Liquid Turbine Flow Meter
The liquid turbine flow meter features simple structure, lightweight, high accuracy, excellent repeatability, fast response, and easy installation and...
Key Features
Performance Metrics
| Nominal Diameter | Flange Connection: DN15~DN300 Clamp Connection: DN10~DN100 Threaded Connection: DN4~DN100 |
| Ambient Temperature | -20℃ ~ 55℃ |
| Nominal Pressure | 1.6MPa ~ 25MPa |
| Impeller Material | Stainless Steel, Duplex Steel |
Key Features
Liquid Turbine Flow Meter: High-Precision Flow Measurement Solution
The Liquid Turbine Flow Meter is a primary velocity-based instrument designed for measuring the volumetric flow rate and total volume of liquids in closed pipelines. It consists of a sensor and a converter/display unit, offering high accuracy, excellent repeatability, and robust performance for applications in petroleum, chemical, scientific research, defense, and metrology.
How the Liquid Turbine Flow Meter Works
The sensor utilizes a multi-bladed rotor to sense the average fluid velocity, deriving the flow rate or total volume. It first converts the flow velocity into the rotational speed of the turbine, which is then converted into an electrical signal proportional to the flow rate.
The output signal is a frequency, which is easily digitized. When the ferromagnetic turbine blades pass a fixed magnet, the magnetic reluctance changes, generating an induced frequency signal. This frequency-modulated signal enhances anti-interference capability and simplifies the flow measurement system.
Core Advantages of Turbine Flow Meter Technology
High Accuracy & Repeatability
Typical accuracy of ±1%R or ±0.5%R, with high-precision models reaching ±0.2%R. Short-term repeatability up to 0.05%~0.2%.
Robust Signal & Wide Range
Wide original pulse frequency range (10Hz ~ 1.5KHz) and a wide turndown ratio up to 1:20 maximum for versatile liquid flow measurement.
Durable & Easy Integration
Simple structure with few moving parts, high-pressure resistance, low pressure loss, and support for multiple output signals and communication protocols.
Key Technical Specifications and Performance
The turbine flow meter offers a compact and lightweight structure, making it easy to install and maintain while providing high flow capacity. It features a fast response time and a low startup flow rate, ensuring reliable performance from the moment operation begins.
Its output is a pulse frequency signal, which is ideal for totalization and computer interfacing. This signal has no zero drift and offers strong anti-interference capability, making it a preferred choice for trade settlement and quantitative control applications.
Applications for Closed Pipeline Liquid Measurement
This instrument is widely used for measuring liquids with low corrosivity that are free of fibers, particles, and other impurities in closed pipelines. Its reliability and precision make it an ideal solution for flow measurement and energy conservation.
Beyond basic measurement, the liquid turbine flow meter can perform advanced functions like quantitative control and over-limit alarms. This versatility supports complex industrial processes and safety systems.
Structured Output and System Integration
The pulse frequency generated by the impeller's rotation is proportional to the flow rate. Simultaneously, this pulse frequency is converted via frequency-to-voltage conversion to indicate the instantaneous flow rate on the display unit.
The induction coil and magnet are fixed together within the housing, creating a stable and reliable sensing mechanism. The resulting frequency-modulated signal simplifies the overall flow measurement system design and enhances data integrity.
Detailed Liquid Turbine Flow Meter Features
| Feature Category | Specification / Description |
|---|---|
| Accuracy | Typically ±1%R, ±0.5%R. High-precision models can reach ±0.2%R. |
| Repeatability | Short-term repeatability up to 0.05%~0.2%. |
| Output Signal | Pulse frequency signal. No zero drift, strong anti-interference capability. |
| Frequency Range | Wide original pulse frequency: 10Hz ~ 1.5KHz. |
| Turndown Ratio | Wide, up to 1:20 maximum. |
| Design | Compact, lightweight, simple structure, few moving parts. Easy installation and maintenance. |
| Performance | Fast response, low startup flow rate, high-pressure resistance, low pressure loss, high flow capacity. |
| Integration | Supports multiple output signals and communication protocols. |
Ideal for Demanding Industrial Measurement
The liquid turbine flow meter's combination of high accuracy, durability, and easy integration has led to its extensive application across critical industries. Its ability to handle quantitative control and alarms makes it more than just a measurement tool.
By providing reliable and precise data on liquid flow in closed pipelines, this turbine flow meter serves as a cornerstone instrument for efficiency, safety, and trade settlement in modern industrial operations.
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