How Do Magnetic Flap Level Meters Work

Magnetic level gauges are an accurate and reliable way to measure the fluid level in any vessel. Using magnetism, the indicator on the gauge is linked to a float inside the vessel, allowing it to move up or down in response to changes in the fluid level. This ensures that the fluid level in the vessel is always accurately indicated on the gauge.

Operating at the precept of conductivity, magnetic degree gauges are composed of 3 most important components: the chamber, the float, and the indicator. The chamber, typically constructed of non-magnetic material and mounted to the vessel’s side, serves as the main component and ensures that the level of liquid in the chamber matches that in the vessel.   Compared to traditional sight glasses, magnetic level gauges are more capable of withstanding and measuring extreme applications, such as highly corrosive or hazardous substances.

Magnetic Level Gauge

The magnetic level gauge’s ancillary chamber uses a highly sensitive float containing a set of permanent magnets to get an accurate reading. This float is usually constructed from corrosion-resistant 316 stainless steel or titanium, but other materials can be used where needed. When the liquid in the primary chamber fluctuates, the magnetic level gauge responds proportionately. The flow tasks a magnetic area via the gauge’s chamber to an outside indicator gadget that shows the inner fluid levels. The outside indicator regularly includes rotating flags which might be brightly colored to make it clean to perceive while the flag is flipped. Each flag is securely mounted using rare earth magnetic assemblies to ensure a reliable latching action and reduce false readings due to vibration.

Magnetic stage gauges offer peace of thoughts understanding that your readings are correct and reliable. Combining tested buoyancy standards with the dependability of magnetism, those gauges offer highly accurate fluid measurement capacities for various applications, such as boilers, tanks, and process vessels.   Moreover, you can customize a magnetic level gauge to fit any process connection arrangement to meet your needs. With their superior accuracy and reliability, magnetic level gauges are the ideal choice for monitoring your critical systems.

Is a Magnetic Level Gauge designed in a particular way?

Magnetic level gauges are designed to be rugged and reliable, constructed from stainless steel to resist corrosion in the toughest of applications. These gauges have been extensively tested and proven to withstand system shock, corrosive environments, hazardous materials, vibrations, high temperatures and pressures, and excessive moisture – conditions that could cause other indication styles to fail.   The durability of magnetic level gauges ensures that they will remain reliable and accurate even in the harshest conditions, providing you with precise readings and peace of mind.

The magnetic operation of these devices ensures that your measurements remain unaffected even during power outages in your facility, which makes them an invaluable tool for monitoring fluid levels at the most critical times.   With their magnetic operation, you can trust that your measurements will remain accurate even during unexpected power losses.

By using a magnetized shuttle that moves in sync with the magnets of your float, you can free yourself from the restrictions of mechanical guide rails. This allows for limited lateral movement of your float within the column of a magnetic level gauge, making it suitable for fluids with a wide range of densities. With this technology, you can ensure reliable, accurate readings for any liquid.

For most applications, magnetic level gauges are reliable and provide precise level information that can be monitored and recorded continuously with little or no maintenance required.   You don’t need to recalibrate your equipment constantly – these devices provide repeatable, accurate readings that ensure fluid levels are maintained without requiring frequent adjustments.

The Key to Finding the Right Magnetic Level Gauge

Ensuring you have the correct magnetic level gauge for your process’s operating conditions is essential.

Factors such as vessel type, temperature, fluid density, and working pressure should all be considered when selecting the correct gauge.

For more aggressive fluids, consider utilizing a gauge with a chamber and float constructed of higher-grade materials such as Hastelloy or Alloy 20. Investing in the right magnetic level gauge will help ensure your process is safe and efficient.


The Magnetic Level Gauge offers a range of advantages for various applications.

  • Its immediate and accurate response to level changes gives clear and sharp legibility for easy monitoring.
  • It features a continuous indication of liquid level and can be used for local and remote display.
  • It’s also robust, shockproof, and completely sealed for safety, with no leakage into the atmosphere.
  • Ideal for dangerous or toxic fluids, liquid interface applications, and high temperature and pressure capability.
  • It is also simple to engineer and install, making it an economical alternative to conventional level gauges and other level measuring systems.


  • Refinery and chemical industries
  • Feed water heaters and boilers
  • Oil and gas industries
  • Offshore exploration and drilling
  • Pipeline compressor applications
  • Pulp and paper
  • Food and beverage
  • Gas plants
  • Pharmaceutical
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