How Does A Solenoid Pump Work?

How Does A Solenoid Pump Work

What is solenoid pump?

Solenoid pump is a form of positive displacement pump, also known as a electromagnetic pump, that uses a diaphragm and solenoid assembly to discharge fluid into a discharge line. It is used to dispense or inject a precise amount of fluid into a process.

The working principle of solenoid pump

Solenoid dosing pump uses electromagnetic push rod (composed of electromagnet and spring assembly) to drive the diaphragm in the pump head reciprocating movement, causing the change of volume and pressure in the chamber of the pump head, and the change of pressure causes the opening and closing of the suction and discharge valves to achieve quantitative suction and discharge of liquid. This design is especially suitable for conveying small flow and low pressure pipeline liquids.

Solenoid dosing pump video

Below is the unboxing video of HAOSH H series electromagnetic dosing pump, which is a typical solenoid pump with compact size and easy operation.

Solenoid metering pump products


HAOSH solenoid dosing pumps are designed to solve problems such as scaling, corrosion and microbial accumulation. These problems can reduce the quality and efficiency of water system processes. Water entering the plant needs to be treated before and after use in order to be reused or discharged to the environment.