Electromagnetic Dosing Pump

What is a Dosing Pump?

In industrial processes, the controlled addition of a specific amount or proportion of a chemical into a compound or mixture is called dosing, and the equipment used for this purpose is known as a dosing pump. This process can be carried out manually, without relying on any measurement or signal, or proportionally controlled based on feedback received from signal-generating equipment such as a flow meter, level sensor, pressure sensor, or pH sensor.

Working Principle of a Dosing Pump:

When mentioning dosing pumps, the first type that comes to mind is the electromagnetic, or solenoid, dosing pump. Electromagnetic pumps, which are used for dosing non-viscous chemicals at capacities of up to 100 liters per hour, contain an electromagnet that generates magnetic force when energized, moving an internal piston.

Inside the pump dosing head, a Teflon diaphragm, fixed to the piston, moves back and forth along with it. Through this motion, the chemical is drawn from the suction line into the dosing head and then pushed into the discharge line. The continuous movement of the fluid toward the discharge line is ensured by check valve balls on the pump head. These check valve balls are designed to allow fluid movement only in the direction of the discharge line.