Pumps designed to draw various liquids can be found in many forms, and different pump types are used in different ways. A dosing pump, which is a type of positive displacement pump, is often used to create a chemical or physical reaction. These pumps are responsible for injecting a product into the flow of a liquid and are used to integrate a substance into the flow of gas, vapor, or water.
What Is a Dosing Pump?
The question of what a dosing pump is often attracts attention. It can be described as a device that ensures the controlled dosing of various chemicals such as chlorine, liquid fertilizers, or acids. The movement of the diaphragm in dosing pumps creates the flow rate. Dosing pumps are highly important due to their ability to be used in many different fields. Examples include food processing and wastewater treatment.
What Are the Types of Dosing Pumps?
Dosing pumps can be produced in various types. Non-electric dosing pumps have a simple yet effective design. These pumps do not require electricity to operate and can be made from different materials depending on the type of chemical used. They are also used for chlorinating water. During the chlorine dosing process, all control can be performed manually. Factors such as water quantity, flow rate, and intended use of the water must be considered. A chlorine dosing pump can oxidize substances like nitrite, manganese, and iron found in the liquid or purify the water from bacteria and viruses.
Diaphragm fixed pumps fill and empty their chamber using diaphragms, pistons, and valves at the inlet and outlet. The piston draws the liquid into the pump chamber, and the required amount of chemical is injected at an appropriate rate. Another type is the diaphragm pulse injection pump. Like the fixed pump, it uses a diaphragm mechanism but does not have a constant flow rate. Instead of a continuous flow, it injects the chemical into the liquid in pulses with the help of a solenoid coil. The time interval between these pulses determines the flow rate. Although this type is less precise than the fixed injection pump, it stands out for its simpler design and lower cost.
Another type of dosing pump is the lobe pump. Lobe pumps allow a specific liquid volume to pass through gear wheels. Although they are not as precise as diaphragm pumps, they can be used for high-viscosity liquids that can self-lubricate to minimize wear. Peristaltic pumps are another highly precise dosing pump type. The liquid passes through a flexible, curved tube, and its flow is controlled by a rotating cylinder moved by a mechanical arm on the outside.
How Does a Dosing Pump Work?
Dosing pumps are also known as chemical metering pumps. They are used in many industries, including food processing, water treatment, industrial plants, mining, and medical laboratories. These pumps can operate in harsh environments with high temperature and pressure. Thanks to their strong design and functionality, dosing pumps offer many advantages. A properly selected pump type draws a set amount of liquid into its chamber. The predetermined chemical is then injected into the tank or pipe containing the liquid being dosed, completing the dosing process.
Dosing pump prices may vary depending on the technical features of the products. Professionals looking for dosing pumps can review innovative pump systems produced with advanced technology by Masdaf, a brand with over 45 years of experience in the industry.