Y hydraulic seals analysis

??Xinhua Xu polyurethane rubber products company Y-shaped hydraulic seal because of its high hardness, elasticity, oil resistance, wear resistance and low temperature, etc., it is widely used in the hydraulic cylinder.

??Hydraulic seals, according to the outer lip shaft or hole can be made without contour shape, and seal in order to play the role of self-protection. No lip contour Y-shaped hydraulic seals, the short lip sealing surface in contact with the sliding friction is small, good wear resistance, long life; long lip and a non-relative motion of the surface of a larger pre-compression, easy channeling work move. Due to the high polyurethane material Y-shaped hydraulic seals hardness, pre-compression capacity, the installation, the replacement often results in broken seals squeezed, rolled and undercut damage phenomenon, which would not achieve proper sealing effect, even failure. When assembled, the need professional installation tool into the cylinder of the cylinder.

??Y-shaped main features of hydraulic seals

??1. Good sealing effect, especially for solving the low pressure leak.

??2. reliable sealing performance, low friction, smooth motion.

??3. The pressure is good, using a wide pressure range.

??4. Simple structure, low cost, small space, easy to install

??5. poor reliability, the key parts to be carefully chosen, the bottom of the collar can be added to improve the anti-stress.

??6.Y for reciprocating piston-ring seal, the seal prone to shifting and "inversion" phenomenon, when the internal pressure is too high, it may happen "rubber extrusion" phenomenon.

Adverse processing includes a groove dimensions poorly designed, sealing surface roughness and seal groove coaxial degree does not meet the requirements of design drawings. After sealing groove machining, sheet size should be strict inspections, not only pay attention to other parts of the large size, the size of the inner seal groove and ignore small range. Those who fail to be repaired or scrapped.