Level switches
Level switches
Level switches detect and indicate changes in liquid levels. They are suitable for monitoring or controlling liquid levels in tanks, pipelines, or even natural waters.
Level switches can be mechanical or electronic and operate on different principles, such as float, thermal dispersion, electrical, or optical sensors. They play an important role in industrial and technical environments.
Wika and Magnetrol level switches are designed for a wide range of applications, available in mechanical, thermal dispersion, optical, and ultrasonic versions.
Choose from our level switches!
Magnetrol Tuffy T3 – Side-mounted, compact and cost-effective float level switch
Features:
- Horizontally mounted, compact and cost-effective
- Threaded or flanged process connection
- Max. operating temperature: -55 to +400 °C
- Max. operating pressure: 150 bar
- Minimum density: >0.4 kg/dm³
- Wetted parts material: 316/316L or Hastelloy C
- Can also function as an interface level switch
- Available in electrical or pneumatic version
Wika FLS – Top-mounted float level switch, with various electrical and process connection options
Features:
- Max. operating temperature: -196 to +350 °C
- Max. operating pressure: -1 to 40 bar
- Operating density: ρ ≥ 300 kg/m³
- Various electrical and process connection options available
- Also available in explosion-proof version
Wika HLS – Side-mounted float level switch, also available in explosion-proof version
Features:
- Side-mounted float level switch
- Max. operating temperature: -196 to +350 °C
- Max. operating pressure: -1 to 232 bar
- Operating density: ρ ≥ 600 kg/m³
- Various electrical and process connection options available
- Also available in explosion-proof version
Wika HLS-M – Side-mounted float level switch, compact design
Features:
- Side-mounted float level switch
- Max. operating temperature: -40 to +120 °C
- Max. operating pressure: 5 bar
- Operating density: ρ ≥ 800 kg/m³
- Various electrical and process connection options available
Magnetrol Thermatel TD1 - TD2 – Thermal dispersion level switch
Features:
- Simple field calibration (optional factory pre-calibration available)
- Detection of variable flow or “flow/no-flow” conditions
- Excellent sensitivity for low flow rates
- Continuous diagnostics detect sensor failures
- Max. operating temperature: +450 °C
- Max. operating pressure: 414 bar
- Integral or remote electronics, up to 150 m distance
Magnetrol Echotel 961-962 – Ultrasonic contact level switch for high or low level alarms
Features:
- No calibration required
- Loop-powered design with mA output
- Optional relay output, AC/DC powered
- Continuous self-diagnostics with selectable fault output
- Adjustable time delay up to 45 seconds
- Available with various metal or plastic sensors
- Suitable for use in SIL 1 and SIL 2 applications
Wika OLS-C20 – Optical level switch, compact high-pressure design
Features:
- Optical principle level switch
- Designed for heavy-duty applications
- Maximum operating temperature: -30 to +135 °C
- Maximum operating pressure: -1 to 50 bar
Wika OLS-C51 – Optical level switch, compact, explosion-proof design
Features:
- Optical principle level switch
- Maximum operating temperature: +135 °C
- Maximum operating pressure: 40 bar
- Intrinsically safe explosion protection
Wika OLS-S – High-pressure, high-temperature optical level switch
Features:
- Optical principle level switch
- Maximum operating temperature: –269 to +400 °C
- Maximum operating pressure: –1 to +500 bar
- Available in intrinsically safe design
Magnetrol Float Level Switch – Top-mounted, with narrow or wide hysteresis switching
Features:
- Narrow or wide hysteresis switching (A10/B10/C10, A15/B15/C15)
- 1, 2, or up to 3 switching points (A10/B10/C10)
- Maximum operating temperature: 260 °C
- Maximum operating pressure: 55 bar
- Specific gravity: >0.4 kg/dm³
- Adjustable suspension cable (standard: 3 m)
- Short-circuit protection
- Adjustable switching point and hysteresis in the field
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