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Switches • Flow Switches • Fixed Set Point Flow Switches

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  • Thomas Products, Ltd., Flow Switch Div.

    Thomas Products has a variety of flow switches designed for industrial use. The 1300 series flow switch has a range of uses including coolant systems, HVAC and the machine tool industry. Similar to the 1300, the 1100 series is used with HVAC systems and machine tool industries, but can also be used with other high-stress systems needing accurate flow measurement.The 2100 series flow switches are all-plastic, made from FDA-approved polysulfone, and are designed for liquid and/or "no flow" conditions. If metal compounds are needed, the 2000 series features the "Thomas tube" for straight line flow systems, available in brass and stainless steel.The 2600 series is a PVC, straight flow designed switch with a removable bonnet and return spring for different mounting altitudes.

  • Malema Sensors

    Malema has many fixed set point flow switches for air calibrations from 50 to 25,000 SCM and water calibrations from 1 ml/sec. to 7.0 gpm. The M60T, M61T, M61F and M701 are flow switches designed for right-angle systems, while the M50/55, M50T/M55T, M60, M60T, M62F, M64 and M64T are designed for in-line flow systems.

  • Gems Sensors & Controls

    Gems Sensors offer a FS-380P series flow switch with a low-pressure drop design, for systems with a 0.25-2.0 GPM flow rating. The housing is composed of polypropylene, and features a 3/8" NPT male and a 1/4" quick disconnect male setting.  The F380P is designed for multiple industries including HVAC/coolant systems, dispensing equipment, water purification, beverage dispensing and distillery systems.

  • Orange Research, Inc.

    Orange Research has a set of fixed set point flow switches with piston sensors for liquids. Switches are available in brass and stainless steel, and have set points ranging from 0.1 to 1.5 GPM.