the humble hydraulic seal is the unsung hero of mechanical machinery. if you would like to buy the hydraulic motor,piston motor,pg电子下载-pg电子游戏 ,gearbox,hydraulic steering unit products,ningbo zhongyi hydraulic motor co., ltd absolutely is your best choice.anywhere where there is hydraulic action in a machine such as in reciprocating pumps, the internal combustion engine, aviation landing gear, vehicle suspension systems and so on; the list is endless. anywhere where there is a transfer of hydraulic power to linear motion, hydraulic seals are there to contain the oil or hydraulic fluid, ensure that pressure is contained with in a piston without passing by the piston head and to keep dirt and the environment generally away from the hydraulic action.
there are three main types of hydraulic seals in use in industry and for transport vehicles; the piston seal, rod seal and the wiper seal. these are mostly used in combination to carry out a particular specialised function. they can by dynamic seals that move with the piston or other moving machinery or static seals that are used for containment on the fixed part of the machinery.
the piston seal is a dynamic seal that move through a cylinder as part of it's operation. the piston seal is the seal that often needs to contain the pressure in the cylinder during its power stroke. as pistons move in both directions, modern seals have a complicated shape and may carry out more than one duty as set out below.
the rod seal is the type of dynamic or static hydraulic seal that contains that contains the hydraulic action within pressurised system throughout its cycle of motion. the wiper seal is normally a static type seal that is used to 'wipe' the rod to keep out dirt and other fluids out of the hydraulic system and protects the rod seal from being damaged by grit.
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