A Zero Leakage Multi Valve for Tractor

A zero leakage multi valve for tractor was developed in order to solve the problems that middle position seal of domestic hydraulic output valve relied on the clearance of slide valve and valve opening，and it could not guarantee the median leakage.Mechanical controlled check single valve was added to existing hydraulic output valve plate under the premise of not changing the function of hydraulic system.This multiple valve not only ensured zero leakage of hydraulic output valve plate in the middle position，but also reduced power loss of hydraulic system.It improved reliability of hydraulic system.