Switches • Level Switches • Liquid Level Switches • Single Point Liquid Level Switches

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  • Madison Co.

    Madison Co. offers single point liquid level switches in the following configurations: stainless steel, plastic, miniature stainless steel float, miniature plastic float, and brass for hydrocarbons. Stainless steel full size liquid level switches come in diameter sizes ranging from 1/2" to 2", temperature limits ranging from 90 to 250°C, 1/4" NPT fittings, and 316 stainless steel stem materials. These switches have nominal current ratings ranging from 25 to 100 VA SPDT, float SG sizes ranging from 0.45 to 0.77, and pressure ratings ranging from 30 to 500 PSIG. Madison Co. also offers tilt float switches, side-mounted switches with spade connectors, interstitial switches, suspendible/submersible leak detection switches, etc.

  • Thomas Products, Ltd., Flow Switch Div.

    Thomas Products, Ltd. offers 4700H Series hazardous location, 4200 Series plastic, and 4200 Series metal liquid level switches. 4200 Series single level (plastic) switches are available in operating temperature limits ranging from -40 to 225°F, operating pressures ranging from 75 to 100 PSIG, and mounting sizes ranging from 1/8" to 3/8" NPT. These switches have a plastic stem construction, and they can be ordered with NPT/bulkheads with gasket or nut mountings.

  • Innovative Solutions, LLC

    Innovative Solutions LLC offers single point vertical and horizontal egress liquid level switches. L195 Series all-stainless steel single level switches are available with pressures up to 750 PSIG, temperature limits up to +300°F, currents up to 400 mA, and a standard SPST 50 VA construction. These switches are UL/FDA approved, excellent for chemical resistance, great for large tank applications, and are selectable to normally open/closed by inverting the float.

  • Gems Sensors & Controls

    Gems Sensors & Controls offers small and large size single point level switches. LS-1700TFE Series single-point level switches are constructed from corrosion resistant PTFE materials, and they are an ideal medium-sized solution for liquid level sensing applications. LS-800-5 single-point level switches feature 3/4" stainless steel/brass NPT ports, mounts on the outside of the tank, and applications for small or large tanks.

  • Magnetrol International

    Magnetrol International offers Echotel 961 single point ultrasonic level switches for the following industries: nuclear power, pulp/paper mills, petroleum refining, oil/gas field processing, and chemical industry. These switches require no calibration, they have loop current or relay output options, push-buttons for manual testing of outputs, and LED indications for errors and alarm status updates. Switches are PED, A3, FM, CSA, CE, and ATEX approved.

  • SOR, Inc.

    SOR, Inc. offers single point ultrasonic level switches. These switches have pressure limits ranging from 0 to 2000 PSI, temperature limits ranging from -40 to 250°F, and relay/current shift 8/16 mA outputs. Sensors are low in cost, they require no calibration, they have no moving parts, and they are GOST, CSA, and FM certified.

  • Siemens

    Siemens offers single point float level switches for containment area, fuel oil tank, and oil/salt water tank applications. These switches feature explosion-proof junction boxes, glass reed switch contacts, NYTROPHYL floats with embedded magnets, and 1/2"-1.75" stems constructed from fiberglass or stainless steel materials. Switches have 70 mA power consumption ratings, 12-32 VDC power requirement ratings, 100 mA maximum contact ratings, and operating temperatures ranging from -40 to +85°C.

  • E & E Process Instruments

    E & E Process Instruments offers single point liquid level switches for low or high alarm vessel applications. These switches are field adjustable, highly resistant to vibration/shock, rated at 240 VAC/DC, and available with 1/8"-1/4" NPT connections. Switches have pressure ratings ranging from 100 to 500 PSI, temperature limits ranging from -40 to 300°F, and specific gravity ratings ranging from 0.7 to 0.72. They are constructed from nylon, propylene, Kynar, PVC, closed cell Buna, and 316 stainless steel materials.