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What are chemical dosing pumps and how do they work?
August 12, 2024

A dosing pump accurately delivers chemicals, nutrients, or other substances into water or other fluids for healthier livestock and crops and more productive and sustainable farming operations.

What is a dosing pump?

A chemical dosing pump, or metering pump, is a positive displacement pump. Typically small, but highly accurate, they deliver precise flow rates into a fluid stream making them virtually indispensable for automated tasks such as administering medications to livestock or adding fertilisers to crops. 

MixRite water-powered dosing pumps ensure a constant and continuous dosage, regardless of variations in water flow and pressure and require no electricity.

Having been used effectively in over a hundred countries for decades, MixRite pumps are renowned for their simplicity and reliability and recognised as an effective, affordable Dosatron alternative.

How does a dosing pump work?

The MixRite dosing pumps operate by using the flow of water as the power source, eliminating the need for electricity.

Here’s a very simple explanation of the components of a chemical dosing pump and a basic rundown of how it all works:

1. Chemical container: This tank or bottle holds the liquid for dosing. It may be medications, nutrients, or disinfectants, for example.

2. Pump: The pump has an inlet, a suction line, and a dosing line. The pumps vary in size depending on their application.

3. Injector: The role of the injector is to deliver the precise amount of additive into the main fluid stream and manage any pressure differences. It ensures that the additive is properly mixed with the main fluid and introduces it via a one-way valve. This prevents any pressure in the pipe from affecting dosage accuracy.

4. Foot valve: This is another one-way valve at the end of the suction line that keeps the pump primed, preventing any backflow of liquid.

5. Dosing line: A tube made of durable materials carries the chemical from the pump to the injector.

A super smart syringe

It works by drawing a measured amount of liquid additive into its chamber and then injecting it into a tank, trough or pipe.

The pump is the heart of the system. The pressure and flow of water activate a piston within its cylinder or chamber. As it moves it draws in and pushes out the liquid.

The injector is responsible for then adding the dose into the fluid stream. Water activates the injector which draws in and then introduces the required amount. As the dose is directly proportional to the volume of fluid entering the injector, accuracy is ensured regardless of any changes in flow or pressure in the main line. This high degree of precision prevents overdosing, which is why MixRite chemical dosing pumps are so reliable and environmentally friendly.

MixRite Chemical Dosing Pumps NZ

Benefits of using dosing pumps

– Accuracy: Dosing pumps provide precise control over the amount of substance added, ensuring consistent and effective treatment.

– Efficiency: Automated dosing systems save time and reduce labour costs; they require minimal manual intervention once set up.

– Versatility: These pumps can handle a wide range of chemicals and applications, making them suitable for all sorts of diverse farming needs.

Applications in farming

Accurate dosing of vaccines, antibiotics, and nutrients prevent disease outbreaks and ensure optimal growth of livestock. Our MixRite chemical dosing pumps are also used to administer fertilisers, pesticides, and other nutrients through irrigation systems in crop farming, a process known as fertigation.

By incorporating MixRite chemical dosing pumps into their operations, New Zealand farmers can ensure the health and productivity of their livestock and crops, leading to more profitable farming practices.