Solenoid Dosing Pumps
Operating Principle of Solenoid Pumps
Electromagnetic dosing pumps (sometimes referred to as solenoid pumps) fall into the category of diaphragm pump devices, where the moving element is an induction coil with a magnetic piston that moves within it.
Induction dosing pumps, like other diaphragm pumps, operate on the principle of volume displacement. One of the partitions in the working zone of such a device consists of a flexible membrane. When the membrane bends toward the working zone, the volume decreases, creating increased pressure that pushes the pumped medium through the outlet valve. When the membrane returns to its original position, the volume of the working zone increases, creating a vacuum that draws liquid through the inlet valve.
The pump design also includes a third valve for venting air, which is particularly important for the initial filling of the working zone with the medium.
Electromagnets (solenoids) are used as the drive for the pneumatic system in solenoid pumps. When electric current is supplied to the solenoid coil, a magnetic field is generated that pushes the piston outward, with one end connected to the center of the membrane. As a result, the membrane makes its first stroke. The return of the membrane for the next stroke occurs thanks to the force of the return spring, which is compressed during the previous stroke.
JLM Series Solenoid Pumps
Specifications:
- Flow rate: 1-20 L/h;
- Pressure: 1-10 bar;
- Motor: 28 W;
- Material: PVC, PVDF, AISI 304, 316.
Features of the Series:
- Wear-resistant electromagnetic drive without bearings;
- Adjustable stroke length and speed;
- LED display shows the speed as a percentage;
- Voltage and frequency: 110/220 V; 50~60 Hz.
Here are some tips for choosing solenoid dosing pumps
- Analyze the Temperature and Chemical Composition: Start by assessing the temperature and chemical composition of the liquid being pumped, as this will determine the choice of materials for the pump’s flow components;
- Determine Minimum and Maximum Volumes: Identify the minimum and maximum volumes of liquid that the pump needs to deliver. Keep in mind that high flow rates may negatively affect the accuracy of dosing smaller volumes;
- Consider Back Pressure: Be aware of the back pressure; some solenoid dosing pumps can operate at pressures up to 20 atmospheres, while most pumps are designed for pressures of 1-2 atmospheres;
- Seek Professional Advice: Listen to the opinions of professionals. When ordering a pump from “LET,” the sales department specialists can help assess how well the chosen pump meets your requirements and suggest alternative solutions if necessary.
Feel free to call ☎ +7 (495) 232-00-66 for more assistance.