HWM Series IoT Large Diameter Vertical Woltman Water Meter

Product Overview

HWM Series IoT Large Diameter Vertical Woltman Water Meter is designed for large flow measurement applications. Its vertical Woltman structure, with the impeller shaft perpendicular to the flow direction, is widely used in municipal water supply, industrial production, and other large-scale water systems. The meter uploads data to the water management platform through NB-IoT/4G communication, enabling remote meter reading and billing. It can also integrate valve control functions, allowing accurate measurement and remote water flow control for convenient prepaid water management.

Product Features & Advantages

1. Adaptable to Large Flow Variations: Especially suitable for applications with significant flow fluctuations, such as industrial production and residential water supply systems.
2. Accurate Low-Flow Measurement: The low starting flow design ensures high measurement accuracy even under low-flow conditions.
3. Anti-Fouling & Suitable for Complex Water Environments: The integrated stainless steel filter effectively prevents debris accumulation and adapts to poor water quality conditions.
4. Flexible Installation: No straight pipe section is required before installation, making it suitable for limited installation spaces and restricted piping conditions.
5. Supports Smart Water Management: Supports remote meter reading and monitoring through wireless communication modules such as NB-IoT/4G.
6. Maximum Permissible Error
   • a. In the lower flow zone, from minimum flow rate up to excluding transitional flow rate, the maximum permissible error is ±5%.
   • b. In the upper flow zone, from transitional flow rate up to overload flow rate, the maximum permissible error is ±2%.
7. Wide Measuring Range & High Accuracy: Features a wide range ratio and high accuracy, suitable for residential, industrial, agricultural, and other water measurement applications.
8. Valve Control Function (Integrated/Optional): Integrated control valve supports local or remote valve opening and closing operations, including prepaid management, remote water shut-off, and water supply restoration functions.
9. Comprehensive Intelligent Functions: Some models support self-diagnosis, real-time monitoring of meter status (sensor faults, abnormal valve conditions, etc.), alarm notifications, data storage, and historical data query functions for convenient water usage analysis.

Flow Technical Specifications