Pumps Range - The Advantages & Disadvantages Explained

Very high accuracy and precision.
500 nanolitres per dispense up to 1.28 mL per revolution. CVs of 0.5% or better.In a constant flow scenario, pulsation will occur, but it's not a concern in dispensing applications, and it can be effectively managed in constant flow scenario using a controller.The tubing is the only part of the pump that comes into contact with substance pumped and wears out and can be changed swiftly. Due to the variability and flexibility of the tubing, the pump must be calibrated and recalibrated for high accuracy applications. It works effectively for pumping small particles in suspension when they are smaller than 10% of the tubing's inner diameter.Slight pulsation is inherent during operation but can be minimized by increasing the number of rollers, utilizing offset rollers, or employing the latest pulsation dampening technology like the Equlibar.

Metering Pump vs Dosing Pump

What is a metering pump?

A metering pump is a pump used to accurately dose and deliver liquids or chemicals. Its primary function is to accurately deliver a liquid to a target location based on a predetermined dosage or flow rate. Metering pumps usually have adjustable flow controls that allow the output flow rate to be precisely adjusted as needed.

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Features

• Precise metering
• Adjustable flow rate
• Multiple operating principles
• Wide range of applications

What is a dosing pump?

A dosing pump is a pump used to accurately add chemicals or other additives to a fluid system, with an adjustable flow control device that allows for precise adjustment of the amount of chemicals to be delivered as needed. This ensures that the concentration and dosage of the chemical is within a specific range to meet the requirements of the treatment process and to guarantee optimal treatment results. Dosing pumps are usually made of high-quality materials and advanced technology to ensure their stable and reliable performance, and at the same time, they can adapt to different working environments and requirements. For example, pH adjustment, disinfectant delivery, and control of chemical reactions in water treatment.

Features

• Precise dosing
• Adjustable flow rate
• Stable and reliable
• Automatic control
• Variety of options
• Corrosion resistance

Difference between metering & dosing pumps

Dosing pumps / dosing pumps application industry

Dosing/metering pumps are used in various industries such as pharmaceuticals, food industry, water treatment industry and many more.

In each of these industries, there is a need for a system that can inject measured quantities of substances into the fluid stream, and dosing/metering pumps fulfill this need perfectly.

The choice of different dosing/metering pumps depends on:

• The fluid being injected
• The level of accuracy required
• The flow pressure

Types of Metering/Dosing Pumps(ru,fr,pt)

Metering Pump

Piston/plunger metering pumps

A piston/plunger metering pump consists of a housing in which a plunger or piston is placed. As the piston reciprocates within the housing, fluid is drawn into the chamber during the suction stroke and then pushed out during the discharge stroke. The volume of the chamber and the position of the piston allow us to know precisely the amount of fluid being metered into the fluid stream.This system makes piston/plunger metering pumps the most accurate of the different metering pumps for metering fluid. Chemical feed pumps, for example, inject precise amounts of chemicals into process streams.

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Peristaltic metering pump

Using the peristaltic principle, through the compression and relaxation of the pipeline to promote the flow of liquid, applicable to the need for accurate measurement of the occasion.

Diaphragm Metering Pump

Diaphragm metering pump is a pump that uses a diaphragm to transfer liquid. A diaphragm is a membrane made of flexible material that is located between two chambers of the pump. As the pump operates, the diaphragm moves up and down, pressing liquid from one chamber into the other. It uses a flexible diaphragm instead of a piston to change the volume of the pump chamber, thereby increasing and decreasing the pressure of the fluid inside. So it is suitable for liquid transporting flocs.

Pulse metering pump

Pulse metering pump realizes metering and conveying by controlling the frequency and width of pulse wave, which is suitable for occasions requiring fast metering.

Dosing Pump

Mechanical Dosing pump

Mechanical dosing pumps are commonly used in dosing pumps and are a common type of dosing pump. Mechanical diaphragm pumps move diaphragms back and forth by mechanical actuation for fluid intake and discharge. They are also subject to different levels of wear than piston pumps , mechanical diaphragms are also subject to pulse discharges and other effects. However, this can be mitigated by having two diaphragm settings. Another advantage of mechanical dosing is that their construction makes them hermetically sealed, making them the best choice for toxic fluids.

hydraulic Dosing pump

A hydraulic dosing pump is a dosing pump that uses hydraulic power to drive the dosing mechanism. It controls the flow of dosing liquid by utilizing hydraulic pressure to move a diaphragm or plunger. Hydraulic dosing pumps are widely used in a variety of industries and applications where precise dosing of chemicals or additives is required. One of the advantages of hydraulic dosing pumps is that they can handle a wide range of flow rates and pressures, making them flexible for a variety of dosing needs. HY-ZR series hydraulic dosing pump is an integrated pump that provides precise dosing performance with minimum maintenance. It is integrated with a safety valve to prevent overload pressure.

Solenoid Dosing Pump

The best choice for dosing systems

Selection Considerations

• The flow rate that needs to be precisely controlled
• The type of liquid to be treated
• Volume of liquid to be added
• The cost of the pump

How to maintain the pump

• Clean regularly
• Check lines and seals
• Replace parts regularly
• Calibrate flow rate
• Keep it dry
• Adjust the controller

Summary