About Flow Switches

SOR flow switches have proven to be workhorses in the process instrumentation industry. They are ruggedly built to exacting standards and provide long-lasting service. Our flow switches can be used in a wide range of pipe sizes and process configurations. Mechanical vane type switches are designed specifically for liquid process medias. Our electronic instruments can detect both liquid and gas process flow and are field selectable and adjustable.


Designed for OEM Application

  • Depending on your flow switch needs, SOR can provide models for a variety of applications such as flow/no flow, adjustable set points and even liquid level measurements


Consistently Reliable

  • Stainless steel and hermetically sealed models available
  • Adjustable set points and flow/no flow units offered
  • No additional seal required


Long-Lasting Construction

  • Available NACE construction on mechanical units
  • CSA Certified (US and Canada) ANSI/ISA or ATEX, approved and optional IEC approved models available
  • Stainless steel nameplate permanently attached to switch


Works in a variety of applications

  • Low-flow alarm/monitoring
  • Waste gas burn low monitoring
  • Vapor recovery hose hook-up verification


Worldwide Service and Fast Delivery

  • Factory Sales Engineers and Representatives provide prompt service
  • Standard shipping in 7 to 10 days, including custom-engineered orders
  • Emergency shipments available


World Class Customer Service

  • An SOR Sales Engineer can advise you on which flow switch model will best meet your application requirements