METERING DOSING PUMPS
Key Features
| METERING DOSING PUMPS | : | Product Name Metering Dosing Pump Pump Type Diaphragm / Piston / Solenoid / Peristaltic Flow Rate Range 0.1 – 1000 LPH Pressure Range Up to 20 bar (depending on model) Material of Construction PVC, PP, PTFE, PVDF, SS316 Drive Type Motor-driven / Solenoid-driven Control Type Manual / Automatic (Pulse or 4–20 mA Input) Stroke Adjustment 10% – 100% Accuracy ±1% of rated flow Temperature Range Up to 60°C (standard) Suction & Discharge Connection Hose or Threaded Fittings Mounting Type Wall-mounted / Base-mounted Power Supply 230V AC / 50 Hz (standard) Chemical Compatibility Acids, Alkalis, Chlorine, Antiscalants, Corrosion Inhibitors Applications Water Treatment, RO Systems, Chemical Processing, Food & Beverage, Pharmaceutical, Cooling Towers, Agriculture, Industrial Production Maintenance Replace diaphragm/seals periodically; inspect valves Safety Features Backpressure valve, Pulsation dampener, Leak-proof design Certifications ISO Certified / CE Compliant (where applicable) |
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Metering Dosing Pump – PrecisionChemical Dosing for Reliable Fluid Control
A Metering
Dosing Pump is a specialized device engineered to deliver precise,
controlled quantities of liquid or chemical into a
process system. It is an essential component in industries where accurate
dosing of chemicals, additives, or treatment solutions is required to maintain
process stability, product quality, and safety. With its exceptional accuracy,
repeatability, and reliability, the metering dosing pump ensures consistent
performance across a wide range of applications, from water treatment and
wastewater management to chemical processing, food and beverage production, and
pharmaceuticals.
What is a Metering Dosing Pump?
A
Metering Dosing Pump (also known as a chemical dosing pump) is a
positive displacement pump designed to move a precise volume of liquid within a
specified time period. It can handle a variety of fluids, including corrosive
chemicals, viscous solutions, and neutral liquids. The primary purpose of this
pump is to inject exact amounts of liquid into a process stream,
ensuring that the right chemical concentration is maintained for effective
operation.
The
flow rate of a metering pump can be adjusted manually or automatically,
depending on the system design. These pumps often operate with flow rates
ranging from 0.1 LPH (liters per hour) to 1000 LPH or more, with
pressure capabilities up to 20 bar or higher, depending on the model andapplic
Working Principle
The
metering dosing pump works on the principle of positive displacement.
During operation, the pump draws a precise volume of liquid into the chamber
(suction stroke) and then discharges the same volume into the process (discharge
stroke).
The
flow rate is controlled by adjusting:
- Stroke length – changing the piston or
diaphragm movement distance.
- Stroke frequency – altering the number of
pumping cycles per minute.
This
precise control mechanism ensures accurate and repeatable dosing, even under
fluctuating system conditions such as pressure changes or viscosity variations.
Types of Metering Dosing Pumps
- Diaphragm Type Metering Pump
Uses a flexible diaphragm to displace liquid, preventing contact between the fluid and mechanical components. Ideal for corrosive or hazardous chemicals. - Piston (Plunger) Type
Metering Pump
Uses a reciprocating piston for high-pressure dosing applications. Suitable for non-corrosive liquids requiring higher discharge pressures. - Peristaltic Dosing Pump
Uses a flexible tube squeezed by rotating rollers to move fluid. Best for small flow rates and hygienic or gentle dosing applications. - Solenoid Operated Dosing
Pump
Uses electromagnetic force to drive the diaphragm, offering compact design, precise control, and energy efficiency — perfect for low-capacity applications like RO systems.
Key Features and Advantages
- High Accuracy: ±1% repeatable dosing
ensures precise chemical injection.
- Adjustable Flow Rate: Easy manual or automatic
adjustment for flexible operation.
- Corrosion-Resistant
Construction:
Pump head materials like PVC, PTFE, PVDF, SS316, or polypropylene
resist aggressive chemicals.
- Leak-Proof Design: Diaphragm technology
prevents leakage and contamination.
- Energy Efficient: Low power consumption and
efficient performance even under continuous operation.
- Compact & Modular
Design: Easy
to install, maintain, and integrate into existing systems.
- Variable Control Options: Manual, analog, or digital
control with options for pulse or 4–20 mA signal input.
- High Chemical Compatibility: Suitable for acids,
alkalis, chlorine, coagulants, antiscalants, and other treatment
chemicals.
- Low Maintenance: Simple structure reduces
wear and tear, minimizing downtime.
- Safety Features: Built-in pressure relief
valve and backpressure control for safe operation.
Applications
Metering
Dosing Pumps are versatile and widely used across multiple industries. Somemajor applications include:
- Water & Wastewater
Treatment:
For dosing chlorine, alum, lime, antiscalant, and other chemicals to maintain water quality. - Reverse Osmosis (RO)
Systems:
Used for precise dosing of antiscalants, pH correction chemicals, and disinfectants. - Chemical Processing Plants:
Ensures consistent chemical reactions by maintaining exact reagent concentrations. - Food & Beverage
Industry:
For controlled addition of flavoring, colorants, preservatives, and sanitizing agents. - Pharmaceutical Industry:
Used in sterile chemical dosing and formulation processes requiring exact measurements. - Agriculture &
Fertigation:
For nutrient and fertilizer dosing in irrigation systems. - Cooling Towers &
Boilers:
Doses corrosion inhibitors, biocides, and scale preventers for system protection. - Paper & Pulp Industry:
Adds bleaching and sizing agents with precise control.
Technical Specifications (Typical Range)
|
1. Parameter |
2. Value / Range |
|
3.
Flow Rate |
4.
0.1 LPH to 1000 LPH |
|
5.
Pressure Range |
6.
Up to 20 bar |
|
7.
Stroke Adjustment |
8.
10% – 100% |
|
9.
Material of Construction |
10. PVC, PP, PTFE, PVDF,
SS316 |
|
11. Power Supply |
12. 230V AC / 50 Hz or as
required |
|
13. Drive Type |
14. Motor-driven /
Solenoid-driven |
|
15. Control Type |
16. Manual / Automatic
(Pulse or Analog Input) |
|
17. Mounting |
18. Wall or Base Mounted |
|
19. Temperature Range |
20. Up to 60°C (standard) |
|
21. Suction &
Discharge Connection |
22. Hose / Threaded
Fittings |
|
23. Accuracy |
24. ±1% of rated flow |
Maintenance and Safety
To
ensure long service life and performance consistency:
- Use only compatible
chemicals with recommended materials.
- Regularly inspect suction
and discharge valves for clogging or wear.
- Replace diaphragm or seals
periodically as part of preventive maintenance.
- Always prime the pump before
starting to avoid dry-running.
- Use a backpressure valve and
pulsation dampener for smooth flow.
Propermaintenance ensures accurate dosing, energy efficiency, and extended pump life.
Conclusion
A
Metering Dosing Pump is an indispensable solution for industries
requiring precise and consistent fluid delivery. Its high accuracy, chemical
compatibility, and robust design make it suitable for both simple and complex
dosing applications. Whether for water treatment, chemical processing, or
industrial production, a well-chosen metering dosing pump ensures safety,
reliability, and cost-effective operation.
With
advanced features, durable materials, and flexible control options, the
Metering Dosing Pump delivers consistent results — protecting your systems,
improving product quality, and optimizing chemical usage.
| METERING DOSING PUMPS | Product Name Metering Dosing Pump Pump Type Diaphragm / Piston / Solenoid / Peristaltic Flow Rate Range 0.1 – 1000 LPH Pressure Range Up to 20 bar (depending on model) Material of Construction PVC, PP, PTFE, PVDF, SS316 Drive Type Motor-driven / Solenoid-driven Control Type Manual / Automatic (Pulse or 4–20 mA Input) Stroke Adjustment 10% – 100% Accuracy ±1% of rated flow Temperature Range Up to 60°C (standard) Suction & Discharge Connection Hose or Threaded Fittings Mounting Type Wall-mounted / Base-mounted Power Supply 230V AC / 50 Hz (standard) Chemical Compatibility Acids, Alkalis, Chlorine, Antiscalants, Corrosion Inhibitors Applications Water Treatment, RO Systems, Chemical Processing, Food & Beverage, Pharmaceutical, Cooling Towers, Agriculture, Industrial Production Maintenance Replace diaphragm/seals periodically; inspect valves Safety Features Backpressure valve, Pulsation dampener, Leak-proof design Certifications ISO Certified / CE Compliant (where applicable) |
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