O-RING

O-RING

1. Static Seal: In static sealing, the O-Ring remains in place and seals the interface between the two stationary components. It is used without movement. Its main function is to prevent leakage of liquid or gas under pressure. Examples of fixed seal applications include pipe connections, flanges, and other fixed components.
2. Dynamic Seal: In dynamic sealing, an O-Ring is moved or moved back and forth between assembled mechanical parts while maintaining a leak-tight seal. Dynamic seals operate where there is relative movement between components such as pistons, hydraulic cylinders and rotating shafts. O-Rings used for dynamic sealing applications must be able to withstand the abrasion and wear associated with movement while still providing effective sealing.

Nitrile Butadiene Rubber, NBR

Nitrile rubber is a synthetic rubber copolymer made from butadiene and acrylonitrile. It is a popular material for making O-rings. Because it is resistant to oil excellent for fuels and other petroleum-based liquids. It also has good mechanical properties and can resist abrasion and has a low cost. This makes it an option for widespread general use. Suitable for sealing applications in hydraulic systems, automotive engines, and fuel systems and other machinery that must come into contact with oil and fuel on a regular basis.

Some important properties of Nitrile Butadiene Rubber (NBR) include:

• Oil and Fuel Resistance: NBR O-rings withstand a wide range of oils, fuels and hydraulic fluids. This makes it ideal for applications that come into contact with petroleum-based liquids.
• Good mechanical properties: NBR O-rings have tensile strength. Resistance to abrasion and has good flexibility helps withstand mechanical stress and deformation.
• Temperature Resistance: NBR O-rings can generally operate in a temperature range of -30°C to 120°C (approximately -22°F to 248°F), although special formulations can extend this range.
• Cost Effective: NBR O-rings are a low-cost material which makes them cost effective compared to other elastomers. It is a popular choice for general sealing applications that require resistance to oil or petroleum-based liquids.

Although NBR rubber is excellent in oil and fuel related applications. However, they may not be suitable for applications that require resistance to harsh chemicals, high temperatures, or ozone exposure. Therefore, application specific requirements must be considered when selecting NBR materials.

Fluoroelastomer, FKM

It is a type of synthetic rubber (Synthetic Rubber) that contains fluorine, carbon, and hydrogen atoms. It is highly resistant to heat, chemicals, and solvents. They are often used in applications that require excellent temperature resistance and chemical compatibility, such as automotive, aerospace. oil and gas and chemical processing. This is due to its ability to withstand high temperatures and exposure to a wide range of chemicals and fuels. It is known for its compressive strength low and good mechanical properties. Overall, FKM rubber is valued for its durability, chemical resistance and thermal stability. This makes it a popular choice for a variety of applications. FKM tires generally have a temperature range of -20°C to 200°C (-4°F to 392°F) for continuous use. However, some special FKM compounds can withstand higher temperatures of up to 250°C (482°F) or more for short periods of time.

Fluorocarbon (Fluorocarbon) is a term related to fluoroelastomers. (Fluoroelastomer, FKM) but refers to different materials. Where fluorocarbon (Fluorocarbon) is an organic compound (Organic Compounds) that consists of carbon and fluorine atoms. This compound is known for its strong bonds. Strong carbon-fluorine which has unique properties such as chemical stability and resistant to high heat Low friction, resistance to solvents, etc.
Although both terms are related to the use of fluorine in materials, Fluorocarbons generally refer to a broader class of organic compounds consisting of carbon and fluorine. Meanwhile, fluoroelastomer refers to a type of synthetic rubber containing fluorine atoms that is especially resistant to heat, chemicals, and oils.

Some important properties of fluoroelastomer rubber (Fluoroelastomer, FKM) including:

• Chemical Resistance: FKM rubber has excellent resistance to a wide range of chemicals. Including fuels, acids and solvents. This makes it ideal for use in applications that require contact with harsh chemicals.
• Temperature resistance: FKM rubber can withstand high temperatures better than other elastomers. It maintains its flexibility and mechanical properties at high temperatures. This makes it suitable for applications where heat resistance is important.
• Low compressive strength: FKM tires have low compressive strength. This means that the tire can maintain its shape and sealing properties over time. even under pressure or compression.
• Excellent environmental resistance: FKM tires are resistant to weather, ozone and UV rays, making them ideal for outdoor use where the elements are taken into account.
• Good mechanical properties: FKM rubber has good mechanical properties such as high tensile strength. Tear resistance and abrasion resistance makes it durable and long-lasting.
• Wide operating temperature range: FKM tires can work efficiently within a wide temperature range. Typically, from -20°C to 200°C (-4°F to 392°F) and beyond depending on the specific formulation.
• Electrical insulation properties: FKM rubber has good electrical insulation properties. This makes it suitable for use in electrical and electronic applications.
• FDA Compliance: Some FKM rubber compounds meet FDA requirements for food and pharmaceutical applications. To ensure safety and hygiene.

Perfluoroelastomer, FFKM

• FFKM is exceptionally resistant to many chemicals, including acids, bases, solvents, fuels and other aggressive liquids. This makes it suitable for applications that require contact with harsh chemicals.
• Thermal Stability: FFKM can withstand extremely high or low temperatures without significant degradation. Has excellent heat resistance. This makes them ideal for use at high temperatures where other elastomers can be damaged.
• Mechanical Properties: FFKM has good mechanical properties such as high tensile strength. Tear resistance and durability, able to maintain its integrity and performance under mechanical stress and deformation.
• Low compressive strength: FFKM has low compressive strength. This means that the tire can retain its shape and sealing properties over time even under pressure or compression.
• Gas Permeability: FFKM has a low gas permeability. This means they can effectively seal gases and prevent leaks in high pressure or vacuum applications.
• Weather Resistance: FFKM is resistant to weather, ozone, and UV rays, making it ideal for outdoor applications where sunlight and environmental elements are a consideration.
• Electrical insulation: FFKM has good electrical insulation properties. This makes it ideal for electrical and electronic work.

Silicone, VMQ

• High Temperature Resistance: Silicone rubber can withstand a wide range of temperatures. Typically -50°C to 200°C (-58°F to 392°F) and higher for some special formulations.
• Flexibility: Silicone rubber is known for its flexibility and resilience. This makes it ideal for applications that must withstand repeated deformation.
• Chemical inertness: Silicone rubber is generally chemically inert and resistant to water, oxidation, and exposure to ultraviolet (UV) light.
• Electrical insulation: Silicone rubber has good electrical insulation properties. This makes it ideal for electrical and electronic work.
• Biocompatibility: Silicone rubber is biocompatible. They are often used in medical devices and applications that come into contact with food or skin.
• Weather Resistant: Silicone rubber is highly resistant to weather, ozone, and deterioration. making it suitable for outdoor use.

Ethylene Propylene Diene Monomer, EPDM

• Weather Resistance: EPDM has excellent resistance to weather, ozone, and UV rays. This makes it suitable for outdoor use where exposure to sunlight and harsh weather conditions is required.
• Temperature Resistance: EPDM rubber can withstand a wide range of temperatures from -50°C to 150°C (-58°F to 302°F) depending on the specific formulation. This temperature resistance makes them useful in both hot and cold environments.
• Chemical resistance: EPDM has good resistance to many chemicals, acids and alkalis.
• Water and Steam Resistance: EPDM is known for its excellent water and steam resistance. This makes it a popular choice for applications that involve water sealing, such as plumbing and automotive cooling systems.
• Electrical insulation: Silicone rubber has good electrical insulation properties. This makes it ideal for electrical and electronic work.
• Flexibility: EPDM is a flexible material that can be molded and molded into various shapes. easily This makes it ideal for seals, gaskets and other applications that require flexibility.
• Good mechanical properties: EPDM rubber has good resistance to mechanical stress, abrasion and wear.

Polychloroprene, CR

• Oil and Chemical Resistance: Polychloroprene rubber is resistant to many oils, greases, chemicals and solvents.
• Weather Resistance: Polychloroprene rubber is highly resistant to weather, ozone, and sunlight. Therefore, suitable for outdoor use.
• Temperature resistance: Polychloroprene rubber has good resistance to high and low temperatures. Therefore, suitable for a wide range of temperature conditions. The specific temperature limits of polychloroprene rubber may vary according to the grade or formulation of the material and the application. However, polychloroprene rubber generally has a temperature range of approximately -40°C to 121°C (-40°F to 250°F). At temperatures below -40°C (-40°F), polychloroprene rubber may harden and lose its elasticity. As temperatures rise above 121°C (250°F), the rubber may begin to deteriorate. Loss of physical properties and become less effective.
• Flexibility: Polychloroprene rubber is a flexible material that can be molded and molded into various shapes easily, making them ideal for seals, gaskets and other applications that require flexibility.
• Tear Resistance: Polychloroprene rubber is known for its strength and tear resistance. Makes it durable and long-lasting.
• Waterproof: Polychloroprene rubber has good waterproof properties. Therefore, suitable for use in work that must come into contact with water.

Polytetrafluoroethylene, PTFE

It is a synthetic fluoropolymer known for its unique properties and wide range of applications. Has excellent chemical resistance had low friction. Therefore suitable for applications involving harsh chemicals. High temperature work and work that requires low friction.

Some important properties of polytetrafluoroethylene (Polytetrafluoroethylene, PTFE) including:

• Chemical Resistance: PTFE is highly resistant to chemicals, acids, and solvents. It is considered inert to most chemicals, which makes it suitable for use in corrosive environments.
• Temperature Resistance: PTFE has a high melting point. (up to approximately 327°C or 620°F) and can withstand a wide range of temperatures The temperature range of PTFE can vary depending on the grade, formulation, and specific application. But in general, PTFE can withstand temperatures from -200°C to 260°C (-328°F to 500°F).
• Non-stick properties: PTFE has excellent non-stick properties. This is why it is popular to use coatings on kitchenware such as non-stick frying pans.
• Low Friction: PTFE has low friction properties. This makes them suitable for applications where it is important to reduce friction and wear, such as bearings and sealing devices.
• Electrical insulation: PTFE has good electrical insulation properties. This makes it ideal for electrical and electronic work.
• Biocompatibility: PTFE is biocompatible. and is often used in medical applications such as catheters and prosthetic devices.
• Weather Resistance: PTFE is highly resistant to weather, ozone, and sunlight. Therefore suitable for outdoor use.

Polytetrafluoroethylene Encapsulated O-rings (FKM/PTFE)

It is a composite material that combines the chemical resistance of polytetrafluoroethylene. (Polytetrafluoroethylene, PTFE) matches the thermal and mechanical properties of fluoroelastomers (FKM). The PTFE encapsulation provides an additional layer of protection from aggressive chemicals, while the FKM provides flexibility and durability. This makes the combination ideal for use in harsh environments such as oil and gas chemical processing and the aerospace industry.

PTFE Encapsulated Viton typically has a temperature limit range of approximately -29°C to 204°C (-20°F to 400°F), however specific limits may vary depending on the formulation and filler decorations used.

Some important features of Polytetrafluoroethylene Encapsulated O-rings include:

• Chemical resistance: Excellent protection against many harsh chemicals.
• Temperature resistance: can withstand high temperatures. Therefore, suitable for heating applications.
• Mechanical Properties: Good flexibility due to fluoroelastomer (FKM) content.
• Low Friction: PTFE's low friction properties can reduce wear on moving parts.

Polyurethane, PU

It is a versatile polymer material used in a variety of applications. Due to its excellent mechanical properties and durability. Polyurethane may be thermosetting or thermoplastic. They have different characteristics according to the chemical structure and production process. Polyurethane O-rings are known for their resistance to abrasion. High tear resistance and flexibility. They are commonly used in hydraulic and pneumatic systems where resistance to wear and dynamic loads is important.

Some important properties of polyurethane (Polyurethane, PU) including:

• Mechanical Properties: Polyurethane is known for its high tensile strength, resistant to abrasion, flexibility and impact resistance. These mechanical properties make them ideal for applications requiring toughness and durability.
• Chemical Resistance: Polyurethane has good resistance to oils, greases, solvents, and other chemicals, making it suitable for many industrial applications.
• Temperature Range: Polyurethane O-rings generally operate effectively within a temperature range of -40°C to 100°C (-40°F to 212°F), although this may vary by formulation.
• Various Hardness: Polyurethane can be formulated to a wide range of hardness levels. From soft and flexible elastomers to hard plastics. This versatility allows polyurethane materials to be customized to meet specific application requirements.
• Weather Resistance: Polyurethane is highly resistant to weather, ozone, and sunlight. Therefore, suitable for outdoor use.
• Adhesion: Polyurethane has excellent adhesion properties and can adhere well to many surfaces. This makes them suitable for use as adhesives, coatings, and sealants.

Natural Rubber, NR

It is a multipurpose elastomer derived from the latex of the rubber tree. It is used in a variety of applications such as automobile tires, conveyor belts, adhesives, sealants and gaskets, shoes, medical equipment, sports equipment, etc.

Some important properties of Natural Rubber (NR) include:

• Flexibility: Natural rubber is highly flexible. This means that rubber can deform under stress and return to its original shape when the stress is released. This feature makes it suitable for applications that require high flexibility. In addition, natural rubber retains its flexibility at low temperatures. This is an advantage when used in cold or low temperature environments. However, the temperature range for natural rubber (NR) is quite limited compared to synthetic rubber and elastomers. Natural rubber generally has an operating temperature range of -50°C to 70°C (-58°F). to 158°F). Beyond these temperatures, natural rubber is subject to changes in its mechanical properties, flexibility, and durability. Additionally, natural rubber is sensitive to heat and can experience accelerated deterioration when exposed to high temperatures for long periods of time. This may result in reduced tensile strength, elongation and overall performance.
• Tensile strength: Natural rubber has good tensile strength. Makes it resistant to stretching without being damaged.
• Abrasion resistance: Natural rubber has good abrasion resistance. Therefore, it is suitable for applications where there are factors that cause wear and tear.
• Toughness: Natural rubber has a tough surface. This is useful for applications that require adhesion.
• Waterproof: Natural rubber is highly resistant to water and aqueous solutions.

Natural rubber can degrade over time, especially when exposed to sunlight, ozone, and certain chemicals. For applications that require increased performance in harsh conditions, synthetic rubber is often used instead.

O-Rings made from other materials If you have any needs, you can consult via email: [email protected]