{"id":3649,"date":"2026-08-20T13:37:44","date_gmt":"2026-08-20T05:37:44","guid":{"rendered":"https:\/\/www.elecall.com\/?p=3649"},"modified":"2026-08-20T15:07:08","modified_gmt":"2026-08-20T07:07:08","slug":"eflt-2-liquid-level-control-solution","status":"publish","type":"post","link":"https:\/\/www.elecall.com\/ja\/technical-topics\/eflt-2-liquid-level-control-solution\/","title":{"rendered":"ELECALL EFLT-2 Digital Float Level Transmitter Delivers Precise Level Management for a 15-Ton Liquid Storage Tank"},"content":{"rendered":"

Customized Level Control Solution Tailored for Large Storage Tank Applications<\/h2>\n\n\n\n

In industrial production processes, liquid level management for large-capacity storage tanks requires not only accurate level monitoring but also long-term stability under complex operating conditions, corrosive environments, and continuous operation.<\/p>\n\n\n\n

A customer required a reliable liquid level monitoring and control solution for a 15-ton liquid storage tank<\/strong>. The system needed to achieve four independent level control points<\/strong>, including real-time level display, alarm functions, and automatic control.<\/p>\n\n\n\n

After a detailed evaluation of the customer’s tank structure, installation requirements, liquid characteristics, and operating environment, the ELECALL technical team selected the EFLT-2 RS485 Digital Float Level Transmitter with 4\u201320mA Output<\/a><\/strong> as the optimal solution.<\/p>\n\n\n

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Unlike conventional level switches that only provide point-level detection, the EFLT-2 enables continuous liquid level measurement and transmits accurate level data through industrial standard signals, allowing seamless integration with PLCs and control systems for intelligent level management.<\/p>\n\n\n\n

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Precisely Matched with the Customer\u2019s 15-Ton Storage Tank Structure<\/h2>\n\n\n\n

Based on the customer’s actual tank parameters:<\/p>\n\n\n\n

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  • Total tank height: 3.5 m<\/strong><\/li>\n\n\n\n
  • Effective vertical height: 2.95 m<\/strong><\/li>\n\n\n\n
  • Tank diameter: 2.53 m<\/strong><\/li>\n\n\n\n
  • Tank opening diameter: 65 cm<\/strong><\/li>\n<\/ul>\n\n\n
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    ELECALL customized the EFLT-2 according to the customer’s specific installation conditions.<\/p>\n\n\n\n

    Since the tank height was relatively large, a standard-length level transmitter could not fully cover the required measuring range. Therefore, ELECALL provided a customized design including:<\/p>\n\n\n\n

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    • Customized probe rod length: 2.65 m<\/strong><\/li>\n\n\n\n
    • Probe rod diameter: \u03a614 mm<\/strong><\/li>\n\n\n\n
    • Installation method: Flange-mounted insertion installation<\/strong><\/li>\n\n\n\n
    • Connection flange: DN50 flange<\/strong><\/li>\n<\/ul>\n\n\n\n

      The customized EFLT-2 effectively covers the entire liquid level range inside the tank while ensuring secure installation through flange mounting, making future maintenance more convenient.<\/p>\n\n\n\n

      This customized approach ensures that the level transmitter perfectly matches the customer’s tank structure and avoids common issues such as insufficient measuring range, installation limitations, or unstable operation caused by improper product selection.<\/p>\n\n\n\n

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      316 Stainless Steel Construction Ensures Long-Term Reliability in Harsh Environments<\/h2>\n\n\n\n

      Considering that the equipment would operate continuously in an industrial environment with potential exposure to corrosive liquids, humidity, and demanding operating conditions, ELECALL enhanced the liquid-contact components of this project by adopting a SUS316 stainless steel structure combined with PTFE (polytetrafluoroethylene) anti-corrosion coating<\/strong>.<\/p>\n\n\n\n

      Compared with conventional materials, 316 stainless steel provides excellent durability and corrosion resistance<\/strong>, including:<\/p>\n\n\n\n

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      • Excellent resistance to chemical corrosion<\/li>\n\n\n\n
      • Strong oxidation resistance<\/li>\n\n\n\n
      • Good high-temperature performance<\/li>\n\n\n\n
      • Long-term stability in continuous liquid contact environments<\/li>\n<\/ul>\n\n\n\n

        In addition, the PTFE protective coating creates an additional corrosion-resistant barrier<\/strong> on the surface of the liquid-contact components, further improving resistance against acids, alkalis, chemicals, and other aggressive media.<\/p>\n\n\n\n

        The PTFE coating provides additional advantages:<\/p>\n\n\n\n

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        • Superior chemical resistance for harsh liquid environments<\/li>\n\n\n\n
        • Excellent non-stick properties, reducing liquid residue and impurity adhesion<\/li>\n\n\n\n
        • Improved wear resistance for long-term operation<\/li>\n\n\n\n
        • Enhanced protection of metal components against corrosion and degradation<\/li>\n<\/ul>\n\n\n\n

          Even under harsh industrial conditions involving corrosive media, high humidity, or continuous operation, the SUS316 stainless steel structure combined with PTFE anti-corrosion protection<\/strong> maintains stable performance, effectively reducing corrosion-related failures and extending the service life of the level transmitter.<\/p>\n\n\n\n

          For large storage tank applications, the reliability of liquid-contact materials directly determines equipment lifespan, maintenance requirements, and overall operating costs. By adopting a 316 stainless steel + PTFE composite protection design<\/strong>, ELECALL provides customers with a safer, more durable, and long-lasting level measurement solution, ensuring reliable operation even in challenging industrial environments.<\/p>\n\n\n\n

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          From Level Measurement to Automatic Control \u2014 Meeting Comprehensive Application Requirements<\/h2>\n\n\n\n

          The customer required more than simple level alarm detection. The project needed to achieve:<\/p>\n\n\n\n