Product Introduction

The Magnetic Level Gauge (also known as Magnetic Flap Level Indicator) is a reliable, direct-reading liquid level measuring device widely used for tanks and vessels. It operates on the principle of magnetic coupling between a float with internal magnets and external bi-colored flaps. As the float rises or falls with the liquid level, the flaps flip from white to red (or silver to blue), providing a clear, instantaneous visual indication without any power supply.

This level gauge is suitable for a variety of media including water, oil, diesel, fuel, chemicals, acids, and alkalis. It can withstand high-temperature conditions up to 350°C and high pressure up to 4.0MPa (40 bar). The main body is made of stainless steel SS304 or SS316, with PTFE lining available for strong corrosive liquids.

For remote monitoring, optional 4-20mA transmitters, HART protocol, reed switches, or limit alarms can be integrated. Explosion-proof versions (Ex db IIC T6, ATEX/IECEx) are available for hazardous areas. Installation is simple via flange or threaded connections, side-mounted or top-mounted. With high accuracy (±10mm), low maintenance, and customizable ranges, the magnetic level gauge is an ideal solution for chemical plants, oil depots, boiler drums, water treatment, and storage tank farms.

1. High Visibility – Bi-color magnetic flaps provide clear, instantaneous level reading without power supply.

2. Wide Application – Suitable for water, oil, corrosive liquids, high-temperature, and high-pressure conditions (up to 350°C / 4.0MPa).

3. Flexible Output Options – Available with 4-20mA transmitter, HART, reed switch, or limit alarms for remote monitoring.

4. Corrosion Resistant – SS304/SS316 or PTFE lined construction for aggressive media like acids and alkalis.

5. Explosion Proof – ATEX/IECEx certified optional, safe for hazardous areas (Ex db IIC T6).

6. Low Maintenance – No moving parts in the measuring chamber; robust magnetic coupling design.

7. Easy Installation – Standard flange or thread connection; side-mounted or top-mounted options.

8. Customizable – Ranges, materials, process connections, and electrical outputs tailored to your tank specifications.