Y hydraulicY hydraulic seal ring

After installation Y Hydraulic seals, lip seals which contact interface portions with a certain amount of interference, generating an initial sealing force to achieve the sealing effect. The initial excessive interference will cause friction sealing lip and activities increase the contact surface between the lip parts easy to wear and shorten the service life of hydraulic seals; original amount of interference is too small, the sealing lip and the contact surface between the activities of preload force is small, the sealing effect is not ideal, can not even meet the high pressure seal. When the working pressure is small, it can be considered products are used in non-pressure state, when the sealing force is only in contact with the sealing lip preload movable contact surface; the higher the pressure, not only to consider the sealing lip interference size, but also to consider the corresponding increase in the thickness, in order to increase the bending resistance of the sealing lip. Y hydraulic seal sealing lip can be molded or shaped mechanical cutting mode. Small lip size or dimensions are particularly large, the general compression molding. When using cutting mode cutting lip, required special mold, and more a process, a long production cycle. seal ring

 

On large construction machinery, Y hydraulic seals are often used in hydraulic or pneumatic cylinder, since only one-way seal, its product structure is provided within the outer lip lip A and B in order to obtain a better initial sealing effect, engineering and technical personnel design products should, in its inner and outer lip leave some amount of interference. After loading work trench, two hydraulic seal lip only, the groove diameter portion in contact with the sliding surface, a certain amount of prestress, sealing function. In operation, the fluid pressure at the sealing lip is deformed in the circumferential direction, completely fit on the surface of the piston rod and the cylinder mating surface, it acts as a seal.

 

After installation Y Hydraulic seals, lip seals which contact interface portions with a certain amount of interference, generating an initial sealing force to achieve the sealing effect. The initial excessive interference will cause friction sealing lip and activities increase the contact surface between the lip parts easy to wear and shorten the service life of hydraulic seals; original amount of interference is too small, the sealing lip and the contact surface between the activities of preload force is small, the sealing effect is not ideal, can not even meet the high pressure seal. When the working pressure is small, it can be considered products are used in non-pressure state, when the sealing force is only in contact with the sealing lip preload movable contact surface; the higher the pressure, not only to consider the sealing lip interference size, but also to consider the corresponding increase in the thickness, in order to increase the bending resistance of the sealing lip. Y hydraulic seal sealing lip can be molded or shaped mechanical cutting mode. Small lip size or dimensions are particularly large, the general compression molding. When using cutting mode cutting lip, required special mold, and more a process, a long production cycle.