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How can the LY-LDE-C electromagnetic flowmeter solve the challenge of measuring highly corrosive liquids? Analysis of the advantages of a PTFE rubber lining
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Introduction

In the field of highly corrosive liquid flow measurement, the LY-LDE-C electromagnetic flowmeter stands out with its innovative fluororubber lining technology. As a professional flow control device, its unique lining material can effectively resist acid and alkali corrosion, ensuring long-term stable operation. This article provides an in-depth analysis of the advantages of this technology and offers key selection references for technical evaluators.


Challenges in Highly Corrosive Liquid Measurement

In industries such as chemical processing, pharmaceuticals, and electroplating, flow measurement of highly corrosive liquids has always been a technical challenge. When traditional flowmeters come into contact with strong acids, strong alkalis, or high-concentration salt solutions, the following problems are likely to occur:

  • Rapid corrosion of metal components, resulting in reduced measurement accuracy
  • Aging and failure of sealing materials, causing leakage risks
  • Significantly shortened sensor service life, sharply increasing maintenance costs

Taking concentrated sulfuric acid (98% concentration) as an example, ordinary 304 stainless steel can only maintain a service life of 3-6 months in a 40℃ environment, while the LY-LDE-C electromagnetic flowmeter can extend this to more than 5 years through its special design.


Core Advantages of Fluororubber Lining

1. Excellent Chemical Stability

Fluororubber (FKM) has a unique molecular structure, and its carbon-fluorine bond energy reaches as high as 485kJ/mol, far exceeding that of ordinary rubber materials. Laboratory data show:

Media TypeConcentrationTemperature resistanceService Life
Hydrochloric Acid37%80℃≥8 years
Barium hydroxide50%100℃≥7 years

2. Reliable Assurance of Accurate Flow Measurement

The matching design of the lining material and electrodes ensures:

  • Measurement accuracy reaches ±0.5%R (compliant with GB/T 18659-2018 standard)
  • The Reynolds number range covers 1-10^7, adapting to different flow velocity conditions
  • Complete insulation characteristics prevent electrochemical corrosion

Detailed Explanation of LY-LDE-C Series Technical Parameters

As professional liquid flow sensors, this series of products offers multiple model options:

  1. UHLDB Model: Designed specifically for ultra-high-viscosity liquids, with a minimum conductivity requirement of only 5μS/cm
  2. LY-LDE-WS Model: Sanitary-grade version, certified by 3-A, suitable for the food and pharmaceutical industries
  3. HPLDE Model: High-pressure version, capable of withstanding a maximum working pressure of 6.4MPa

All models adopt an insertion-type installation design, allowing maintenance without interrupting the process flow.


Industry Application Cases

After a large chemical plant adopted the XFC electromagnetic flowmeter on its chlor-alkali production line:

  • Measurement error was reduced from ±2.1% to ±0.3%
  • Annual maintenance costs were reduced by 680,000 yuan
  • Equipment replacement cycle was extended to 3 times the original

Similar successful applications have also been achieved in fields such as electroplating wastewater treatment (using the RXLDB Model) and lithium battery electrolyte production (using the HKE Model).


Selection Recommendations and Precautions

Technical evaluators should focus on:

  • Medium characteristics (pH value, viscosity, solids content)
  • Process temperature/pressure range
  • Explosion-proof rating requirements (such as Ex d IIC T6)
  • Output signal type (4-20mA/pulse/RS485)

It is recommended to use the online configuration tool of the JCLDBE electromagnetic flowmeter for precise model selection.


Summary and Action Guide

Through its fluororubber lining technology, the LY-LDE-C series electromagnetic flowmeter provides a reliable flow measurement solution for highly corrosive working conditions. Its advantages are reflected in:

  • Breakthrough corrosion resistance performance
  • Long-term stable measurement accuracy
  • Significantly reduced total cost of ownership

As a flow control equipment expert with 20 years of industry experience, Xi'an Shenghongchuang Instrumentation Co., Ltd. can provide:

  • Free working condition analysis services
  • Customized solution design
  • Full life-cycle technical support

Contact our technical team now to obtain the detailed technical manual and quotation plan for the RT-LDE electromagnetic flowmeter.

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