What are the categories of rubber seals? What are the roles of seals?

Published:

2022-11-07

　　Rubber seal is a ring-shaped cover composed of one or several parts, fixed in the bearing of a ring or gasket and in another set of ring or gasket contact or form a narrow labyrinth gap to prevent the leakage of lubricating oil and foreign objects invasion.
　　Seals are generally divided into 5 categories according to the class, are
　　O-ring series: with fluorine rubber, nitrile rubber, silicone, ethylene propylene rubber, double fluorine rubber and other materials, this type of rubber is mostly used in a variety of machinery, resistant to a variety of petroleum oils and chemical media corrosion.
　　Y-type seal ring: because of the wear resistance of this type of material products, the choice of different materials can meet the different temperature areas (-60 degrees ~ 200 degrees), so such products are mostly used in hydraulic, mechanical, pneumatic and other industries.
　　V-seal ring: This is an axially acting elastic rubber seal that can be used as a pressureless seal for rotating shafts. The sealing lip has good activity and adaptability, and can compensate for large angular deviation and tolerance, which can prevent the internal liquid from leaking outward, and also prevent the external dust and liquid from entering.
　　YX type seal for hole: These products are mainly used for sealing the piston in the reciprocating hydraulic cylinder. Different materials can be selected to meet different working temperatures (generally back to -40 degrees ~ ~ +120 degrees).
　　YX type hole retaining ring: these products are suitable for cylinder working pressure greater than 16MPa with YX type seal ring, or cylinder eccentric force, to protect the role of the seal.
　　According to the material can be divided into: silicone rubber series|fluoroelastomer series|tetrafluoroethylene series|various shaped miscellaneous parts|metal rubber sealing ring
　　Material analysis of the seal ring:
　　Fluorine rubber: with high temperature resistance type, can withstand high temperature of 250 and low temperature of minus 30 degrees. Can be used as aerospace, chemical and other fields
　　Silicone rubber: with outstanding high and low temperature resistance, ozone resistance, aging resistance, can be used as medical rubber products
　　Butyl rubber: has good resistance to oil and aromatic solvents and other properties
　　Neoprene rubber: with good resistance to oil, solvents, chemical media and other properties

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