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liquid pressure switch / differential / for the chemical industry / for compressors
PP series



  • Fluid:

    for liquids

  • Technology:


  • Applications:

    for the chemical industry, for compressors, for the petrochemical industry, for pumps

  • Other characteristics:

    adjustable, explosion-proof, IP66

  • Process temperature:

    Max.: 300 °F (149 °C)

    Min.: 0 °F (-18 °C)

  • Pressure range:

    Max.: 3,000 psi

    Min.: 0 psi


The type P series NEMA 7 pressure switches watertight & explosion proof enclosure. It has a dual chamber design that allows set point changes to be made safely even with power connected . It is composed of standard pressure material such as differential pressure ranges that has nickel plated brass and a differential inches of water ranges that has epoxy coated carbon steel. The set-points are adjustable from 15-100% of range. It is designed to to promote safety and reliability on all processes that utilizes the unit. The Nema 7 is most commonly made of a die cast aluminum enclosure.