Views: 0 Author: Site Editor Publish Time: 2024-09-20 Origin: Site
O-rings are a common sealing element used to prevent liquid or gas leakage and are widely used in various mechanical equipment and industrial systems. Depending on the different working environments and application requirements, O-rings can be made of a variety of materials. The following are common materials for making O-rings and their characteristics:
1. Fluororubber (Viton® / FKM)
Features: Fluororubber has excellent high temperature resistance, chemical resistance, and oil resistance. It can operate at temperatures up to 250°C and resist a variety of chemicals such as fuels, oils, acids, and alkalis.
Application: Suitable for sealing occasions that require high temperature and chemical resistance in the aerospace, automotive, chemical, and petroleum industries.
2. Silicone Rubber (Silicone / VMQ)
Features: Silicone rubber has excellent high and low temperature resistance and can maintain elasticity in the temperature range of -60°C to 200°C. It also has good weather resistance and electrical insulation properties.
Application: Widely used in food, pharmaceuticals, medical devices, and fields that require a clean and non-toxic environment.
3. Nitrile / NBR
Features: Nitrile has excellent oil resistance, wear resistance and aging resistance. Its operating temperature range is usually -40°C to 120°C.
Application: Commonly used in automotive engine systems, hydraulic systems, fuel systems and general industrial equipment.
4. Ethylene Propylene Diene Monomer (EPDM)
Features: EPDM is heat-resistant, ozone-resistant, weather-resistant, and has excellent resistance to water vapor and polar solvents. The operating temperature range is -50°C to 150°C.
Application: Suitable for automotive seals, coolant systems, water supply systems and outdoor equipment.
5. Neoprene (Neoprene / CR)
Features: Neoprene has good oil resistance, aging resistance and ozone resistance. It has good elasticity and tear resistance in the temperature range of -40°C to 120°C.
Application: Used in the automotive industry, refrigeration equipment and general industrial applications.
6. Polytetrafluoroethylene (PTFE)
Features: PTFE has excellent chemical resistance, high temperature resistance and low friction coefficient. It remains stable in the temperature range of -200°C to 260°C.
Application: Suitable for chemical industry, petrochemical industry, food industry and other applications requiring high temperature and strong corrosive environment.
7. Hydrogenated Nitrile (HNBR)
Features: Hydrogenated Nitrile is an improved version of nitrile rubber with better heat resistance, ozone resistance and chemical resistance, and an operating temperature range of -40°C to 150°C.
Application: Used in automotive engine systems, oil industry and high-temperature oil seals.
8. Polyurethane (PU)
Features: Polyurethane has excellent wear resistance, tear resistance and high strength. Its operating temperature range is usually -40°C to 90°C.
Application: Used in high-load and high-wear mechanical equipment, such as hydraulic systems and mechanical transmission parts.
9. Natural Rubber (NR)
Features: Natural rubber has good elasticity, tensile strength and wear resistance, but its oil resistance and heat resistance are poor, and the operating temperature range is -50°C to 70°C.
Application: Suitable for general industrial seals and occasions requiring high elasticity.
10. Acrylic Rubber (ACM)
Features: Acrylic rubber has good oil resistance and high temperature resistance, and can be used in a temperature range of -25°C to 175°C. It also has good resistance to oxides and ozone.
Application: Widely used in automotive transmission systems, gearboxes and other equipment that require high temperature resistance and oil resistance.
Summary
O-rings of different materials have their own advantages in terms of performance, applicable temperature and chemical corrosion resistance. The selection of suitable O-ring materials should be determined according to the specific working environment, medium, temperature and pressure factors to ensure the best sealing effect and equipment reliability.Jinwoseal provides O-rings of all the above materials, as well as other seals. Jinwoseal has more than ten years of experience in seal production and sales, and can provide you with professional and high-quality sealing solutions. We look forward to becoming your loyal partner.
