Double -guide balance adjustment valve

The utility model discloses a double -guide balance adjustment valve, including valve body, gland and case, be equipped with in the valve body admit air the storehouse with give vent to anger the storehouse, the case includes valve rod and case base member, is equipped with disk seat and back pressure chamber in the valve body, on the case base member along the axial be provided with with the inlet channel of back pressure chamber intercommunication, be provided with the inlet port on the disk seat, case base member sealing connection includes sealing conical face, the conical surface or curved surface and transition curved surface with the edge of disk seat inner wall formation opening degree on the case base member on the disk seat inner wall, the utility model discloses an about the valve rod both ends respectively guide support utilize double -guide balanced structure on gland and disk seat, make the governing valve reduce the case when the little aperture of large pressure difference and shake in the val