Y type hydraulic valve seal is one of the reciprocating motion with a rubber seal, the cross section of Y type, referred to as the "Y type rubber seals. Is generally used in hydraulic or pneumatic valve relay aspects of operating systems, such as in the seal cylinder parts, piston parts.

　　Y type hydraulic valve seal is mainly made of high hardness of nitrile rubber moulding process, the product structure is simple, good sealing effect, increase the pressure sometimes self-styled role, but at high pressure pure rubber root out easily.

　　General pure Y type hydraulic valve seal is suitable for the oil pressure is less than 16 MPa, linear velocity is less than 0.5 m. s - 1, the temperature was minus 30 ~ 120 ℃.