The JPQ-C series progressive distribution valve is improved on the basis of JPQ-M. As we all know, JIQ-M adopts an integral form with high pressure resistance and low starting pressure. Through the improved JPQ- In addition to the advantages of JPQ-M, the C distribution system also adds a flow valve, an overpressure indicator, etc. The valve seat adopts the flow collecting type. When a certain lubrication point is blocked and the system is overloaded, the corresponding overpressure indicator rod is ejected, and the pressure oil is concentrated back into the lubrication pump without affecting the normal oil supply of other lubrication points. The external distribution valve is stable, reliable, and easy to maintain (when the foreign matter is stuck or exceeds the service life, only the slide block needs to be replaced, and the valve seat and the oil inlet and outlet pipes do not need to be removed) are widely used in various mechanical equipment Sealing pressure holding and lubrication of lubrication points.