hydraulic Threaded Cartridge Valve

Introduction

Threaded Cartridge Valve, this threaded cartridge valve not only solves the problem of large volume and large amount of material, but also has the problem that the overload overflow protection action is not sensitive. In order to solve the above problems, the technical solution adopted by the present invention is such a threaded cartridge valve, which comprises a charge valve spool installed in the charge valve seat, and an overflow valve core installed in the overflow valve seat, and pressure regulation. a screw and an overflow pressure setting spring installed between the overflow valve core and the pressure regulating screw, the charge valve seat having a clamping portion at the rear end and an inserting device having a filling outlet at a side of the front end The insertion portion is provided with a seal ring groove between the oil-receiving inlet and the oil-filling outlet, the charge valve spool having a through hole communicating with the front end and the rear end thereof; the overflow valve seat having a rear end The clamping portion and the side of the front end are provided with an insertion portion of the overflow outlet; the insertion portion of the overflow valve seat is screwed into the rear end hole of the charge valve seat, the overflow valve seat a front end provided with an overflow inlet is inserted into a rear end hole of the charge valve spool, and a seal is arranged between the overflow valve seat and the charge valve seat, in the overflow a sealing ring separating the overflow outlet and the overflow inlet between the front end of the valve seat and the rear end hole of the charge valve spool a charge pressure setting spring is disposed between the overflow valve seat and the charge valve spool, and a minimum cross-sectional area of the charge valve spool through hole is equal to or larger than a seat of the overflow valve seat The cross-sectional area of the mouth.