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 switch features a dual sealed environment proof switch element. It is built with a watertight epoxy coated aluminum enclosure and Viton actuator seal. Sensing supports a 30 psi pressure range. Additional options include chained cover.

$420.00

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 sealed environment proof switch element. Construction includes a watertight epoxy coated aluminum enclosure and Viton actuator seal. It is rated for a 100 IW pressure range. Additional options on this model include FM approval.

$532.40

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 model includes a dual sealed environment proof switch element. The unit is housed with a watertight epoxy coated aluminum enclosure and Viton actuator seal. The unit covers a 10 IW pressure range. Additional options: FM approval.

$532.40

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. It is equipped with a dual sealed environment proof switch element. Physical specs include a watertight epoxy coated aluminum enclosure and Viton actuator seal. Range and sensing include a 10 IW pressure range. Additional options for this configuration include FM approval, factory adjusted setpoint, and 1/2" NPTM, 1/4" NPTF 316SS pressure connection (combination).

$637.01

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 high temperature 300°F switch element. It is built with a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. Sensing supports a 30 psi pressure range. Additional options include 1/2" NPTF 316SS pressure connection.

$427.84

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 high temperature 300°F 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 FM approval.

$382.61

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 high temperature 300°F switch element. The unit is housed with a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. The unit covers a 60 psi pressure range. Additional options: FM approval.

$382.61

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 high temperature 300°F 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 FM approval, factory adjusted setpoint, stainless steel tag, 316 SS pressure connection, and 2" pipe mounting bracket.

$605.17

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 high temperature 300°F switch element. It is built with a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. Sensing supports a -30/30 IW pressure range. Additional options include factory adjusted setpoint, stainless steel tag, 316 SS pressure connection, and 2" pipe mounting bracket.

$575.48

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 high temperature 300°F 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 UL limit control to 600 psi.

$436.08

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 high temperature 300°F switch element. The unit is housed with a watertight epoxy coated aluminum enclosure and 316L stainless steel actuator seal. The unit covers a 100 psi pressure range.

$427.84

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 high temperature 300°F switch element. Physical specs include a watertight epoxy coated aluminum enclosure and 316L stainless steel actuator seal. Range and sensing include a 200 psi pressure range.

$427.84

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 high temperature 300°F switch element. It is built with a watertight epoxy coated aluminum enclosure and 316L stainless steel actuator seal. Sensing supports a 60 psi pressure range.

$427.84

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 high temperature 300°F switch element. Construction includes a watertight epoxy coated aluminum enclosure and 316L stainless steel actuator seal. It is rated for a 30 psi pressure range. Additional options on this model include cleaned for oxygen service.

$496.25

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 high temperature 300°F switch element. The unit is housed with a watertight epoxy coated aluminum enclosure and 316L stainless steel actuator seal. The unit covers a 100 psi pressure range. Additional options: factory adjusted setpoint and 1/2" NPTM, 1/4" NPTF 316SS pressure connection (combination).

$507.45

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 high temperature 300°F switch element. Physical specs include a watertight epoxy coated aluminum enclosure and 316L stainless steel actuator seal. Range and sensing include a 30 psi pressure range. Additional options for this configuration include steam limit control to 300 psi and 1/2" NPTF 316SS pressure connection.

$536.14

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 high temperature 300°F switch element. It is built with a watertight epoxy coated aluminum enclosure and 316L stainless steel actuator seal. Sensing supports a 100 psi pressure range. Additional options include stainless steel tag and 1/2" NPTF 316SS pressure connection.

$520.86

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 high temperature 300°F switch element. Construction includes a watertight epoxy coated aluminum enclosure and Teflon actuator seal. It is rated for a 400 psi pressure range. Additional options on this model include 1/2" NPTF 316SS pressure connection.

$453.12

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 high temperature 300°F switch element. The unit is housed with a watertight epoxy coated aluminum enclosure and Viton actuator seal. The unit covers a 100 psi pressure range. Additional options: 1/2" NPTM, 1/4" NPTF 316SS pressure connection (combination).

$419.69

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 high temperature 300°F switch element. Physical specs include a watertight epoxy coated aluminum enclosure and Viton actuator seal. Range and sensing include a -15/15 IW pressure range. Additional options for this configuration include wall mounting bracket inH2O, factory adjusted setpoint, 3/4" to 1/2" reducing bushing, stainless steel tag, and 1/2" NPTM, 1/4" NPTF 316SS pressure connection (combination).

$634.50

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 high temperature 300°F switch element. It is built with a watertight epoxy coated aluminum enclosure and Viton actuator seal. Sensing supports a -15/15 IW pressure range. Additional options include chained cover, factory adjusted setpoint, stainless steel tag, and 1/2" NPTM, 1/4" NPTF 316SS pressure connection (combination).

$625.76

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 high temperature 300°F switch element. Construction includes a watertight epoxy coated aluminum enclosure and Viton actuator seal. It is rated for a 200 psi pressure range. Additional options on this model include FM approval.

$399.45

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 high temperature 300°F switch element. The unit is housed with a watertight epoxy coated aluminum enclosure and Viton actuator seal. The unit covers a 30 IW pressure range. Additional options: FM approval.

$507.45

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 high temperature 300°F switch element. Physical specs include a watertight epoxy coated aluminum enclosure and Viton actuator seal. Range and sensing include a 200 psi pressure range. Additional options for this configuration include FM approval and factory adjusted setpoint.

$429.14

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 sealed environment proof switch element. It is built with a watertight epoxy coated aluminum enclosure and Viton actuator seal. Sensing supports a 30 psi pressure range. Additional options include chained cover.

$420.00

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 sealed environment proof switch element. Construction includes a watertight epoxy coated aluminum enclosure and Viton actuator seal. It is rated for a 100 IW pressure range. Additional options on this model include FM approval.

$532.40

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 model includes a dual sealed environment proof switch element. The unit is housed with a watertight epoxy coated aluminum enclosure and Viton actuator seal. The unit covers a 10 IW pressure range. Additional options: FM approval.

$532.40

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. It is equipped with a dual sealed environment proof switch element. Physical specs include a watertight epoxy coated aluminum enclosure and Viton actuator seal. Range and sensing include a 10 IW pressure range. Additional options for this configuration include FM approval, factory adjusted setpoint, and 1/2" NPTM, 1/4" NPTF 316SS pressure connection (combination).

$637.01

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 high temperature 300°F switch element. It is built with a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. Sensing supports a 30 psi pressure range. Additional options include 1/2" NPTF 316SS pressure connection.

$427.84

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 high temperature 300°F 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 FM approval.

$382.61

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 high temperature 300°F switch element. The unit is housed with a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. The unit covers a 60 psi pressure range. Additional options: FM approval.

$382.61

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 high temperature 300°F 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 FM approval, factory adjusted setpoint, stainless steel tag, 316 SS pressure connection, and 2" pipe mounting bracket.

$605.17

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 high temperature 300°F switch element. It is built with a watertight epoxy coated aluminum enclosure and Buna-N actuator seal. Sensing supports a -30/30 IW pressure range. Additional options include factory adjusted setpoint, stainless steel tag, 316 SS pressure connection, and 2" pipe mounting bracket.

$575.48

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 high temperature 300°F 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 UL limit control to 600 psi.

$436.08

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 high temperature 300°F switch element. The unit is housed with a watertight epoxy coated aluminum enclosure and 316L stainless steel actuator seal. The unit covers a 100 psi pressure range.

$427.84

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 high temperature 300°F switch element. Physical specs include a watertight epoxy coated aluminum enclosure and 316L stainless steel actuator seal. Range and sensing include a 200 psi pressure range.

$427.84

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 high temperature 300°F switch element. It is built with a watertight epoxy coated aluminum enclosure and 316L stainless steel actuator seal. Sensing supports a 60 psi pressure range.

$427.84

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 high temperature 300°F switch element. Construction includes a watertight epoxy coated aluminum enclosure and 316L stainless steel actuator seal. It is rated for a 30 psi pressure range. Additional options on this model include cleaned for oxygen service.

$496.25

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 high temperature 300°F switch element. The unit is housed with a watertight epoxy coated aluminum enclosure and 316L stainless steel actuator seal. The unit covers a 100 psi pressure range. Additional options: factory adjusted setpoint and 1/2" NPTM, 1/4" NPTF 316SS pressure connection (combination).

$507.45

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 high temperature 300°F switch element. Physical specs include a watertight epoxy coated aluminum enclosure and 316L stainless steel actuator seal. Range and sensing include a 30 psi pressure range. Additional options for this configuration include steam limit control to 300 psi and 1/2" NPTF 316SS pressure connection.

$536.14

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 high temperature 300°F switch element. It is built with a watertight epoxy coated aluminum enclosure and 316L stainless steel actuator seal. Sensing supports a 100 psi pressure range. Additional options include stainless steel tag and 1/2" NPTF 316SS pressure connection.

$520.86

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 high temperature 300°F switch element. Construction includes a watertight epoxy coated aluminum enclosure and Teflon actuator seal. It is rated for a 400 psi pressure range. Additional options on this model include 1/2" NPTF 316SS pressure connection.

$453.12

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 high temperature 300°F switch element. The unit is housed with a watertight epoxy coated aluminum enclosure and Viton actuator seal. The unit covers a 100 psi pressure range. Additional options: 1/2" NPTM, 1/4" NPTF 316SS pressure connection (combination).

$419.69

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 high temperature 300°F switch element. Physical specs include a watertight epoxy coated aluminum enclosure and Viton actuator seal. Range and sensing include a -15/15 IW pressure range. Additional options for this configuration include wall mounting bracket inH2O, factory adjusted setpoint, 3/4" to 1/2" reducing bushing, stainless steel tag, and 1/2" NPTM, 1/4" NPTF 316SS pressure connection (combination).

$634.50

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 high temperature 300°F switch element. It is built with a watertight epoxy coated aluminum enclosure and Viton actuator seal. Sensing supports a -15/15 IW pressure range. Additional options include chained cover, factory adjusted setpoint, stainless steel tag, and 1/2" NPTM, 1/4" NPTF 316SS pressure connection (combination).

$625.76

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 high temperature 300°F switch element. Construction includes a watertight epoxy coated aluminum enclosure and Viton actuator seal. It is rated for a 200 psi pressure range. Additional options on this model include FM approval.

$399.45

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 high temperature 300°F switch element. The unit is housed with a watertight epoxy coated aluminum enclosure and Viton actuator seal. The unit covers a 30 IW pressure range. Additional options: FM approval.

$507.45

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 high temperature 300°F switch element. Physical specs include a watertight epoxy coated aluminum enclosure and Viton actuator seal. Range and sensing include a 200 psi pressure range. Additional options for this configuration include FM approval and factory adjusted setpoint.

$429.14

Should ship between 08 Dec and 22 Dec

Subject to factory lead times