Large pulp flow-regulating control valve

A large-scale serous fluid valve belongs to the field of a control valve for regulating flow ratio in the pipe system. The utility model comprises a bevel gear box, a guide roller, a support, a valve plate, a valve rod nut, a valve rod, a packing box, a stuffing ring, a left and a right valve bodies, a regulation clamp plate, a regulating screw, a sealing ring with T-shaped cross-section, and a connecting screw. With the rotation of the bevel gear box to drive the move of the valve rod nut and the valve rod, the valve plate is caused to move up and down and then the valve is opened and closed. The utility model solves the problems that the sealing specific pressure of the main sealing ring in the existing valve of this kind can not be regulated and has a poor sealing effect, the opening force of the valve is large and service life is short. Thereby the serous fluid valve is widely applicable to the pipe systems of water treatment, paper industry, pulping industry, and the like.