What kind of seal is the dust sealing ring?
Role of dust ringDust seal is very important for the protection of some hydraulic equipment. If the hydraulic equipment into a number of dust, not only will wear to the seal, but also for some guide sleeve and piston rod wear is more serious. In addition, if these impurities into the hydraulic medium, the operation of the valve will also have a certain impact on the pump function, and if the situation is worse, a lot of damage to these devices may. After using the dustproof ring, the dust and sundries of the wheat on the piston rod can be effectively removed, but the oil film on the upper part can not hurt any more, and is beneficial to the lubrication of the sealing element.
Types of dust guardThe categories of dust ring are increasing now. According to its function, characteristic, structure type and sealing mechanism, classification can be divided into several kinds. According to the structure of the form of points, there is a rectangular, chamfer, foot shape, and J shape and triangle; according to its function can be divided into single and double acting; according to the dust ring there is a skeleton are skeleton and skeleton type; according to the dust ring have two kind of combination divided into single type and combination type.
Material features of dust ringNow most of the dust ring is formed by rubber material processing, the material dust ring is the biggest characteristic of dry friction, hence the need for the rubber material has excellent wear resistance, and low compression permanent deformation. In recent years, dust and other materials seal slowly up, such as PTFE and O ring combination, its sealing effect is very ideal, but you can use a long time, now the place is more and more.
The dust ring is mainly used in hydraulic piston rod above the start, it is the role of the piston cylinder outside the dust to clear, avoid some particles inside the cylinder liquid and other contaminants penetrating sealing, improve sealing performance.
