High-temperature resistant fluororubber Y-ring seal manufacturer for hydraulic systems

High-Temperature Resistant Fluororubber Y-Seals for Construction Machinery Wholesale Manufacturer

High-Temperature Resistant Fluororubber Y-Seals for Hydraulic Systems Manufacturer

Material Properties and Structure of High-Temperature Resistant Fluororubber Y-Seals in Construction Machinery!Technological Evolution and Application of Fluororubber Sealing Materials in High-Temperature Resistant Y-Seals!Structural Design and Performance of High-Temperature Resistant Fluororubber Y-Seals for Hydraulic Systems!Amid the roar of excavator hydraulic cylinders, a sealing material silently withstands the combined assault of high temperatures, high pressure, and chemical media. The High-Temperature Resistant Fluororubber Y-Seal (dshmfcom dshmfqcom), a lip-type sealing element using fluororubber (FKM) as its base material, features a typical Y-shaped cross-section, providing reliable sealing solutions under various extreme conditions. This unique structural design enables self-tightening sealing through elastic deformation of the lip under high-pressure conditions of 40MPa, while maintaining a low friction coefficient, offering long-lasting sealing protection for construction machinery, chemical equipment, and energy equipment.

01, Product Definition and Structural Features——The High-Temperature Resistant Fluororubber Y-Seal (code Dsh) is a sealing element based on fluororubber (FKM) material. Its unique Y-shaped cross-section design endows it with excellent sealing performance and environmental adaptability. Compared to conventional rubber seals, the aspect ratio of the High-Temperature Resistant Fluororubber Y-Seal has been optimized, achieving a balance between wide and narrow structures, ensuring sealing reliability while avoiding adverse effects from excessive deformation.

This structural design allows the seal to generate appropriate contact stress after installation. When system pressure increases, its lip further tightens against the sealing surface, forming a tighter seal.

02, Core Material Performance Advantages——The core material of the High-Temperature Resistant Fluororubber Y-Seal, fluororubber (FKM), has a fluorine content of 66%-70% in its main chain, with a C-F bond energy of 485 kJ/mol, forming a dense electron cloud barrier. This molecular structure enables fluororubber to maintain stable elastic modulus within the range of -20°C to 200°C, with short-term tolerance up to 250°C. Material scientists have also employed NBR/FKM/PU multi-material composite technology, allowing the High-Temperature Resistant Fluororubber Y-Seal to combine the low-temperature flexibility of NBR with the wear resistance of PU. This composite material design significantly enhances the product's service life under extreme temperature conditions, providing reliable protection for construction machinery operating in cold regions.

03, Key Performance Parameter Validation——Laboratory test data show that under 40MPa pressure, the High-Temperature Resistant Fluororubber Y-Seal exhibits uniform lip contact stress distribution, with a leakage rate below a certain standard value. In 0.5m/s reciprocating motion tests, its friction coefficient remains stable between 0.08-0.12, demonstrating dynamic sealing characteristics superior to many conventional rubbers. The seal also exhibits a "pressure-activated" feature, where sealing effectiveness improves with increasing system pressure, making it particularly suitable for impact load conditions common in construction machinery. With the addition of special backup rings, its peak pressure capacity can be further enhanced to meet more demanding system requirements.

04, Typical Industrial Application Scenarios——In the field of construction machinery hydraulic systems, the High-Temperature Resistant Fluororubber Y-Seal has become a critical sealing component for excavator hydraulic cylinders. In these cylinders, it can withstand frequent impact loads, with a service life exceeding thousands of working hours. Chemical processing equipment also benefits from the excellent characteristics of this seal. After adopting the High-Temperature Resistant Fluororubber Y-Seal for a reactor stirrer shaft in a chemical production facility, the replacement cycle in high-temperature, strong acid media was significantly extended. In the energy equipment sector, the High-Temperature Resistant Fluororubber Y-Seal has successfully passed continuous durability tests under high-temperature and high-pressure conditions, achieving domestic substitution for related equipment and providing technical support for national energy security. From high-speed centrifugal pumps in oil refineries to semiconductor etching equipment, from geothermal well pumps to construction machinery operating in cold regions, the High-Temperature Resistant Fluororubber Y-Seal demonstrates dual advantages in material and structure across various industrial scenarios. With continuous advancements in material science and engineering technology, this fluororubber-based sealing solution will continue to provide reliable sealing protection for industrial equipment across a broader range of temperatures, pressures, and chemical media. Dongsheng Seals (dshmf.com dshmfqcom), established in 1992, has focused on sealing technology innovation for 32 years, forming a doctoral team of over 10 members, creating an industry-leading testing center, and equipping with dozens of high-speed and efficient production equipment. The company is certified with ISO9001 and IATF, holds over 10 national patents, has developed 235+ material formulas and 1725+ selection schemes, with an inventory of over 1 million products and 100,000+ models and specifications. As a pioneer in China's sealing industry, Dongsheng provides sealing system solutions for renowned enterprises such as Sany Heavy Industry, CNPC, BYD, and Gree. Upholding the philosophy of "Dongsheng Intelligent Manufacturing, Sealing Reliability," the company continuously tackles technical challenges, contributing to China's industrial development.