What is the Difference Between Magnetic Flap Level Gauge and Steel Strip Level Gauge to Measure Liquid Level

What is the Difference Between Magnetic Flap Level Gauge and Steel Strip Level Gauge to Measure Liquid Level

In the industrial field, liquid level measurement is a crucial link to ensure the smooth and safe operation of the production process.

1. Comparative Analysis of Magnetic Flap Level Gauge and Steel Strip Level Gauge

1.1. Measurement accuracy

  • Magnetic flap level gauge. Due to its measurement method based on the float position, the float and magnetic elements affect the accuracy. It is usually of moderate accuracy and is suitable for occasions with medium accuracy requirements.
  • Steel strip level gauge. Based on the principle of length measurement, it has high accuracy and is suitable for occasions where high accuracy of liquid level measurement is required.

1.2. Applicable media

  • Magnetic flap level gauge. Suitable for various liquid media, including corrosive liquids, high-temperature liquids, and high-pressure environments.
  • Steel strip level gauge. Mainly suitable for non-corrosive and relatively stable media but has poor applicability to highly corrosive media.

1.3. Installation and maintenance

  • Magnetic flap level gauge. Simple installation, almost no moving parts, low maintenance cost, suitable for environments with complex field conditions.
  • Steel strip level gauge. Complex installation, requires precise calibration and regular maintenance, suitable for occasions with high management level and good maintenance conditions.

1.4. Display mode

  • Magnetic flap level gauge. The liquid level is displayed visually through color changes, and the reading is easy, but it cannot be transmitted remotely.
  • Steel strip level gauge. It can display the liquid level through a mechanical pointer or digital display and can output signals for remote monitoring.

1.5. Cost

  • Magnetic flap level gauge. Simple structure, relatively low manufacturing and maintenance costs, suitable for occasions with limited budget.
  • Steel strip level gauge. Complex structure, high manufacturing and maintenance costs, suitable for occasions with sufficient budget and high measurement accuracy requirements.

Magnetic buoy float level gauge

2. Analysis of Typical Application Scenarios

2.1. Petrochemical industry

In the petrochemical industry, tank level measurement is crucial. For large tanks, steel strip level gauges can provide reliable data with high accuracy and remote monitoring capabilities. They are suitable for the level management of critical tanks. Magnetic flap level gauges are ideal for level measurement of small and medium-sized tanks, especially those requiring corrosion and high-temperature resistance.

Case analysis:

A specific oil reserve uses a steel strip level gauge to monitor the liquid level of the primary storage tanks to ensure their safe management. At the same time, in some auxiliary storage tanks, magnetic flap level gauges are used for level measurement, which reduces costs and improves the overall efficiency of liquid level monitoring.

2.2. Food and beverage industry

The food and beverage industry has high requirements for sanitary conditions, and liquid level measurement must avoid medium contamination. The non-contact magnetic flap level gauge measurement method is particularly suitable for this environment, as it can ensure the medium’s purity and the measurement’s accuracy. However, the steel strip level gauge is rarely used in such environments due to its complex structure and potential contamination risk.

Case analysis:

A large beverage factory widely uses magnetic flap level gauges in its raw material storage tanks and fermentation tanks to ensure the sanitation and safety of the production process and the accuracy of liquid level monitoring. At the same time, regular maintenance and calibration are used to maintain the long-term stable operation of the level gauges.

2.3. Water treatment industry

Liquid level measurement in the water treatment industry must adapt to various media, including sewage, clean water, and chemical reagents. Magnetic flap level gauges are suitable for sewage treatment and liquid level measurement of chemical tanks due to their corrosion and high-temperature resistance. Steel strip level gauges are ideal for clean water tanks and occasions that require high-precision measurement.

Case analysis:

To ensure accurate and stable level measurement, a sewage treatment plant installed magnetic flap level gauges in chemical tanks. At the same time, steel strip level gauges were used in clean water tanks to achieve high-precision level monitoring and remote control, improving the automation level of the water treatment process.

2.4. Pharmaceutical industry

The pharmaceutical industry has exceptionally high requirements for the accuracy and hygiene of liquid level measurement. The non-contact measurement method of the magnetic flap level gauge avoids medium contamination and is suitable for various liquid tanks. With its high accuracy and remote monitoring capabilities, the steel strip level gauge is ideal for production links requiring strict fluid level control.

Case analysis:

A pharmaceutical company widely uses magnetic flap level gauges in its production line to ensure accurate level monitoring of the drug storage tank and the purity of the medium. At the same time, in crucial production links, steel strip level gauges are used for high-precision level measurement and remote monitoring to ensure the efficiency and safety of the production process.

Tape float level gauge

3. Summary and Suggestions

Through a detailed analysis of the principles, characteristics, application scenarios, and typical cases of magnetic flap level gauges and steel strip level gauges, we can draw the following conclusions:

3.1. Advantages of magnetic flap level gauge

The magnetic flap level gauge has a simple structure, is easy to install, and has low maintenance costs. It is suitable for level measurement of various media, especially in situations where corrosion resistance, high-temperature resistance, and high sanitary conditions are required. Its intuitive color display makes on-site readings convenient. Besides,  it’s suitable for situations where on-site conditions are complex and economical and where a practical level measurement is needed.

3.2. Advantages of steel strip level gauge

The steel strip level gauge has the advantages of high precision, applicability to large tanks, and remote monitoring. It is suitable for occasions with high requirements for liquid-level measurement accuracy, remote monitoring, and automatic control. Its complex structure and installation method make it ideal for occasions with high management levels and good maintenance conditions.

3.3. Selecting recommendations

Consider the specific application scenario and requirements when choosing a suitable level meter. Magnetic flap level meters are more appropriate for occasions requiring corrosion resistance, high-temperature resistance, and high sanitary conditions. Steel strip level meters are more suitable for occasions requiring high-precision measurement, remote monitoring, and automatic control.

In short, magnetic flap level gauges and steel strip level gauges each have their advantages. When choosing, users should make a comprehensive assessment based on specific working conditions and needs, and select the most suitable level measurement solution to ensure an efficient, safe, and stable production process.

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