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static seal
A static seal is an element used to seal between stationary or immovable parts. They are primarily used to prevent liquids or gases from leaking or seeping through joints or seams. Static seals are often made from different materials to suit various application needs and environmental conditions.
Common static seals include gaskets, O-rings, flange gaskets and joint seals. These seals come in different materials and structural designs to suit different sealing requirements.
Type:X Ring
Applications:Flange seal/Joint sealing/Tank and container sealing/Equipment and instrument sealing/Valve sealing(static sealing X Ring seals)
X Ring seals play an important sealing role in hydraulic systems, ensuring system reliability and stable performance.
The front fork damper oil seal dust cover is a rubber accessory used in motorcycles and bicycles to prevent dust and protect the oil seal. It features a double-layer structure, with the inner layer attached to the shock absorber and the outer layer providing dustproof and protective functions. The cover is certified under ISO 9001, ISO/TS 16949, RoHS Directive, and REACH laws. Its primary purpose is to keep particles out of the shock absorber’s interior, prolong its service life, preserve the oil seal, enhance performance, and extend maintenance intervals. Linde Polymer manufactures the oil seal dust cover according to industry standards, including ISO 9001, and conducts rigorous quality inspections and testing.
Applications: Pneumatic System
Name:X-Rings
X-ring rubber seal of the pneumatic system is a commonly used sealing element with the advantages of good sealing performance, wear resistance and durability, and wide adaptability.
Low voltage static X-rings are sealing components commonly used in sealing applications in low voltage environments. They are often used as static sealing elements, i.e. they provide a sealing effect without movement or pressure changes. It is made of a special elastic material and has an X-shaped cross-section. This design enables the X-ring to provide effective sealing performance to prevent liquid or gas leakage.
Name:Dynamic seal X-ring
Materials: FKM Shore 76.5
FKM Shore 76.5 is a dynamic sealing X-ring used for sealing between moving parts. Its structural shape differs from O-rings, which have a circular cross-section. The X-shaped cross-section design of the X-ring forms four sealing lips when compressed, providing better sealing performance. It also has superior torsion resistance, resisting twisting and rolling during installation and use. The structure of an X-ring is similar to two O-rings stacked together to form a crossed X-shaped structure. The material selection of dynamic seal X-ring rubber seal depends on the working medium, such as nitrile rubber or fluorine rubber.
PTFE Piston Static Seal Energized by Spring is a type of sealing solution that is used in hydraulic and pneumatic systems. It consists of a PTFE (polytetrafluoroethylene) piston ring that is energized by a spring. The PTFE material provides excellent resistance to high temperatures and corrosive chemicals, making it a popular choice for critical applications.
FKM X-rings, also known as fluoroelastomer X-rings, are a unique seal. It is made of fluoroelastomer (FKM), an advanced synthetic rubber material with excellent chemical stability, wear resistance and high temperature resistance. This sealing ring is designed and produced to provide a high-performance sealing solution in extreme environments.
Face seals are typically used in static sealing applications. Internal Face Spring Seals contain pressure inside the container and are often used as lid seals or pipe flange fittings. PTFE face seals offer advantages over traditional O-rings in terms of pressure handling, chemical compatibility, and operating temperature range.
The AEM X-rings are a high-performance seal made of AEM rubber with excellent high temperature and chemical resistance and wide applicability. Can be used in static or dynamic applications.
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Static sealing with rubber seals refers to sealing achieved using a rubber seal between two immovable components, where the rubber seal does not undergo significant deformation or movement. This sealing method is usually used for stationary or static applications, such as valves, pipe joints, flange connections, containers, and other static or low-speed moving sealing parts. Since there is no friction, the requirements for wear resistance are not high, but there are strict requirements on operating temperature, mechanical strength, and deformation rate.
O-rings: O-rings are annular rubber seals with a circular cross-section. They are commonly used in static sealing applications such as mechanical seals, pipe connections, valves, pumps, and automotive engines. O-rings can provide good sealing performance and are suitable for a variety of working conditions.
Flat gaskets: Flat gaskets are flat-shaped seals commonly used in static sealing applications such as flange connections, piping systems, and containers. They are usually made of rubber or other flexible materials and can fill in imperfectly flat surfaces to create a reliable seal.
X-rings: X-rings, also known as four-lip seals, have a cross-sectional shape. They provide better sealing performance than O-rings and can withstand higher pressures and greater deformations. X-rings are commonly used to seal hydraulic systems, pneumatic equipment, and rotating shaft seals.
Square rings: Square rings have a square or rectangular cross-sectional shape and are commonly used in static sealing applications such as valves, joints, and pipe connections. They provide a large sealing contact area and can provide good sealing performance in high-pressure and high-temperature environments.
V-rings: V-rings are rubber seals with a V-shaped cross-section that can be used for static seals and rotating shaft seals. They are suitable for sealing liquids, oils, and dust and are commonly used in automobiles, mechanical equipment, and hydraulic systems.
Nitrile Butadiene Rubber (NBR): Nitrile Butadiene Rubber is a general-purpose rubber material that has good oil and abrasion resistance and is suitable for static sealing applications of liquids and gases. It is commonly used to seal automobile engines, hydraulic systems, pipe connections, etc.
Fluorine rubber (FKM/Viton): Fluorine rubber has excellent high-temperature resistance and chemical resistance, and can provide excellent sealing performance under extreme environmental conditions. It is often used in static sealing applications that require high-temperature resistance and corrosion resistance, such as chemical equipment, the petroleum industry, aerospace, etc.
Ethylene-propylene rubber (EPDM): Ethylene-propylene rubber has excellent weather resistance, aging resistance, and acid, and alkali resistance, and is suitable for static sealing applications in outdoor environments and some special chemical media. It is commonly used in piping systems, cooling systems, etc.
Silicone: Silicone rubber has a wide operating temperature range and excellent high-temperature resistance, and can maintain elasticity and sealing performance under extreme temperature conditions. It is commonly used in high-temperature sealing applications such as hot water systems, engine components, stoves, etc.
Neoprene (CR): Neoprene has good oil and corrosion resistance and is suitable for static sealing applications of liquids and gases. It is commonly used in automobile manufacturing, shipbuilding industry, chemical equipment, etc.
Static sealing refers to the sealing achieved by rubber sealing elements without relative movement between two or more parts. The following are some characteristics of static seals:
High sealing performance: Static sealing usually requires a high degree of sealing performance, which can effectively prevent the leakage of media and the entry of external impurities.
Stability: Static sealing generally does not involve relative movement of parts, so the sealing elements are relatively stable in the static sealing state and will not cause wear and fatigue due to movement.
Lower friction and wear: Since there is no relative movement, the contact surface between the sealing element of the static seal and the parts has no friction, so friction and wear are relatively low, and the service life of the sealing element is longer.
Suitable for high-pressure and high-temperature environments: Static seals can usually adapt to higher pressures and temperatures, and some sealing elements of special materials can even be used under extremely high-pressure and high-temperature conditions.
Relatively simple design and manufacturing: Compared with dynamic seals, the design and manufacturing of static seals are relatively simple. Usually, only the cooperation of the contact surface between the sealing element and the part and the selection of materials need to be considered.
Not suitable for dynamic applications: Static sealing is only suitable for situations where there is no relative movement. If there is relative movement or vibration of parts, static sealing usually cannot meet the requirements, and dynamic sealing is required.
Rubber seals are widely used in many fields for static sealing.
Industrial Equipment: Rubber seals are used for static sealing in various industrial equipment, such as pumps, valves, pressure vessels, pipe connections, etc. They can effectively prevent medium leakage and the entry of external impurities, ensuring the normal operation and safety of the equipment.
Automobile industry: Rubber seals are widely used for static sealing in automobile manufacturing and repair. They are used for engine sealing, transmission systems, braking systems, fuel systems, and body parts to ensure the normal operation and sealing performance of each system.
Aerospace Industry: Rubber seals play an important role in the aerospace industry. They are used in static sealing applications such as aircraft engines, aerospace vehicle fuel systems, hydraulic systems, and pneumatic systems to ensure system reliability and safety.
Medical equipment: Rubber seals are widely used for static sealing in medical equipment, such as medical syringes, infusion sets, hemodialysis equipment, etc. They can effectively seal medical fluids and biological samples to ensure the hygiene and safety of medical equipment.
Electronic and electrical equipment: Rubber seals are used for static sealing in electronic and electrical equipment such as cable joints, switches, sockets, etc. They prevent dust, moisture, and other external substances from entering the equipment, protecting its normal operation and durability.
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