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What are the types of flange rubber gaskets?(1)

Update:10-09-2020
Summary:

1. Natural rubber NR rubber gaskets have good corrosion […]

1. Natural rubber NR rubber gaskets have good corrosion resistance to weak acids and alkalis, salt and chloride solutions, but poor corrosion resistance to oils and solvents, and are not recommended for ozone media. The recommended working temperature is -57℃~120℃. Applications, inorganic salts, ammonia, weak acids and alkalis, etc.

2. Neoprene CR rubber gasket. Neoprene is a kind of synthetic rubber, which is suitable for corrosion by acid, alkali and salt solution with moderate corrosion. It has good corrosion resistance to commercial oil and fuel. However, its corrosion resistance is poor in strong oxidizing acids, aromatic hydrocarbons and chlorinated hydrocarbons. The recommended working temperature is -51℃~121℃. Applications are in brine, common refrigerants, carbon dioxide, non-oxidizing dilute acids, alkalis, etc.

3. Nitrile rubber gasket NBR is a kind of synthetic rubber, which is suitable for corrosion resistance to oil, solvent, aromatic hydrocarbon, alkaline hydrocarbon, petroleum and natural gas in a wide temperature range. It has good corrosion resistance to hydroxides, salts and near neutral acids. However, its corrosion resistance is poor in strong oxidizing media, chlorinated hydrocarbons, ketones and lipids. The recommended working temperature is 51℃~121℃.

Applications: hydraulic oil, oils of glycol and water-sensitive emulsions, inorganic and animal and vegetable oils, hot water, fuel, petroleum, dilute acids, alkalis and low-temperature salt solutions, silicone oil and grease.

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