Multi -functional pressure control valve of automatically controlled formula

Multi -functional pressure control valve of automatically controlled formula goes up the valve body and sets up pressure adjusting screw, pressure regulating spring and converter, it compresses tightly the dog to be provided with in the middle valve body, it compresses tightly helpful lamina membranacea to go up between valve body and the middle valve body, the feedback lamina membranacea has been compressed tightly between middle valve body and the lower valve body, it controls the chamber in advance to form between effect lamina membranacea and the feedback lamina membranacea, the space of feedback lamina membranacea below forms the feedback chamber, be provided with the piston down in the valve body, interior valve port and supply valve, compress tightly the dog, the feedback lamina membranacea is in the same place with the piston fastening connection, piston place region is provided with the output cavity, it is provided with the input cavity to supply with valve place region, supply with the valve upward