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Common sealing forms of pipe joints in hydraulic system of construction machinery
The commonly used sealing forms of pipe joints in construction machinery hydraulic systems mainly include plane seals and cone seals. The plane seals are divided into E-type column end seals, A-type column end seals, hinge bolt seals and flange seals. Face seals are divided into flared seals, 30° cone seals, 24° cone seals (that is, composite seals) and compression sleeve seals. In addition, there are other forms of seals. Although the specific structures of various seals are different, their The sealing principle is to form a sealing surface by extruding between the sealing element (such as O-ring, ED seal, copper gasket, combined gasket, etc.) and the sealed part