In the field of water resource management and measurement, accuracy, reliability, and durability are the core criteria for evaluating the performance of water meters. The volume-type rotating piston water meter, with its unique measurement principle and excellent design, performs exceptionally well in scenarios requiring high-precision measurement. This article will take the rotating piston water meter with liquid seal technology as an example to explore its core advantages and applications.
Core Principle: Precise Volume Measurement
Unlike traditional speed-type water meters, this water meter employs a volume-type rotating piston measurement principle. It has a precise piston chamber, and the water flow drives the piston to rotate. Each rotation of the piston discharges a fixed volume of water. By accumulating the piston’s rotation count, the total amount of water flowing can be accurately calculated.
This “cup by cup” measurement method enables it to respond sensitively and accurately measure even at very low flow rates, achieving extremely low startup flow. This means that even tiny drips or fine flows can be effectively recorded, significantly reducing measurement blind spots and providing more accurate data support for water supply enterprises.
Outstanding Features: Designed for Long-Term Precision
1. Installation is Unrestricted, Precision is Unaffected
This series of water meters (such as LXHY-15～20) are designed to achieve true full-position installation. Whether on a horizontal, vertical, or inclined pipeline, their measurement accuracy is not affected. This provides great installation flexibility for complex pipeline layouts, eliminating the need to change the pipeline direction to meet the installation posture of the water meter.
2. Liquid-sealed dial, always clear
The counter (dial) of the water meter adopts a special liquid-sealing technology. This design completely isolates the internal mechanical counting mechanism from the external environment, effectively preventing the intrusion of fog, moisture, and dust, and resisting corrosion from the external environment. Even after long-term use, the dial can still remain clear and transparent, with clearly readable numbers, significantly extending the reliable service life of the meter.
3. High-quality materials, stable performance
The internal mechanism of the water meter is made of high-quality wear-resistant materials, ensuring the high stability of its characteristics during long-term continuous operation. This not only guarantees the durability of the measurement accuracy, but also gives the water meter a longer service life and lower failure rate.
4. High-precision Certification and Expansion Functions
Its measurement accuracy strictly complies with the ISO 4064 C-level standard, belonging to the high-precision measurement level. In addition, this series of water meters can also be equipped with remote transmission devices according to requirements, easily achieving remote reading of data and intelligent management, providing reliable basic data nodes for the smart water management system.
Widely applicable scenarios
This water meter is specifically designed for measuring the volume of cold and hot water flowing through pipelines, and is suitable for various scenarios such as residential, commercial, and industrial use.
Cold and hot water measurement: The cold water meter is applicable to water temperatures ranging from 0.1℃ to 50℃; the hot water meter has corresponding temperature adaptation ranges.
Pure water measurement: Its precise volumetric principle also makes it very suitable for measuring pure water without negatively affecting accuracy.
Stable working pressure: The design pressure rating is PN16, and the pressure loss rating is △p63, ensuring stable operation under normal pipe network pressure.
Strict error standards
The accuracy of the water meter is defined by a strict error band:
From the minimum flow rate (Q1) to the dividing flow rate (Q2): the error is ±5%.
From the dividing flow rate (Q2) to the overload flow rate (Q4): the error is ±2% (for hot water meters, it is ±3%).
This ensures that the water meter can provide highly reliable measurement data throughout its entire range.
Conclusion
In summary, this volumetric water meter, which integrates the rotary piston metering principle and liquid seal technology, has achieved high precision, unrestricted installation, persistent and clear reading, and outstanding long-term stability. As a result, it has become an ideal solution for precise water resource measurement and management in modern times. It not only meets the current high requirements for measurement accuracy, but also lays a solid foundation for the future development of smart water management through its reliable design.