High-capacity dosing pumps are essential in various industrial applications. These pumps are particularly useful in fields where large volumes of viscous, thick liquids need to be dosed or pumped with precision. A prime example of these pumps are the screw-type dosing pumps, which are used in industries like confectionery production, molasses processing, and sugar manufacturing.

In the realm of dosing pumps, the term “high-capacity” refers to those pumps that have higher capacities compared to standard dosing pumps commonly used in laboratory or small-scale industrial applications. While standard dosing pumps typically handle small volumes and are used for precise, low-flow applications, high-capacity pumps are designed for large-scale industrial processes.

Applications of High-Capacity Dosing Pumps

Unlike small dosing pumps used for laboratory chemicals or low-flow processes, high-capacity dosing pumps find their use in modern industries, large production lines, and industrial facilities. They are particularly useful for pumping ultra-viscous, sticky liquids that other pumps cannot handle effectively. Some of the primary applications include:

• Asphalt and hot tar pumping
• Rubber pumping
• Fish oil and molasses pumping
• Sugar syrup and candy production
• Chocolate and food product pumping
• Handling toxic, corrosive, or flammable chemicals
• Pumping liquids under extreme temperature conditions

High-capacity dosing pumps are frequently used for transferring and metering chemicals in industrial applications. These include precise dosing for water treatment, pool sanitation, chemical blending for paints, inks, and acid neutralization processes.

Industries Using High-Capacity Dosing Pumps

High-capacity dosing pumps are commonly used in a wide array of industries that require precise chemical dosing or pumping of viscous materials. Key industries include:

• Food industry
• Sugar production
• Dairy and milk processing
• Rubber manufacturing
• Pharmaceuticals
• Animal feed production
• Petrochemical and chemical industries
• Oil refineries
• Processing industries

These pumps are invaluable in chemical dosing and fluid transfer in these sectors due to their affordability, ease of use, and high efficiency.

Construction and Types of High-Capacity Dosing Pumps 

High-capacity dosing pumps come in various types, each with different designs, applications, and operating principles. The main types include:

1. Diaphragm-type high-capacity dosing pumps: These are among the most widely used dosing pumps. The design includes a diaphragm, pump casing, intake and discharge ports, dosing mechanisms, pump valves, and an electric motor. Unlike pneumatic diaphragm pumps, these use electric motors and have low flow rates, with limited dry-running capacity.
2. Piston-type high-capacity dosing pumps: These are the most powerful and durable dosing pumps. Operating on a piston-cylinder principle, they can achieve high pressure but require sealing components during operation. Not ideal for handling highly viscous or corrosive liquids, piston pumps are best used for low-to-moderate corrosion liquids or applications requiring high pressure and precise dosing, such as solvents and paints.
3. Screw-type high-capacity dosing pumps: These pumps, though expensive and less commonly used than diaphragm pumps, can handle viscous fluids with suspended particles. They are ideal for situations requiring efficient pumping of thick, slurry-like materials.
4. Hydraulic diaphragm-type high-capacity dosing pumps: These pumps operate under high pressure and are primarily used in hydraulic systems. With high chemical dosing efficiency, they are especially useful in applications where both high pressure and leak-free operation are essential.

Each of these pump types has a unique construction and operational principle, designed for specific industrial needs. Customers should carefully assess the structure and function of each type to choose the one best suited for their applications.

Features of High-Capacity Dosing Pumps

• Pressure: High capacity dosing pumps can withstand pressures above 3000 bar, making them suitable for challenging applications.
• Temperature range: These pumps can handle extreme temperature ranges, from -40°C to +400°C.
• Viscosity: Capable of dosing chemicals with viscosities ranging from high to ultra-high, up to 1,000,000 mPas.
• Self-priming: These pumps are designed to self-prime, reducing the need for manual intervention.
• Accuracy: High precision in dosing, ensuring consistent liquid flow during operation.
• Not dry-running capable: Unlike diaphragm pumps, they cannot run dry, requiring a continuous flow of liquid for safe operation.
• Durability: These pumps are highly durable and have a long operational lifespan with minimal breakdowns.
• Noise-free operation: They operate smoothly without vibrations or noise, providing a quiet working environment.

Advantages of High-Capacity Dosing Pumps

High-capacity dosing pumps offer numerous advantages over medium- and low-capacity pumps, including:

• Ability to handle high pressure and precise dosing
• User-friendly operation
• Enhanced safety during operation
• Wide range of specialized applications
• Self-priming capability
• Extended operational lifespan with minimal maintenance
• Quiet operation without vibrations or noise

Steps to Select the Right High-Capacity Dosing Pump

To ensure the most efficient and effective operation, it is important to choose the right high-capacity dosing pump for your needs. Here are the key steps to follow:

1. Identify the liquid pumping requirements: Consider flow rate, power requirements, and location of installation.
2. Determine the required pressure: Understand the necessary pressure conditions for your specific application.
3. Choose the appropriate high-capacity dosing pump type: Select the best pump type based on your needs.
4. Choose a reputable brand: Opt for trusted manufacturers that offer high-quality dosing pumps.
5. Consult with an authorized distributor: Work with an experienced supplier for expert advice on selection, installation, maintenance, and repairs.

At Vimex, we offer genuine, high-quality chemical dosing pumps with years of expertise. We provide pumps with comprehensive warranties and ensure that our products meet all standards, including certificates of authenticity (CO) and quality (CQ). We are committed to meeting the needs of even the most demanding customers.

Please refer to our pricing guide for various dosing pump models available for your needs.