Differential pressure type axial flow pressure regulating valve

The utility model relates to the technical field of valves, in particular to a differential pressure type axial flow pressure regulating valve. The differential pressure type axial flow pressure regulating valve comprises a valve body, a valve seat and a valve clack, the valve seat has elasticity, the valve seat and the valve clack are both arranged in the valve body, and the valve clack can move in the direction away from or close to the valve seat in the axial direction of the valve body; the valve clack is of a hollow rotary body structure with the axial direction consistent with the axial direction of the valve body, and an annular cavity is formed between the valve body and the valve clack. In the axial direction of the valve clack, the end, facing the valve seat, of the valve clack is provided with two first sealing faces which are distributed in the radial direction of the valve body and intersect, and the included angle between the two first sealing faces is an obtuse angle. A protruding edge is forme