liquid pressure switch / for gas / diaphragm / industrial
J205G Pressure Switch Whitman Controls Corporation



  • Fluid:

    for liquids, for gas

  • Technology:


  • Applications:

    industrial, for hydraulic applications, OEM, for boilers, for injection molding machines, sanitary wares, for pumps, for pneumatic applications, for the petrochemical industry, for the chemical industry, for compressors, for marine applications, HVAC, for lubricants, for railway applications

  • Other characteristics:

    adjustable, compact, IP65, IP67, IP66, stainless steel, adjustable, rugged, pre-wired, high-pressure, low-pressure, IP54, screw-in, miniature, high-precision, custom, dust-proof

  • Process temperature:

    Max.: 225 °F (107 °C)

    Min.: -65 °F (-54 °C)

  • Pressure range:

    Max.: 5,000 psi

    Min.: 0.8 psi


The Whitman Controls J205G High Pressure Low Set Point Pressure Switches are among our most versatile offering, affording the end user an extensive operating environment and a wide range of set point optionality. These switches can be exposed to high pressure without compromising integrity or switch functionality. Uses include gas bottle change switches and oil or water supply control. They are frequently used in pump and reservoir applications. The internals are stainless steel with a diaphragm o-ring that is available in numerous compounds.

Key Features:
• Overpressure feature, allowing the switch to be subject to high pressure without compromising integrity
• Set point options: Factory set, field adjustable, or a combination
• Extensive operating temperature range
• Wide range of electrical interfaces available
• SPDT or SPST availability
• Wide range of set point optionality

• Set point range: 0.80 to 800 PSIG
• Max System pressure: 5,000 PSIG
• Temperature range: -65oF to +225oF (-54oC to +107oC)
• Amps: 5 Amps Max
• Sensor Element: Diaphragm
• Weight: 4.0 oz (varies slightly with electrical interface selection)
• Cycling: Not to exceed 100 CPM
• Wetted Parts:
Diaphragm: 316 Stainless steel
Seal: Loctite #271
Body / Fitting: 303 Stainless steel
O-Ring: Buna N Standard (Special material available upon request)
Standard Thread: 1/8-27 NPT male