How Dosing Pumps are Used Chemical Handling

Dosing Pumps for Chemical Handling

The concept of dosing pumps was born in the 19th century with the birth of industry in Europe and with it the growing concerns for healthcare and water quality. Since then, technology has developed in leaps and bounds due to the growing need for increased safety and environmental protection. Metering out small doses of chemicals into liquids is a very controlled process which is achieved through dosing pumps. Think of them as injections; you need to make sure that the dosage of medicine in the syringe is 100% accurate before injecting it into a patient. The same can be said about dosing pumps for chemical handling. They provide an extremely precise flow rate for maximum control of the injection of chemicals into a viscous liquid.


Chemicals are Everywhere

Without realising it, we get into contact with something made from chemicals daily. Compounds extracted from nature and man-made substances contribute to economic growth but can be harmful to people and the environment, so great care needs to be taken to ensure that chemicals are precisely dispersed in any manufacturing process. Dosing pumps are the central part of an integrated system designed for the automatic dispersion of chemicals. They are used in a wide range of applications and industries, from wastewater treatment to chemical manufacturing as well as food processing as they are able to withstand challenging situations such as high temperatures and high-pressure environments.


Efficiency Combines with Technology

A dosing pump draws a certain amount of liquid into its chamber and injects the chemical into a tank or pipe containing the fluid that needs to be metered. It is powered by a motor that has a controller to turn the pump on and off thereby managing the flow rate. It is a positive displacement pump using reciprocating diaphragms to move the fluid. As it has no internal parts to rub against each other, it is very reliable as there is no friction or wear. The pump heads do not require seals or lubrication so there is no possibility of oil vapour contamination or leakage of the pumped medium.

The flow rate can be precisely controlled by either varying the speed of the motor or adjusting the length of the piston stroke ensuring that the process receives just what it needs without over- or under-injecting.

Dosing Pumps and Odour Containment

Surprisingly, dosing pumps are used in several wastewater applications to contain odours. It is a facility for automated injection of reagents into a wastewater network for the control of septicity and odour emissions. These systems are typically used at pump stations, sewer manholes and rising mains. However, hey can be installed anywhere odour containment is required.


Types and Applications of Dosing Pumps

Dosing Pumps

As dosing pumps are used in a number of applications where liquids need to be pumped in constant and precise amounts, there are four main types used, namely diaphragm, hydraulic, plunger and peristaltic. The use of the dosing pumps is dependent on the application.

Diaphragm pumps are used in many industries as they are portable and self-priming which means they require little maintenance. They offer changeable flow rates, are easy to install, are energy efficient and highly suitable for pumping chemicals and harmful fluids.

Hydraulic pumps are used for multiple high-pressure applications. The diaphragms are durable and provide constant accurate metering. The hydraulic control is very precise and requires minimal maintenance.

Plunger pumps are widely used in cleaning applications and processing technology in the chemical industry. These displacement pumps are suitable for small or large flow rates and achieve different pressure levels.

Peristaltic pumps are often used to move fluids that are sterile or aggressive chemicals, and to pump IV fluids and heart and lung machines during surgery. These are the most accurate metering pumps where the flow rate is controlled by a roller.


Read more about The Types Of Dosing Pumps here.


Turn to the Experts

At Prochem Chemical Pump Manufacturers, we understand that no two customers’ requirements are the same. Offering a wide range of chemical pumps and pumping equipment to fit the most demanding applications is what we are here for, no matter what your industry requirements. Our professional, independent and unbiased input with regard to pump management ensures that our customers are able to enhance run times and increase efficiency. Contact us to find out more about how our brands can assist you or call us for more information +27 11 392 1800.

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