ProMinent NL Guide: Dosing Pumps and DULCODOS Panel Systems

Accurate chemical dosing is an important part of many industrial and water treatment processes. The right dosing equipment needs to deliver a controlled amount of liquid while handling the pressure, flow rate, and characteristics of the medium involved. ProMinent NL specializes in this area, offering dosing pumps, dosing systems, measurement and control technology, and complete solutions for liquid handling.

The company provides equipment for applications ranging from water treatment and disinfection to chemical production, food processing, and demanding industrial processes. Its product range includes different types of dosing pumps as well as ready-to-use and configurable dosing systems such as the DULCODOS panel.

Brand Overview

ProMinent is a specialist in dosing technology and water treatment. Its Dutch website provides a broad range of equipment designed for precise liquid dosing and process control.

The company offers several pump technologies, including diaphragm dosing pumps, motor-driven diaphragm dosing pumps, hydraulic diaphragm pumps, plunger pumps, and peristaltic dosing pumps. The right technology depends on factors such as required capacity, counterpressure, medium properties, and the application itself.

One useful feature of the ProMinent product range is its Pump-Guide. Users can enter the required pump capacity and counterpressure and then narrow the results according to factors such as medium, viscosity, industry, operating conditions, and potentially hazardous areas. This can make the process of finding a suitable dosing pump much easier.

Dosing Pumps for Precise Liquid Handling

Dosing pumps are designed to deliver a defined quantity of liquid into a process. ProMinent explains that its dosing pumps generally work as oscillating positive displacement pumps. During the suction stroke, a defined volume of liquid enters the pump, while the pressure stroke moves that liquid into the dosing line.

This controlled approach makes dosing pumps useful when the amount of chemical or other liquid needs to remain consistent.

ProMinent's range covers a very wide capacity range, from applications requiring only a few milliliters per hour to process applications reaching up to 40,000 liters per hour.

Main Dosing Pump Types

Different processes require different pump designs. ProMinent offers several technologies:

• Diaphragm dosing pumps: Designed for accurate liquid dosing across many applications.
• Motor-driven diaphragm pumps: Suitable for robust, continuous dosing applications.
• Plunger dosing pumps: Designed for demanding applications requiring precise dosing.
• Peristaltic dosing pumps: Useful for challenging, viscous, abrasive, or shear-sensitive media.
• Process dosing pumps: Developed for demanding industrial environments, including chemical and petrochemical applications.

Choosing the right type depends on the process rather than simply the required flow rate. Material compatibility, pressure, viscosity, temperature, and the characteristics of the liquid should all be considered.

DULCODOS Panel Dosing System

For businesses that need more than an individual pump, ProMinent offers complete dosing systems. One notable option is the DULCODOS panel DSWc, a modular system designed for precise chemical dosing.

The DULCODOS panel has a capacity range from 0.01 to 1,000 l/h, depending on the selected pump, with counterpressure ranging from 10 to 2 bar. The system can accommodate up to three dosing pumps and can be configured with additional components and functions.

Its modular design allows the system to be configured around the requirements of a particular application. The components are selected based on factors such as material resistance, pump performance, and required functions.

Why Choose a Panel Dosing System?

A preconfigured dosing system can be more convenient than sourcing and assembling every component separately. The DULCODOS panel combines the pumps with mounting, piping, and hydraulic and electrical accessories in a coordinated setup.

Key benefits include:

• Modular configuration
• Up to three dosing pumps
• Compact design
• Plug-and-play installation approach
• Multiple configurable options
• Suitable pump selection based on application requirements
• Additional safety and convenience functions

The system can also include features such as a flow meter, depending on the chosen configuration.

Choosing the Right ProMinent Dosing Pump

Selecting a dosing pump should begin with the technical requirements of the process. ProMinent recommends starting with two important values: pump capacity in liters per hour and counterpressure in bar. These values help narrow down the suitable pump types.

You should also consider:

For difficult liquids, a peristaltic or specialized process pump may be more appropriate than a standard low-pressure diaphragm pump. ProMinent's Pump-Guide can help narrow the selection based on these requirements.

Applications Across Different Industries

ProMinent dosing equipment is designed for a wide range of industries. Water treatment is one important area, where accurate chemical dosing can support processes such as disinfection and water conditioning.

The equipment is also used in chemical production. ProMinent highlights applications involving hot, toxic, highly viscous, corrosive, or otherwise challenging liquids. Its range includes diaphragm, process, and specialized pumps for demanding environments.

Other applications include:

• Drinking water treatment
• Industrial water treatment
• Chemical production
• Food and beverage processing
• Pharmaceutical applications
• Oil and gas
• Petrochemical processes
• Cooling circuits
• Plastic production
• Paper production

Peristaltic dosing pumps, for example, can handle applications involving abrasive, viscous, outgassing, or shear-sensitive media and can be used for chemical dosing in several industries.

Complete Dosing Solutions Instead of Individual Components

One advantage of choosing a complete dosing system is that the components are designed to work together. ProMinent's DULCODOS systems can be supplied as tank-based or panel-mounted dosing systems and can be configured according to application requirements.

This can simplify installation and help businesses avoid the complexity of selecting every hydraulic and electrical component independently.

For a more demanding installation, it can also be useful to consider additional components such as injection lances, non-return valves, flushing equipment, overflow protection, safety devices, and pump mounting solutions. These accessories can help support a controlled and reliable dosing process.

Frequently Asked Questions

What does a dosing pump do?

A dosing pump delivers a controlled amount of liquid into a process. The pump can be adjusted to achieve the required dosing capacity, depending on the model and application.

What is the DULCODOS panel?

The DULCODOS panel DSWc is a modular dosing system from ProMinent. It can use up to three dosing pumps and offers a capacity of 0.01 to 1,000 l/h depending on the selected pump.

How do I choose the right ProMinent dosing pump?

Start by determining the required flow rate and counterpressure. Then consider the liquid's viscosity, temperature, chemical properties, application, and installation environment. ProMinent's Pump-Guide can help identify suitable models.

Where are ProMinent dosing pumps used?

ProMinent dosing pumps are used across water treatment, chemical production, food processing, pharmaceutical applications, cooling systems, and other industrial processes. Different pump technologies are available for different operating conditions.

ProMinent NL is a strong option for businesses looking for professional dosing technology rather than a simple standalone pump. Its product range covers everything from compact dosing pumps to high-capacity process pumps and modular DULCODOS dosing systems.

The most important step is choosing equipment according to the actual process requirements. Flow rate, counterpressure, liquid properties, temperature, chemical compatibility, and installation conditions can all affect the right choice. With its broad pump range and Pump-Guide, ProMinent provides a practical starting point for finding a suitable dosing solution.

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