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New large scale EPDM O type sealing rings

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New large scale EPDM O type sealing rings

June 10, 2026

Product Highlights & Technical Advantages

  1. High-performance EPDM Material for Demanding Working ConditionsThis O-ring is made of EPDM (Ethylene Propylene Diene Monomer) rubber, inheriting the material’s excellent weather resistance, ozone resistance, and aging resistance. It can operate stably over a wide temperature range of -40°C to 150°C, while offering outstanding resistance to water, steam, and acid/alkali corrosion. It is suitable for various industrial scenarios such as water treatment equipment, chemical reactors, large pipelines, and pressure vessels, effectively resisting environmental aging and medium erosion over the long term, and significantly extending the service life of equipment seals.

  2. Precision Molding of Large-Size Parts, Marking an Upgrade in Process CapabilitiesThe newly developed O-ring has an outer diameter of nearly 500mm and a cross-section diameter of 27mm, classifying it as a large-specification sealing component. Large-size rubber parts are prone to issues such as uneven molding, shrinkage deformation, and concentricity deviations. Our technical team has overcome these challenges by optimizing the vulcanization process, improving mold structures, and strictly controlling raw material ratios, ensuring the product meets industry standards in dimensional accuracy, roundness, and surface quality. This achievement also enables stable mass production of large-scale sealing parts.

  3. High-Reliability Sealing Design for Heavy-Duty ApplicationsThe 27mm cross-section diameter provides the O-ring with enhanced elastic recovery and sealing compensation capabilities. It can effectively offset the effects of equipment installation errors, thermal expansion/contraction, and working condition fluctuations, maintaining stable sealing performance even under complex conditions such as high pressure and dynamic loads. This greatly reduces the risk of leakage, delivering reliable protection for the safe operation of large industrial equipment.



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