Flow controllers play a crucial role in water supply and drainage systems, helping to maintain stable pressure, accurately control water flow, and prevent leaks. This results in more efficient system operation, reduced resource waste, and extended pipeline lifespan.
Water supply and drainage systems are essential for providing clean water and treating wastewater for residential areas, buildings, factories, and industrial zones. Accurately controlling water flow helps optimize operations, reduce water loss, save energy, and extend the life of the piping system. To achieve this, a flow controller is an indispensable device.
1. What is a Flow Controller?
A flow controller is an automatic device that helps monitor and adjust the flow rate of a fluid in a pipeline, ensuring a stable and optimal flow. They are widely used in water supply systems, wastewater treatment systems, HVAC systems, processing industries, and many other fields.
1.1. Structure of a Flow Controller A flow controller typically consists of the following main components:
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Flow Sensor: Measures the speed and volume of fluid moving in the pipeline.

Series KTM-800: Cảm biến lưu lượng điện từ
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Central Control Unit: Processes the signal from the sensor and adjusts the flow according to set parameters. (Automation term: Controller, PLC)
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Flow Control Valve: Changes the cross-sectional area to control the flow.(HVAC term: Control Valve)
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Display and Control Interface: Allows operators to monitor and adjust parameters.
1.2. Operating Principle The flow controller operates by continuously measuring the flow rate, comparing it to a preset value, and adjusting the control valve to keep the flow within the desired range. Modern controllers can integrate automation technology and connect to SCADA systems for remote monitoring.
(Image suggestion: A diagram of a typical flow control loop, showing the sensor, controller, and valve. Caption: "Flow Control Loop Diagram")
2. The Role of Flow Controllers in Water Supply and Drainage Systems
2.1. Ensuring Stable Water Supply Flow controllers help maintain stable pressure and flow in the water supply system, preventing interruptions due to sudden pressure changes.
2.2. Reducing Water Loss One of the major challenges of water supply systems is leakage and water loss. Flow controllers help detect abnormal fluctuations and make timely adjustments to minimize waste.
2.3. Saving Energy In pumping systems, effective flow control helps reduce the load on pumps, thereby saving electricity consumption and extending equipment life.
2.4. Improving Wastewater Treatment Efficiency Wastewater treatment systems require precise flow control to ensure treatment efficiency and prevent overload. Flow controllers help maintain a stable flow, optimizing treatment performance.
2.5. Protecting the Piping System Unstable water pressure and flow can cause pipe damage, leaks, and ruptures. Using flow controllers helps reduce stress on the system, extending the lifespan of the pipes.
3. Applications of Flow Controllers in Practice
3.1. Urban Water Supply Systems Flow controllers are installed at pumping stations and main pipelines to regulate the water supply to different areas, ensuring even water distribution.
3.2. Wastewater Treatment Plants In wastewater treatment systems, flow controllers help maintain a stable flow rate into the treatment tanks, preventing overload or inefficient operation.
3.3. Industrial Manufacturing Plants Industries such as food, pharmaceuticals, and chemicals often require precise water flow control to ensure product quality and save resources.
(Image suggestion: A photo of a flow controller installed in an industrial setting, perhaps on a large pipe. Caption: "Industrial Flow Controller Installation")
4. DLK's Flow Control Solutions
DLK is a reputable provider of flow control solutions in Vietnam, specializing in distributing products from Kometer, one of the leading manufacturers of flow measurement and control equipment.
4.1. Kometer Flow Controller Products at DLK DLK offers high-quality flow controllers suitable for many industrial applications:
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Electronic Flow Controllers: High accuracy, integrated with smart connectivity.
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Mechanical Flow Controllers: Durable design, suitable for harsh environments.
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Kometer Flow Sensors: Integrated into the system to accurately measure and control flow.

Series KTR-550-F: cảm biến lưu lượng tuabin
4.2. Consulting Services and Technical Support DLK not only provides products but also supports customers in selecting, installing, and maintaining flow controllers. DLK's experienced technical team is ready to provide free consultation, helping businesses optimize their water supply and drainage systems.
4.3. Quality Assurance and Warranty DLK is committed to providing genuine products that meet international standards with a flexible warranty policy. Kometer flow controllers at DLK undergo rigorous quality testing, ensuring high performance and a long lifespan. (Image suggestion: photo of various Kometer flow meter. Caption: "Various Kometer Flow Meter for different applications") Flow controllers play a vital role in the efficient operation of water supply and drainage systems, helping to maintain stable flow, reduce water loss, save energy, and protect the piping system. DLK, with flow control solutions from the Kometer brand, is a reliable choice for businesses and organizations needing to optimize their water supply and drainage systems. If you are looking for high-quality flow controllers, contact DLK for detailed advice.
DLK Trading Service Company Limited
Address: G6/14 Tran Van Giau, Le Minh Xuan Ward, Binh Chanh District, Ho Chi Minh City
Office: 111/7 Vuon Lai, Phu Tho Hoa Ward, Tan Phu District, Ho Chi Minh City
Website: https://dlk.com.vn/
Email: info@dlk.com.vn
Hotline: 070 357 0101 – 093 279 2697