Poor little flow control valve of BDO high pressure

The utility model relates to a poor little flow control valve of BDO high pressure, the one end of valve gap and valve body rigid coupling, the disk seat is installed in the inside of valve body, the one end of case run through the installation valve gap and stretch into the valve body inside with disk seat clearance fit, the case is formed integratively by first core, multistage formula case and screw thread case coaxial coupling, in the valve body, at the periphery of multistage formula case clearance fit multistage formula sleeve still, in the other end of valve gap rigid coupling gland still, multi -disc disc spring in dynamic dish spring stop collar, is still installed to the dynamic dish spring stop collar of installation between packing with hexagon nut and gland between the filler is with hexagon nut and gland. The utility model discloses a set up screw case, multistage formula sleeve and multistage formula case, make liquid medium realize striking many times in this governing valve, make this governing valve can be poor at the high pressure, realize stable adjusting function and longer life under the operating mode of low discharge, filled in that domestic and international high pressure is poor, little flow control valve's applied blank.