Official PDF Translation•Chinese Journal of Mechanical Engineering

Design and Performance Study of an Automatic Compensation Wear High-Pressure Rotary Sealing Device

Authors: Hongxiang Jiang; Huihe Zhao; Xiaodi Zhang; Hongsheng Li; Chao Xia

DOI: 10.1186/s10033-025-01249-zStatus: Verified Translated Edition

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Key Findings in This Report

• An automatic wear-compensating high-pressure rotary sealing device was designed, ensuring tight sealing even after guide sleeve wear. • Leakage rate decreases with increasing water pressure, becoming nearly zero above 30 MPa. • Temperature rise is more sensitive to rotational speed than pressure, while frictional torque depends on pressure but not speed. • Material ranking for wear resistance and reliability: PVDF > PEEK > PE > PA, with PVDF optimal for sealing guide sleeves.