1. The principle of mechanical diaphragm metering pump is that the diaphragm in the mechanical diaphragm metering pump is connected with the plunger mechanism. Without hydraulic oil system, the plunger moves forward and backward directly to push the diaphragm forward and backward distortion.

2, the hydraulic diaphragm metering pump is evenly driven by hydraulic oil, which further overcomes the defect of excessive concentration of stress in the diaphragm of the dosing pump under the direct mechanical drive, and the mechanical diaphragm metering pump also improves the service life and working pressure upper limit of the dosing pump diaphragm. In order to overcome the working failure caused by diaphragm damage, we know that some dosing pumps are equipped with diaphragm damage sensors for automatic interlocking protection when the diaphragm breaks; The double diaphragm dosing pump head greatly improves its safety. This kind of dosing pump is especially suitable for some occasions where safety protection is sensitive. It can be said that this dosing pump is suitable for selection.

3, electromagnetic diaphragm metering pump automatic pump as a dosing pump, accept pulse automatic dosing, can be divided into frequency and multiple frequency. The positive and negative ratios can be adjusted. The electromagnet is a kind of dosing pump for transporting small flow and low pressure liquid with simple structure. Easy to control. Low energy consumption. Accurate measurement, convenient adjustment, cheap price, very popular in the industry. Mechanical diaphragm metering pump: The pump head is the flow part of the measured flow body, and its quality is generally reflected in the rationalization of the structure. Sealability. Corrosion resistance. The electromagnetic driving dosing pump is pulsed by the electromagnet, eliminating the motor and transmission mechanism, and the driving system is small and compact, and the main support of the low-pressure dosing pump.