Differences Between Hot Water Meters and Cold Water Meters

Water meters are essential devices for measuring water flow, categorized into hot water meters and cold water meters based on application scenarios. They differ significantly in materials, performance, and usage environments.

：专为高温水设计，通常可测量30°C至90°C的热水，部分型号可承受更高温度。

: Designed for high-temperature water, typically measuring water between 30°C and 90°C, with some models capable of withstanding higher temperatures.

：适用于0.1°C至30°C的低温水，若用于高温环境易导致测量误差或损坏。

: Suitable for low-temperature water between 0.1°C and 30°C. Using them in high-temperature environments may cause measurement errors or damage.

：采用耐高温材料，如铜合金、不锈钢或特殊塑料，内部密封件需耐热抗老化（如EPDM橡胶）。

: Made of high-temperature-resistant materials like brass, stainless steel, or specialized plastics. Internal seals require heat-resistant and anti-aging properties (e.g., EPDM rubber).

：材料成本较低，常用普通塑料或铸铁，耐热性较差，长期接触热水易变形或泄漏。

: Use cost-effective materials such as standard plastics or cast iron, with lower heat resistance. Prolonged exposure to hot water may cause deformation or leaks.

：需通过更严格的校准，确保高温下计量精度。国际标准（如ISO 4064）对其误差范围有专门规定。

: Require stricter calibration to ensure accuracy under high temperatures. International standards (e.g., ISO 4064) specify their error margins.

：校准标准相对宽松，适合常温环境下的常规测量。

: Follow less stringent calibration standards, suitable for routine measurements in ambient temperatures.

：广泛用于供暖系统、太阳能热水循环、工业锅炉或家庭热水管道。

: Widely used in heating systems, solar water heating cycles, industrial boilers, or residential hot water pipelines.

：常见于自来水供应、农业灌溉、消防系统及普通家庭冷水管道。

: Commonly installed in municipal water supply, agricultural irrigation, firefighting systems, and residential cold water pipelines.

：因材料和工艺复杂，价格通常比冷水水表高30%-50%，但在高温环境下寿命更长（可达10年以上）。

: Due to complex materials and manufacturing processes, they are typically 30%-50% more expensive than cold water meters but have a longer lifespan in high-temperature environments (up to 10+ years).

：经济实惠，但若误用于热水场景会大幅缩短使用寿命。

: Cost-effective, but misuse in hot water systems significantly reduces their lifespan.

选择水表时需严格区分冷热类型，错误混用可能导致设备故障或计量失准。热水水表凭借耐高温特性适用于特殊场景，而冷水水表则是常温环境的性价比之选。

When selecting a water meter, it is critical to distinguish between hot and cold types. Incorrect usage may lead to device failure or inaccurate measurements. Hot water meters excel in high-temperature applications, while cold water meters offer cost-effectiveness for ambient environments.