
Float Level Switch – Reliable Liquid Level Detection Across Industries
Float level switches are widely used in industrial and commercial applications to detect liquid levels in tanks, vessels, and pipelines....
Level Switches
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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 Switches 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 Switches Parameter
| Parameter | Specification |
|---|---|
| Maximum Insertion Depth | 5 m (longer length customizable) |
| Control Scope (Max) | L – 120 mm |
| Control Scope (Min) | 50 mm (below 50 mm customizable) |
| Medium Density | ≥ 0.65 g/cm³ |
| Working Pressure | PN2.5 ~ PN160 |
| Working Temperature | –40 ~ +150 °C |
| Float Diameter | Ø28 ~ Ø120 mm (depending on pressure and density) |
| Installation Type | Flange: DN40 ~ DN150 |
| Flange Standard | 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
Reliable Instruments. Solutions That Fit Your Application.
Instrava is focused on delivering reliable industrial solutions through carefully curated products, application-driven optimization, and flexible customization. We select proven instruments from trusted manufacturers to ensure consistent quality, optimize solutions based on real working conditions to solve practical challenges, and provide tailored configurations to meet specific application needs.
By combining selection expertise with application understanding, Instrava helps customers reduce risk, improve efficiency, and achieve dependable results in complex industrial environments.

What type of level control is this switch suitable for?
This switch is designed for point level control, such as upper or lower limit detection, to control pumps, motors, and other equipment automatically.
Is the level switch affected by the physical or chemical properties of the medium?
No. The magnetic float level switch operates independently of conductivity, viscosity, or chemical properties, making it suitable for a wide range of industrial media.
Can the switch operate under high pressure and high temperature?
Yes. The switch supports working pressures up to PN160 and temperatures from –40 to +150 °C, depending on configuration and application requirements.
Is the switch suitable for hazardous or explosive environments?
The switch is available with an explosion-proof design rated Exd II CT6 Gb, making it suitable for use in hazardous industrial areas.
What installation options are available for this level switch?
The switch supports flange mounting, threaded connection, and other customized installation methods to match different tank designs and process conditions.
Does Instrava support customization or OEM integration for this product?
Instrava provides customization and OEM support, including insertion length, control point configuration, float selection, and system integration based on application requirements.
Built on Consistency, Not Claims
We specialize in industrial analysis and detection, with a clear understanding of real-world operating environments and requirements.
Every instrument is evaluated based on performance, stability, and application suitability—not just specifications or pricing.
We work with trusted manufacturers to ensure stable supply, consistent quality, and dependable delivery.
Our recommendations are grounded in application understanding, helping customers avoid common issues and achieve reliable results.
Instrava is built to reduce uncertainty—so every decision you make is clearer, safer, and more reliable.

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