Characteristics
- High accuracy, magnetic drive, dry counter ensures long time clear reading
- The impeller is the only moving part in contact with water, made of high quality anti-corrosion material
- Non-return valve to avoid the reverse flow rate as option
- Pulse output as option
Working Conditions
- Water temperature: 0.1~30°C (T50 optional)
- Working pressure: ≤1.0MPa (1.6MPa optional)
- Allowable error: Q1≤Q<Q2 is ±5%; Q2≤Q≤Q4 is ±2% (T30) / ±3% (T50)
- Ratio (Q3/Q1): R80 / R100 / R125 / R160
Shape Dimension & Weight
| Diameter (DN) | Length L1 (mm) | Length L (mm) | Width W (mm) | Height H (mm) | Thread d | Thread D | Weight (Kg) |
|---|---|---|---|---|---|---|---|
| 15 | 259 | 165 | 96 | 106 | R1/2 | G3/4B | 1.26 |
| 20 | 294 | 190 | 96 | 107 | R3/4 | G1B | 1.5 |
| 25 | 382 | 225 | 101 | 114 | R1 | G1-1/4B | 2.48 |
| 32 | 385 | 230 | 101 | 114 | R1-1/4 | G1-1/2B | 2.81 |
| 40 | 430 | 300 | - | - | - | - | 4.89 |
Installation and Maintenance
- Choose the correct water meter according to size, flow rate and pressure; mount horizontally with dial face upward, flow direction as shown by arrow on meter body
- Allow 10×D straight pipe upstream and 5×D downstream (D being nominal diameter); ensure pipeline is clean before mounting
- Water exit side should always be higher than the meter; for DN15-40, do not connect meter to pipe directly, use the connectors provided
- If installed on inlet piping to a boiler, ensure no back flow of hot water to the meter
- Cold water meter: water temperature ≤30°C, outdoor temperature ≤50°C; hot water meter: ≤50°C
- Working pressure ≤1.0MPa, test pressure ≤1.6MPa
- Re-adjust the meter and clean the pipeline once every 2 to 3 years based on water quality; remove impurities and rust that may block the filter
- DN15-40 meter comes with 2 brass connectors, 2 brass nuts and 2 sealing washers; DN50-200 meter comes with flange terminations
The meter is sealed after proof reading and warranted for 12 months from the date of delivery. Warranty is void if the seal is broken.