Weatherproof Pressure Switches

About Weatherproof Pressure Switches

SOR weatherproof pressure switches are designed to be weather tight for external use. They are built to stand up to the rigors of the environment and provide long-lasting and dependable service. Diaphragm type switches are recommended for most process applications, while pivot seal type weatherproof pressure switches perform best in fluid power (hydraulic) applications.


Field Proven for Long Working Life

  • Aluminum, carbon steel or stainless steel housings available
  • Precise quality standards from raw materials to finished switch


Wide Range of Standard Models

  • SOR has a weatherproof pressure switch to fit most any application where protection from the elements is vital to your process
  • Fixed range, adjustable set points and adjustable differential models available
  • Standard wetted parts are normally suited for air, water, oil and non-corrosive process media


Safety Certified to IEC 61508 (SIL)

  • Most models meet requirements for non-redundant use in SIL1 and SIL2 Safety Instrumented Systems


Engineered Solutions for Your Applications

  • Every SOR weatherproof pressure switch can be custom made to your exact specifications—talk to a factory Sales Engineer or your local Representative
  • If your application requires a weatherproof pressure switch for use in a corrosive process, optional components can be supplied


Simple to Use

  • Easy to install and calibrate – no special tools required
  • Factory calibration is free
  • Self-locking set point adjustment