Harwil

Showing 1–12 of 22 results

  • Harwil CF-112 Chemical Feed Controller

    Harwil® type CF-112 chemical feed pump controllers are stand alone interface modules that automatically actuate a chemical feed pump when primary bulk fluid begins to flow. These modules can be used in isolated stand alone systems or as part of large complex systems. Typical uses are for metering and/or adding chemicals in both continuous and batch fluid systems such as: well water, drinking water, waste fluid processing, cooling tower pH/orp control, metal plating make up solutions, and boiler treatment additives.

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    $131.08
  • Harwil CF-12/1G Chemical Feed Controller

    Harwil® type CF-12/1G one gang chemical feed pump controllers are stand alone interface modules that automatically actuate a chemical feed pump when primary bulk fluid begins to flow. These modules can be used in isolated stand alone systems or as part of large complex systems. Typical uses are for metering and/or adding chemicals in both continuous and batch fluid systems such as: well water, drinking water, waste fluid processing, cooling tower pH/orp control, metal plating make up solutions, and boiler treatment additives.

    Data Sheet

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    $116.53
  • Harwil CF-12/2G Chemical Feed Pump Controller

    Harwil® type CF-12/2G two gang chemical feed pump controllers are stand alone interface modules that automatically actuate a chemical feed pump when primary bulk fluid begins to flow. These modules can be used in isolated stand alone systems or as part of large complex systems. Typical uses are for metering and/or adding chemicals in both continuous and batch fluid systems such as: well water, drinking water, waste fluid processing, cooling tower pH/orp control, metal plating make up solutions, and boiler treatment additives.

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  • Harwil CF-8/1G Chemical Feed Pump Controller

    Harwil® type CF-8/1G one gang chemical feed pump controllers are stand alone interface modules that automatically actuate a chemical feed pump when primary bulk fluid begins to flow. These modules can be used in isolated stand alone systems or as part of large complex systems. Typical uses are for monitoring fluid flow in air conditioning systems, cooling in data centers, chillers, fluid blending systems, natural gas, industrial refrigeration systems, pools & spas, scrubbers, and water treatment systems.

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  • Harwil CF-8/2G Chemical Feed Pump Controller

    Harwil® type CF-8/2G two gang chemical feed pump controllers are stand alone interface modules that automatically actuate a chemical feed pump when primary bulk fluid begins to flow. These modules can be used in isolated stand alone systems or as part of large complex systems. Typical uses are for monitoring fluid flow in air conditioning systems, cooling in data centers, chillers, fluid blending systems, natural gas, industrial refrigeration systems, pools & spas, scrubbers, and water treatment systems.

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  • Harwil L-21N Level Switch

    Harwil® type L-21N industrial level switches are low cost, high performance switches made from highly durable plastics. Commonly used on restoration tanks for carpet cleaners, they feature a variable liquid differential and a single point pump up/pump down level control. Interchangeable differential band modules, for all non L-21+ versions, allow for 5 minute on-site switching of differentials.  The unit below has a 5″ differential and fits most Hydramaster and BLUEline models.  Other differential lengths and configurations available.  Please call or request a quote.

    Data Sheet

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    Manufacturer Series
    Harwil L-21N/15A/5/AA/3FT(16-3)/.030F
    $126.88
  • Harwil L-21N/L-21VCR Level Switch

    Harwil® type L-21N & L-21VCR industrial level switches are low cost, high performance switches made from highly durable plastics. They feature a variable liquid differential and a single point pump up/pump down level control. Interchangeable differential band modules, for all non L-21+ versions, allow for 5 minute on-site switching of differentials from 1″ to 2″ to 3″ to 5″ in any sequence to satisfy variable operational requirements as they occur.

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    Item Type Moving or Non-Moving Parts Technology Body Material
    Industrial, OEM Moving Parts Float Plastic
  • Harwil L-30N/L-30CR Level Switch

     

    Harwil® type L-30N & L-30CR industrial level switches provide particle contamination resistance via a single convolute elastomeric flexible seal which is continuously flushed by the working fluid. These switches feature vertical or horizontal mounting, high/low liquid level alarms, pump up/pump down controls, solenoid valve controls, liquid level indication, and an optional filter boot.

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    Item Type Moving or Non-Moving Parts Technology Body Material
    Industrial Moving Parts Float Plastic
  • Harwil L-40N/L40VCR Level Switch

    Harwil® type L-40N & L-40VCR side and top mount switches are made of corrosion resistant plastic with an optional metal pin available in 316 stainless steel, Hastelloy C, titanium, Tantalum, or Teflon. They are ten times less sensitive from deposit and build-up of contaminants than sliding float models and are meant for use in particle contaminated fluids.

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    Item Type Moving or Non-Moving Parts Technology Body Material
    OEM Moving Parts Float Plastic
  • Harwil L-5/L-5SS Level Switch

     

    Harwil® type L-5 & L-5SS industrial level switches feature continuously adjustable float buoyancy control to allow use in fluids with specific gravity down to 0.6. Continuous buoyancy control allows switch activation at oil/water interface. These switches may be used in hazardous areas when used with intrinsically safe relays. They feature a high/low liquid level alarm, solenoid valve on/off control, and horizontal mounting.

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    Item Type Moving or Non-Moving Parts Technology Body Material
    Industrial Moving Parts Float Brass/Bronze, Stainless Steel
  • Harwil L-8N/L-8CR Level Switch

     

    Harwil® type L-8N & L-8CR industrial level switches feature continuously adjustable float buoyancy control to allow use in fluids with specific gravity down to 0.6. Continuous buoyancy control allows switch activation at oil/water interface. These switches may be used in hazardous areas when used with intrinsically safe relays. They feature a water/oil and foam/fluid interface switch point, a high/low liquid level alarm, solenoid valve on/off control, liquid level indication, direct pump control, and horizontal mounting.

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    Item Type Moving or Non-Moving Parts Technology Body Material
    Industrial Moving Parts Float Plastic
  • Harwil LC-1 General Purpose Pump Controller

    Harwil® type LC-1 provides a combination of any two Harwil liquid level switches and an electronic control module mounted in a weather-resistant box to create a ready-to-go system for the automatic filling or emptying of tanks or vessels. The system is composed of an electronic latching/unlatching control module, a NEMA 4 weather resistant box with two standard ½” seal tight flexible conduit fittings, and a secondary 10A SPDT relay output. Each system is provided with a complete, descriptive parts list and an installation and wiring diagram for both level switches and control module.

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