This series of high pressure pump has the characteristics of high pump efficiency, stable operation, small wear, compact structure, large flow, convenient replacement of wearing parts, convenient and time-saving. Configure pressure regulating valve and relief valve. The pressure regulator can adjust the working pressure, and the relief valve has the function of overpressure overflow to ensure the safety of use. Suitable for desulfurization out of sale, filter press cleaning, steel plant dephosphorization, power plant, heat exchange machine, evaporation tank of all kinds of tank dirt cleaning, food factory, water atomization powder, all kinds of municipal, industrial and mining enterprises sewage pipe, material conveying pipe cleaning and other conditions requiring water jet equipment, supporting a variety of driving forms.