuration include factory adjusted setpoint and pilot light(s) top mounted.

$316.45

Should ship between 05 Dec and 19 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 general purpose switch element. It is built with a watertight epoxy coated aluminum enclosure and Teflon actuator seal. Sensing supports a 30 psi pressure range. Additional options include factory adjusted setpoint and pilot light(s) top mounted.

$316.45

Should ship between 05 Dec and 19 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 general purpose switch element. Construction includes a watertight epoxy coated aluminum enclosure and Teflon actuator seal. It is rated for a 30 psi pressure range. Additional options on this model include factory adjusted setpoint, range scale, and 1/2" NPTF 316SS pressure connection.

$338.30

Should ship between 05 Dec and 19 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 general purpose switch element. The unit is housed with a watertight epoxy coated aluminum enclosure and Teflon actuator seal. The unit covers a 100 psi pressure range. Additional options: factory adjusted setpoint, range scale, and 1/2" NPTM, 1/4" NPTF 316SS pressure connection (combination).

$363.30

Should ship between 05 Dec and 19 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 general purpose switch element. Physical specs include a watertight epoxy coated aluminum enclosure and Teflon actuator seal. Range and sensing include a 15 psi pressure range. Additional options for this configuration include factory adjusted setpoint, range scale, and 1/2" NPTM, 1/4" NPTF 316SS pressure connection (combination).

$363.30

Should ship between 05 Dec and 19 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 general purpose switch element. It is built with a watertight epoxy coated aluminum enclosure and Teflon actuator seal. Sensing supports a 200 psi pressure range. Additional options include factory adjusted setpoint, range scale, and 1/2" NPTM, 1/4" NPTF 316SS pressure connection (combination).

$363.30

Should ship between 05 Dec and 19 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 general purpose switch element. Construction includes a watertight epoxy coated aluminum enclosure and Teflon actuator seal. It is rated for a 60 psi pressure range. Additional options on this model include factory adjusted setpoint, range scale, and 1/2" NPTM, 1/4" NPTF 316SS pressure connection (combination).

$363.30

Should ship between 05 Dec and 19 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 general purpose switch element. The unit is housed with a watertight epoxy coated aluminum enclosure and Teflon actuator seal. The unit covers a 30 psi pressure range. Additional options: factory adjusted setpoint, range scale, cleaned for oxygen service, and 1/2" NPTF 316SS pressure connection.

$406.71

Should ship between 05 Dec and 19 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 general purpose switch element. Physical specs include a watertight epoxy coated aluminum enclosure and Teflon actuator seal. Range and sensing include a 60 psi pressure range. Additional options for this configuration include factory adjusted setpoint, range scale, cleaned for oxygen service, and 1/2" NPTF 316SS pressure connection.

$406.71

Should ship between 05 Dec and 19 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 general purpose switch element. It is built with a watertight epoxy coated aluminum enclosure and Teflon actuator seal. Sensing supports a 30 psi pressure range. Additional options include factory adjusted setpoint, range scale, cleaned for oxygen service, and 1/2" NPTM, 1/4" NPTF 316SS pressure connection (combination).

$431.71

Should ship between 05 Dec and 19 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 general purpose switch element. Construction includes a watertight epoxy coated aluminum enclosure and Teflon actuator seal. It is rated for a -15/15 IW pressure range. Additional options on this model include factory adjusted setpoint and 316 SS pressure connection.

$429.76

Should ship between 05 Dec and 19 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 general purpose switch element. The unit is housed with a watertight epoxy coated aluminum enclosure and Teflon actuator seal. The unit covers a 60 IW pressure range. Additional options: factory adjusted setpoint, 316 SS pressure connection, and cleaned for oxygen service.

$498.17

Should ship between 05 Dec and 19 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 general purpose switch element. Physical specs include a watertight epoxy coated aluminum enclosure and Teflon actuator seal. Range and sensing include a 60 psi pressure range. Additional options for this configuration include left conduit connection.

$275.53

Should ship between 05 Dec and 19 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 general purpose switch element. It is built with a watertight epoxy coated aluminum enclosure and Teflon actuator seal. Sensing supports a 200 psi pressure range. Additional options include metric range on label and 1/2" NPTM, 1/4" NPTF 316SS pressure connection (combination).

$308.61

Should ship between 05 Dec and 19 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 general purpose switch element. Construction includes a watertight epoxy coated aluminum enclosure and Teflon actuator seal. It is rated for a 30 IMV pressure range. Additional options on this model include metric range on label and 1/2" NPTM, 1/4" NPTF 316SS pressure connection (combination).

$341.99

Should ship between 05 Dec and 19 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 general purpose switch element. The unit is housed with a watertight epoxy coated aluminum enclosure and Teflon actuator seal. The unit covers a 30 IW pressure range. Additional options: metric range on label and 1/2" NPTM, 1/4" NPTF 316SS pressure connection (combination).

$375.07

Should ship between 05 Dec and 19 Dec

Subject to factory lead times