Sealing ring

1、 NBR nitrile rubber sealing ring: suitable for use in petroleum hydraulic oil, glycol hydraulic oil, diester lubricating oil, gasoline, water, silicone grease, silicone oil and other media. It is the most versatile and cost-effective rubber seal. Not suitable for polar solvents such as ketones, ozone, nitrohydrocarbons, MEK, and chloroform. The general temperature range for use is -40~120 ℃.

2、 HNBR hydrogenated nitrile rubber sealing ring: It has excellent corrosion resistance, tear resistance, and compression deformation resistance, as well as good ozone resistance, sunlight resistance, and weather resistance. It has better wear resistance than nitrile rubber. Suitable for washing machinery, automotive engine systems, and refrigeration systems using a new environmentally friendly refrigerant R134a. It is not recommended to use in alcohol, ester, or aromatic solutions. The general temperature range for use is -40~150 ℃.

3、 SIL silicone rubber sealing ring: It has excellent heat resistance, cold resistance, ozone resistance, and atmospheric aging resistance. Has excellent insulation performance. But the tensile strength is worse than that of ordinary rubber and does not have oil resistance. Suitable for household appliances such as electric water heaters, irons, microwaves, etc. It is also suitable for various items that come into contact with the human body, such as water bottles, water dispensers, etc. It is not recommended to use in most concentrated solvents, oils, concentrated acids, and sodium hydroxide. The general temperature range for use is -55~250 ℃.

4、 VITON fluororubber sealing ring: It has better high-temperature resistance than silicone rubber, excellent weather resistance, ozone resistance, and chemical resistance, but poor cold resistance. It has resistance to most oils and solvents, especially acids, aliphatic hydrocarbons, aromatic hydrocarbons, and animal and vegetable oils. Suitable for sealing requirements of diesel engines, fuel systems, and chemical plants. It is not recommended to use in ketones, low molecular weight esters, and mixtures containing nitrate. The general temperature range for use is -20~250 ℃.

5、 FLS fluorosilicone rubber sealing ring: Its performance combines the advantages of fluorosilicone rubber and silicone rubber, with excellent oil resistance, solvent resistance, fuel oil resistance, and high and low temperature resistance. It can resist the erosion of oxygen-containing compounds, solvents containing aromatic hydrocarbons, and solvents containing chlorine. Generally used for aviation, aerospace, and military purposes. Exposure to ketones and brake oil is not recommended. The general temperature range for use is -50~200 ℃.

6、 EPDM EPDM sealing ring: It has good weather resistance, ozone resistance, water resistance, and chemical resistance. It can be used for alcohols and ketones, as well as for sealing in high-temperature water vapor environments. Suitable for bathroom equipment, car radiators, and car brake systems. Not recommended for food use or exposure to mineral oil. The general temperature range for use is -55~150 ℃.

7、 CR chloroprene rubber sealing ring: It has excellent resistance to sunlight and weather. Not afraid of refrigerants such as dichlorodifluoromethane and ammonia, resistant to dilute acids and silicone grease lubricating oils, but with a large expansion in mineral oils with low aniline points. Easy to crystallize and harden at low temperatures. Suitable for various environments that come into contact with the atmosphere, sunlight, ozone, and various sealed environments that are resistant to combustion and chemical corrosion. It is not recommended to use in chemicals such as strong acids, nitrohydrocarbons, esters, chloroform, and ketones. The general temperature range for use is -55~120