The nozzle loss of dosing metering pump pipeline is related to the total flow, length, pipe diameter, pipe fittings, types and total number of dosing metering pump pipeline accessories, and the equipment quality of dosing metering pump pipeline. The following methods can be adopted to develop the output power of dosing metering pump pipeline.

In the construction and renovation of small and medium-sized sewage treatment plants in China, the injection of dosing metering pump pipeline accounts for a large proportion of the investment of sewage treatment plant projects, especially for the sewage treatment plants with high pump head and long-distance water supply. The pipe diameter of dosing metering pump not only endangers the capital injection of the sewage treatment plant project, but also immediately endangers the convex concave of the output power of the sewage treatment plant.

When the length of the dosing metering pump pipeline and the total flow of the dosing metering pump pipeline are fixed, the larger the pipe selection is, the smaller the water flow is, the smaller the nozzle loss is, and the less the driving force is consumed, but the injection capital of the dosing metering pump pipeline is large; If the tube is selected to be small, the situation is the opposite of the above. Therefore, the effective determination of the pipe diameter of dosing metering pump is of key practical significance for the development of the output power of sewage treatment plant, the saving of driving force, and the reduction of project capital injection.

Reducing the remaining pipe length of Guanfeng dosing metering pump can not only save the injection capital, but also reduce the pressure loss / K head loss. Therefore, the pipe length of dosing metering pump should be greatly reduced. For the vertical mixed flow pump and centrifugal pump, in the past, the pipe of dosing metering pump was often installed into a curve, which led to the long pipe and many bends of dosing metering pump.