7PSD Differential Switch

Model Number: 7PSD

  • Ranges 0-1.5 WC/DP - 0-150 WC/DP
  • NEMA 4X & 12 housing
  • Class I, Div. I, Gr. C & D available
  • Up to four SPDT contacts
  • Various wetted materials available


  • Designed for low differential pressure applications
  • Cast-aluminum housing available in explosion-proof or weather-tight options
  • Frictionless switching mechanism, which amplifies the movement of the switching element, resulting in improved life, repeatability, and lower deadbands.
  • Accommodates up to four full-size SPDT electric switches, which are available in a variety of configurations, including:  adjustable deadband, DPDT, high/low operation, & manual reset
  • Switch configurations can be supplied with low deadband, high direct current ratings, gold contacts, hermetically-sealed contacts
  • Standard differential pressure-sensing element constructed of  aluminum alloy using a strong Buna-N elastomer diaphragm (other diaphragm and wetted materials are available)