Dosing pumps: What they are, how they work, and why they are indispensable

Dosing pumps: What they are, how they work, and why they are indispensable
If you are looking for a reliable way to dose liquids accurately, a dosing pump is the solution. Whether it’s for water treatment, agriculture, chemical processes, or food production, dosing pumps are essential in countless applications. In this blog, we explain what a dosing pump is, how it works, what to consider when buying a dosing pump, and why Milton Roy dosing pumps are an excellent choice.
What is a dosing pump?
A dosing pump is a pump that can deliver specified amounts of liquid with high precision. This is essential for processes that require an exact ratio of chemicals or additives. Examples include dosing chlorine or polymers in a water treatment plant or adding additives in chemical processes.
How does a dosing pump work?
There are various technologies used in dosing pumps:
Diaphragm dosing pump uses a flexible diaphragm
The flexible diaphragm is the heart of the pump in contact with the liquid and is driven by a variable eccentric drive or an electromagnet. The diaphragm can be directly connected to a drive or operated via a hydraulic plunger.
Plunger pump uses a plunger mechanism
In this type, the plunger is the heart of the pump in contact with the liquid. The plunger is driven by a variable eccentric drive.
Both types have a suction stroke and a discharge stroke. During the suction stroke, the plunger or diaphragm moves backward, creating a vacuum in the pump head. This opens the suction valve, allowing liquid to be drawn into the pump chamber.
During the discharge stroke, the plunger or diaphragm moves forward, the suction valve closes, reducing the volume in the pump chamber, and the liquid is dosed into the system through the discharge valve.
This process is continuously repeated, with an adjustable stroke frequency and stroke length, allowing the user to control the desired dosing very precisely.
Why are dosing pumps indispensable?
In industrial environments where reliability, accuracy, and safety are paramount, high-quality dosing pumps are not a luxury but an absolute necessity.
Whether it’s water treatment, chemical processes, oil and gas production, or pharmaceutical applications, Milton Roy pumps deliver performance you can rely on, 24/7.
Below, you’ll discover why Milton Roy dosing pumps are indispensable in your process.
- Unmatched dosing accuracy
Milton Roy is renowned for its exceptional precision. Thanks to advanced diaphragm and plunger technology, these pumps can dose with an accuracy of up to ±1% even under variable operating conditions. This precision is crucial when dosing chemicals such as acids, biocides, or polymers, where over- or under-dosing can have undesirable consequences.
- Robust reliability designed for continuous operation
Milton Roy dosing pumps are designed and built to perform under the most demanding conditions:
- Robust design and proven technology
- Materials suitable for demanding environments and chemicals
- ATEX-certified models available for explosive environments
The pumps often run for years without significant failures a major advantage in applications where downtime is unacceptable.
- Smart integration into automated systems.
Modern Milton Roy pumps are equipped with digital control options, including:
- Pulse frequency input.
- Analog control (4–20 mA).
- Integration into PLC/SCADA systems.
This enables real-time monitoring, alarming, and control a crucial requirement for your automated and digitized process.
- Modular and easy to maintain.
Thanks to their modular design, Milton Roy pumps are:
- Modular design your dosing pump tailored to your process.
- Quick to install.
- Easy to maintain.
Spare parts and support are available worldwide, and maintenance can often be performed in-house. As a result, the Total Cost of Ownership (TCO) is significantly reduced.
Conclusion: Dosing Pumps and Milton Roy a Perfect Combination
Dosing pumps play a key role in numerous applications where precision and reliability are crucial. Brands like Milton Roy make a difference in this through their technical expertise, innovation, and proven quality worldwide.
With over 85 years of experience and installations in more than 160 countries, Milton Roy has built unmatched expertise and reputation. Major companies in the petrochemical, food, pharmaceutical, and water sectors rely on Milton Roy pumps daily.
When you choose a Milton Roy dosing pump, you know you are investing in proven quality. Always request technical advice and specifications to ensure an optimal match.
If you are interested or have any questions, please feel free to contact us.
Or explore the Milton Roy dosing pumps, maintenance, and spare parts yourself.