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The Instrava magnetic float level switch is designed for reliable point level detection and automatic control of pumps, motors, and other electrical equipment in industrial applications. Using a magnetic float and reed switch structure, it provides stable on/off switching independent of the physical or chemical properties of the medium.
With a simple structure, long service life, and explosion-proof design, this level switch is suitable for harsh operating environments and critical level control tasks.
Key Benefits
Stable and reliable switching with long service life
Independent of medium conductivity, viscosity, or chemical properties
Direct control of pumps and contactors without additional circuits
Suitable for high-pressure, high-temperature, and hazardous areas
Standard, customized, and OEM configurations available
Liquid Level Switch Description
Why Choose This Magnetic Float Level Switch
In many industrial tanks and vessels, continuous level measurement is not required. What matters is reliable level control to protect equipment and ensure safe operation. The Instrava magnetic float level switch is designed to deliver dependable switching performance even in challenging process conditions.
For plant operators, engineers, and system integrators, it offers:
Minimal maintenance and simple installation
Reliable operation in contaminated or corrosive media
Clear upper and lower level control logic
Long-term stability with low failure rates


Magnetic Float Level Switch Typical Applications & Use Scenarios
This magnetic float level switch is widely used in industrial level control applications:
Water & Wastewater Systems
Automatic pump start/stop control in tanks and sumps.
Chemical & Petrochemical Processing
Level limit protection in pressure vessels and storage tanks.
Power & Energy Systems
Level control in auxiliary tanks and process containers.
Industrial Equipment & OEM Systems
Integration into packaged equipment and control skids.
Liquid Level Switch Parameter
| Parámetro | Especificación |
|---|---|
| Maximum Insertion Depth | 5 m (longer length customizable) |
| Control Scope (Max) | L – 120 mm |
| Control Scope (Min) | 50 mm (below 50 mm customizable) |
| Densidad media | ≥ 0.65 g/cm³ |
| Presión de trabajo | PN2.5 ~ PN160 |
| Temperatura de trabajo | –40 ~ +150 °C |
| Diámetro del flotador | Ø28 ~ Ø120 mm (depending on pressure and density) |
| Installation Type | Flange: DN40 ~ DN150 |
| Brida Estándar | HG/T20592–2009 |
| Thread Connection | G2” |
| Other Installation Methods | Available on request |
| Maximum Switching Frequency | ≤ 1 × 10⁵ operations |
| Switching Error | ±8 ±2 mm |
| Working Power Supply | 220 VAC / 380 VAC |
| Maximum Switch Voltage | ≤ 250 VAC |
| Maximum Switch Current | 5 A |
| Installation Angle Tolerance | ≤ ±25° |
| Wiring Box | M20 × 1.5 female thread |
| Protection Grade | IP65 |
| Explosion-Proof Rating | Exd II CT6 Gb |
Instrava OEM/ODM
At Instrava, our instruments are developed with a strong focus on real industrial applications. Each product is designed to operate as a reliable component within measurement, control, and automation systems, rather than as a standalone device.
Our engineering team supports customers during product selection by evaluating process conditions, operating environments, and system requirements, ensuring stable and long-term performance in actual use.
In addition to standard configurations, Instrava offers flexible customization options, including measurement range, materials, output signals, communication interfaces, and installation methods. All custom solutions are engineered to meet industrial standards and application-specific demands.
We also support OEM projects and system integration, providing consistent product design, technical documentation, and long-term supply to ensure smooth integration and reliable operation throughout the project lifecycle.

This switch is designed for point level control, such as upper or lower limit detection, to control pumps, motors, and other equipment automatically.
No. The magnetic float level switch operates independently of conductivity, viscosity, or chemical properties, making it suitable for a wide range of industrial media.
Yes. The switch supports working pressures up to PN160 and temperatures from –40 to +150 °C, depending on configuration and application requirements.
The switch is available with an explosion-proof design rated Exd II CT6 Gb, making it suitable for use in hazardous industrial areas.
The switch supports flange mounting, threaded connection, and other customized installation methods to match different tank designs and process conditions.
Instrava provides customization and OEM support, including insertion length, control point configuration, float selection, and system integration based on application requirements.
Al elegir Instrava, obtiene un socio con un profundo conocimiento de las aplicaciones industriales y la experiencia necesaria para hacer frente a los retos operativos actuales.
Nuestro papel va más allá de los productos: respaldamos su éxito con soluciones fiables y un compromiso a largo plazo.
La innovación en Instrava se guía por necesidades industriales reales. Perfeccionamos continuamente nuestras tecnologías para hacer frente a los cambiantes retos operativos, garantizando un rendimiento práctico y fiable en entornos exigentes.
Ofrecemos personalización a nivel de ingeniería para adaptarnos a las condiciones específicas del proceso. Desde el rango de medición y los materiales hasta las señales de salida y las opciones de instalación, nuestras soluciones están configuradas para adaptarse a aplicaciones reales.
La calidad y la fiabilidad son fundamentales en todos los productos Instrava. Fabricados bajo estrictos controles de calidad y sometidos a pruebas exhaustivas, nuestros instrumentos ofrecen un rendimiento preciso, estable y a largo plazo.
Instrava combina la experiencia mundial en ingeniería con una asistencia local receptiva, lo que garantiza que nuestros socios se beneficien de una tecnología alineada internacionalmente y de un servicio regional puntual.
Nuestra amplia cartera de instrumentos de medición y control nos permite dar respuesta a una amplia gama de necesidades industriales, proporcionando soluciones integradas a partir de una fuente única y fiable.
Trabajamos en estrecha colaboración con nuestros socios, desde el asesoramiento técnico hasta la asistencia posventa. Nos centramos en ofrecer soluciones que generen un valor duradero y contribuyan al éxito operativo a largo plazo.
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