Moken (Xiamen) Industrial Co., Ltd.
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China Factory Suppliers of Rubber X-type Seal Ring with Four-Lip Bidirectional Sealing for High Performance Applications

Product Features
- Low Friction Resistance: Our sealing solution is designed with a lubricating cavity between the sealing lips, resulting in reduced friction and starting resistance compared to traditional O-type seal rings. With an excellent low friction coefficient and minimal wear, this product efficiently accommodates both axial and radial displacements, as well as complex movements.
- Exceptional Sealing Performance: Featuring a unique cross-sectional design with a strategically placed flash in the concave area, this seal guarantees optimal sealing effectiveness. Its non-circular shape eliminates any rolling during reciprocating motions, while the innovative four-lip design ensures bidirectional sealing for superior performance.
- Enhanced Anti-twisting Capability: This product is engineered to resist twisting effectively. During dynamic sealing applications, our seals maintain their integrity without turning or twisting, providing robust anti-twisting performance even in reciprocating motions.
- Broad Adaptability: Our seals are suitable for a wide range of operating temperatures, from -40°C to 120°C. For specialized rubber materials, the operating range can extend from -80°C to 300°C, making it an ideal choice for various pressure and speed conditions. As a reputable supplier and factory based in China, we are committed to providing high-quality sealing solutions tailored to meet your specific needs.

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    Product Details

    Functions

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    Sealing Function

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    In both static and dynamic sealing, it prevents the leakage of working media (such as hydraulic oil, water, gas, etc.), and at the same time blocks the intrusion of external dust, impurities and other foreign matters. It buffers vibrations and impacts, compensates for minor defects on the sealing surface, and ensures the sealing and stability of the system.
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    Buffering and Shock Absorbing

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    Between some mechanical moving parts, it can play a certain buffering and shock absorbing role, reducing the impact and vibration between parts, protecting the equipment from damage, and extending the service life of the equipment.
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    Auxiliary Positioning

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    During the installation process, it can help with the preliminary positioning of parts, ensure the accuracy of part installation positions, and is beneficial to improving the assembly accuracy of the equipment.

    Application Scenarios

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    Scenario 1: Hydraulic and Pneumatic Systems

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    It is used to seal reciprocating pistons, piston rods, and plungers, and can also be used for the sealing of shafts or mandrels in oscillating, rotating or screw motion, such as hydraulic cylinders, pneumatic cylinders, hydraulic pumps, and pneumatic valves.
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    Scenario 2

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    The rubber X-type seal ring is applied to key components of automobiles, such as the engine, gearbox, steering system, and braking system. In the engine, it is used for parts like the crankshaft oil seal to prevent engine oil leakage, maintain a good lubricating environment, and ensure the normal operation of the engine. In the gearbox, it is installed at positions such as the shift shaft of the transmission to seal the gear oil, ensuring smooth gear shifting and stable power transmission.
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    In the braking system, the X-type seal ring at the ABS solenoid valve can maintain good elasticity and sealing performance under temperature changes ranging from -40°C to 150°C, preventing brake fluid leakage, ensuring precise control of the braking pressure during braking, avoiding wheel lockup, and enhancing braking stability. The X-type seal ring at the connection between the brake master cylinder and the pipeline can withstand the high pressure generated during braking, prevent brake fluid leakage, ensure the stable transmission of brake fluid pressure, make the braking response sensitive, and shorten the braking distance. The X-type seal ring at the sealing part of the vacuum booster effectively maintains the vacuum environment, assisting the driver in braking with ease and reducing driving fatigue.
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    In the power steering system, the X-type seal ring is relied on at parts such as the shaft seal and the oil inlet and outlet of the power steering pump to withstand the power steering oil and temperature changes, prevent the leakage of power steering oil, ensure that the power steering pump stably outputs high-pressure oil, and provide sufficient power assistance for steering. The X-type seal ring is applied at positions such as the piston seal and pipeline connection of the steering gear to prevent the leakage of power steering oil, ensure the stable internal pressure of the steering gear, make the steering precise and smooth, and enhance the driving experience.
    The rubber X-type seal ring has good tolerance to media such as oil, water, and air. Our company's EPDM self-lubricating X-shaped seal ring has passed the following tests: resistance to heat aging at 150°C for 70 hours, resistance to DOT at 150°C for 70 hours, and resistance to VP oil at 70°C for 70 hours.
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    Scenario 3: Industrial Equipment

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    In various industrial equipment, such as the sealing parts of industrial valves, pharmaceutical equipment, food processing equipment, agricultural machinery, etc., such as the pipeline connection sealing of food and beverage filling equipment and the sealing of reaction kettles in pharmaceutical equipment.
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    Scenario 4: Aerospace Field

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    It is used for the sealing of the hydraulic system, fuel system, pneumatic system, etc. of aircraft, ensuring the safe and reliable operation of aerospace equipment in complex environments such as high altitude, high pressure, and high temperature.

    Frequently Asked Questions

    What are the primary functions of these seal rings?

    They provide reliable static and dynamic sealing to prevent leakage of working media (hydraulic oil, water, gas) and block external contaminants. Additionally, they buffer vibrations, absorb shocks, and assist in the preliminary positioning of mechanical parts during assembly.

    How do X-type seal rings perform in automotive braking systems?

    In braking systems, such as ABS solenoid valves, X-type seal rings maintain excellent elasticity and sealing performance across extreme temperature ranges from -40°C to 150°C. They prevent fluid leakage, ensure precise control of braking pressure, and shorten overall braking distances.

    What performance tests have your EPDM self-lubricating X-shaped seal rings passed?

    Our EPDM self-lubricating X-shaped seal rings have successfully passed heat aging tests at 150°C for 70 hours, DOT resistance tests at 150°C for 70 hours, and VP oil resistance tests at 70°C for 70 hours, validating their durability under harsh conditions.

    Are X-type seal rings suitable for hydraulic and pneumatic cylinders?

    Yes, they are extensively used to seal reciprocating pistons, piston rods, and plungers. They are also ideal for rotary, oscillating, or screw motion shafts in hydraulic cylinders, pneumatic cylinders, hydraulic pumps, and pneumatic valves.

    Can these seals be used in aerospace and food processing environments?

    Absolutely. In the aerospace field, they seal hydraulic, fuel, and pneumatic systems of aircraft under high pressure and altitude. In industrial settings, they are used in pharmaceutical reaction kettles and food/beverage filling equipment pipelines due to their high tolerance and sealing integrity.

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