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Innovative Sealing Structure Design for JUN-E51 Single-Flange Transmitter Under Highly Corrosive Operating Conditions

Author

Listed:
  • Ying Zhang

    (Yuuki Measurement Technology (Shanghai) Co., Ltd., Shanghai 201108, China)

Abstract

Addressing the bottlenecks of premature aging, high leakage rates, and short service life in conventional sealing structures of single-flange transmitters under highly corrosive conditions, this study investigates the JUN-E51 single-flange remote pressure transmitter from Yuzuki Measurement Technology (Shanghai) Co., Ltd., focusing on innovative sealing structure design and performance optimization. Leveraging data from 517 industrial project implementations, an integrated sealing solution incorporating dual-sealing architecture, pressure relief channels, and gradient material matching is proposed. Finite element simulation was employed to optimize the contact pressure distribution across sealing surfaces. A synergistic protection system consisting of PTFE-reinforced graphite gaskets and modified fluororubber O-rings was selected. Accelerated testing in a high-temperature, high-pressure corrosive environment for 8,000 hours demonstrated that the innovative structure achieved a leakage rate below 5×10⁻⁸ Pa·m³/s, representing a 92% reduction in corrosive medium permeability compared to conventional designs. Deployment of 16 units in Guizhou Chuanheng Chemical’s 200,000-ton/year phosphoric acid project extended equipment maintenance intervals from 6 months to 24 months, with failure rates reduced to zero. The related technology has been granted patent authorization, providing a comprehensive paradigm for improving sealing reliability of industrial measurement equipment under highly corrosive conditions.

Suggested Citation

  • Ying Zhang, 2026. "Innovative Sealing Structure Design for JUN-E51 Single-Flange Transmitter Under Highly Corrosive Operating Conditions," Innovation in Science and Technology, Paradigm Academic Press, vol. 5(1), pages 46-52, March.
    • Handle: RePEc:bdz:inscte:v:5:y:2026:i:1:p:46-52
    DOI: 10.63593/IST.2788-7030.2026.03.006
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