产品名称（Product Name）：Piston water meter

产品介绍（Product Introduction）：

This water meter is specially used to measure the total volume of water flowing through the tap water pipe or the total volume of pure water.

功能（Function）：

This type of water meter uses the fixed volume of the piston in the chamber to measure the total volume of water flowing through the water meter. This structure can significantly improve the sensitivity and measurement accuracy of the water meter, greatly improve the measurement range and measurement accuracy for long-term use, and is not affected by pipelines and can be installed in various locations.

主要技术参数（Main technical parameters）：

3.1 Maximum allowable working pressure: equal to 1.0MPa.

3.2 Maximum allowable working temperature: equal to 30℃.

3.3 Metering characteristics

Grade 2 water meter (accuracy grade is grade 2)

In the water temperature range of 0.1℃ to 30℃, the maximum allowable error of the water meter is ±2% in the high zone (Q2≤Q≤Q4) and ±5% in the low zone (Q1≤Q＜Q2). When the water temperature exceeds 30℃, the maximum allowable error of the water meter in the high zone is ±3%, and the low zone is still ±5%.

主要机械参数（Main mechanical parameters）：