Tag: dosing pump

How does the dosing pump measure? The dosing pumps of the same model and specifications have different internal structure designs, so the metering methods are different. For example, the working principles of plunger and diaphragm dosing pumps are different, and there is also a difference in metering accuracy.

The dosing pump is a special positive displacement pump that can meter the delivered fluid. It is generally composed of a control part, a driving part, a transmission part and an overcurrent part. The main difference between an electromagnetic diaphragm metering pump and other metering pumps is the driving part. The rated flow of the ATO dosing pump is in the range of 1.08-31.2 L/h, and the output pressure is 1.8-22.7 bar. The outlet flow of the dosing pump can be realized according to the stroke frequency.

The working principle of dosing pump is relatively simple, but because it involves highly corrosive liquid and high-precision flow, it has very high requirements for every part and every process of the machine. When the coil of the electromagnet is charged, the iron core pulls the electromagnetic push rod together, and at the same time, the corresponding five springs are compressed and the liquid is quantitatively sucked in. And when the coil of the electromagnet loses power, due to the disappearance of the electromagnetic force, the compressed 5 springs will be released, so that the liquid is quantitatively discharged.

Diaphragm dosing pump with specially designed flexible diaphragm instead of piston, under the action of driving mechanism to achieve reciprocating movement, complete the suction and discharge process. Due to the isolation of the diaphragm, the isolation between the metering fluid and the driving lubrication mechanism is truly achieved in structure. The use of high-tech structural design and the selection of new materials, greatly improve the service life of the diaphragm. Diaphragm metering pumps, combined with the excellent corrosion resistance of composite materials, have become the main pump type in fluid metering applications.