调速阀的阀套是紧压在阀体的孔中,其过盈量为0.002～0.01毫米,阀套的孔内装有减压阀,为滑配合,间隙为0.005～0.012毫米(见图)。装配后,需要保证阀套孔的几何精度及与阀体孔的同心度,并保持上述的间隙,才能使减压阀动作灵活,保证整个 The valve sleeve of the speed regulating valve is pressed tightly in the hole of the valve body with the interference of 0.002-0.01 mm. The valve sleeve has a pressure reducing valve in the hole of the valve sleeve for sliding fit, with the clearance of 0.005-0.012 mm (see figure) . Assembly, the need to ensure that the geometric accuracy of the valve sleeve hole and the hole with the valve body concentricity, and to maintain the gap in order to make the valve flexible action to ensure that the entire