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- Commodity name： Mechanical water meter
Mechanical water meter
keyword:
water meter
Products Detail
◎尺寸及重量 Dimensions and weight
公称口径 DN (mm ) | 长L Length | 宽B Width | 高H Heigit | 连接螺纹 Connecting Thread |
15 | 165 | 85 | 114 | G3/4B |
20 | 195 | 85 | 114 | G1B |
25 | 225 | 85 | 114 | G1-1/4B |
◎技术参数 Technical parameters
公称口径 DN (mm ) | 过载流量Q4 Max Flow | 常用流量Q3 Q3Nominal Flow | 分界流量Q2 Transitional | 最小流量Q1 Q1Min Flow |
15 | 3.125 | 2.5 | 0.05 | 0.031255 |
20 | 5 | 4 | 0.08 | 0.05 |
25 | 7.875 | 6.3 | 0.126 | 0.07875 |
压损损失等级Grade of pressure loss |
| ДР63 | ESD保护ESD protection | > 10KV |
工作温度Max Temperature |
| 40°C (cold) or 90°C(hot) | 防护类型Protection type | IP68 |
工作电压Working voltage |
| 3.6V | 电池使用寿命Battery Iife | ≥6年 |
本地维护 Local maintenance |
| 1路TTL 3.3V | 公称压力Nominal pressure | Р≥1.0MPa |
环境相对湿度Ambient relative humidity |
| ≤95% | 上行通讯upward communication | GPRS/NB-IoT |
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