Proportional volumetric dosing pump: what it is and how it works
The technology that makes dosing precise and constant
When an additive has to be injected into water in an exact proportion, the technology used to dose it makes all the difference. A proportional volumetric dosing pump does not work with a fixed quantity, but adjusts the dose to the volume of water passing through it: if the flow rate increases or decreases, the amount of additive injected varies accordingly, always keeping the same concentration. This is the principle behind Mixtron dosing pumps.
In practical terms, the Mixtron dosing pump is a hydraulic system for precise, constant dosing, installed directly on the water line. It makes it possible to create a homogeneous solution that is always proportional to the incoming water volume, without using electrical power. This ensures high precision even at low flow rates, a feature that makes these pumps suitable for industrial applications that demand reliability and accurate control.
The advantage is as simple as it is decisive: the additive concentration stays stable regardless of flow variations, with no need for manual adjustments between one use and the next. In this guide we look at what a volumetric dosing pump is, how it differs from other dosing systems and which criteria to consider when choosing the right one.
Why proportional dosing makes the difference
The strength of a proportional volumetric dosing pump lies in the direct link between additive and flow rate. Unlike fixed-quantity dosing, the dose follows the variations in flow, so the concentration stays the same in every working condition. This translates into three concrete advantages.
Always the correct concentration
With proportional dosing, the risk of overdosing, which can damage the surfaces or processes being treated, and that of underdosing, which would compromise effectiveness, are both eliminated. The result is a homogeneous and constant solution, in which the additive percentage remains reliable from the first to the last litre treated.
Independent operation
The Mixtron dosing pump uses the water's pressure and flow rate as its only driving forces and requires no electrical power. Once installed on the water line, it works with no manual adjustments between one use and the next: you connect it, set the desired percentage and it maintains that value on its own, reducing management time and the possibility of error.
Efficiency and savings
Dosing the exact quantity also means optimising product consumption and reducing waste. The constant control of the flow translates into lower operating and maintenance costs, a benefit that over time has a direct impact on the economics of the system, whatever the field of use.
How to choose the right volumetric dosing pump
There is no single dosing pump suitable for every situation: the ideal configuration depends on the application, the fluid to be dosed and the conditions of the system. Some criteria, however, guide the choice in every case.
The system's flow rate
The first parameter is the water flow rate passing through the line: it determines the size of the dosing pump and defines the working range within which the pump operates with precision. Correctly sizing the dosing pump against the actual flow rate of the system is the prerequisite for reliable dosing.
The dosing percentage
Depending on the additive and the process, a higher or lower percentage of product needs to be injected relative to the water volume. The choice of model must therefore be matched to the required dosing ratio, so as to always work within the most suitable adjustment range.
Material compatibility
The dosed fluid determines the materials in contact with it. Mixtron dosing pumps combine the lightness and flexibility of technopolymer with the robustness of anti-corrosion steel, with bodies in polypropylene (PP) and polyoxymethylene (POM) selected to resist the majority of additives. When the liquid is particularly aggressive, it is above all on the choice of seals that action is taken to ensure durability and reliability.
Finding the configuration with Mixtron
To navigate the available variants, you can use the Find Product tool, which filters the range according to the required characteristics. When the application has specific needs, the Mixtron consultancy service supports the customer in choosing the most suitable dosing pump, right through to a tailored quotation. The entire range can be consulted in the section dedicated to dosing pumps.
Mixtron, the precision of proportional volumetric dosing
Choosing a proportional volumetric dosing pump means relying on a technology that guarantees precision and consistency in every working condition, without electrical power and without continuous adjustments. This is the principle shared by every Mixtron solution: dosing that is always proportional to the flow rate, materials selected to last and reliable operation over time, in a product designed and manufactured entirely in Italy.
Precisely because it works on a universal principle, the proportional volumetric dosing pump is used in the most varied contexts, from fertigation to livestock farming, from water treatment to industrial processing. Whatever your application, the Mixtron team can help you identify the configuration best suited to your needs.
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