liquid pressure switch / diaphragm / adjustable



  • Fluid:

    for liquids

  • Technology:


  • Other characteristics:


  • Process temperature:

    Max.: 185 °F (85 °C)

    Min.: -31 °F (-35 °C)

  • Pressure range:

    Max.: 600 psi

    Min.: 1.5 psi


The Whitman Controls P88G Economical Pressure switches are typically used in applications where reliable switch control supersedes accuracy of set point. These switches can be used in dry indoor applications or placed within an enclosure. Controlling on and off functions for fans and pumps where one may need a wide differential to prevent over-cycling is an ideal application use for the P88G.
Key Features:
• Consistent switch control
• Set point options: Factory set, field adjustable, or a combination
• Extensive operating temperature range
• Wide range of electrical interfaces
• SPDT or SPST availability
• Set point range: 1.5 to 500 PSIG
• Max System pressure: 600 PSIG
• Temperature range: -31oF to +185oF
(-35oC to +85oC)
• Amps: 1.25 Amps Max
• Sensor Element: Diaphragm
• Weight: 7.4 oz (varies with electrical interface selection)
• Cycling: Not to exceed 100 CPM
• Wetted Parts:
Diaphragm: Buna N and Brass
Seal: Loctite #271
Body with Fitting: Zinc alloy,
chromate finish
Optional Thread: ¼-18 BSP male, ⅛-27 NPT male