
Small caliber ultrasonic water meter
This series of ultrasonic water meters not only has the characteristics of low pressure loss, non clogging, maintenance free, long service life, high measurement accuracy, and low starting flow rate of conventional ultrasonic water meters, but also has multiple wired and wireless transmission methods, replaceable batteries, low power consumption, ultra long standby time, and long-term storage of measurement data.
Technical Specifications
| Nominal caliber | Q3/ Q1 | Overload trafficQ4 | Common traffic Q3 | Threshold flow Q2 | Minimum flowQ1 | Minimum Reading | Maximum Reading ³ |
| mm | m3/h | L/h | m3 | ||||
| 15 | 400 | 3.125 | 2.5 | 10 | 6 | 0.0001 | 999999 |
| 250 | 16 | 10 | |||||
| 160 | 25 | 15.6 | |||||
| 20 | 400 | 5 | 4 | 16 | 10 | ||
| 250 | 25.6 | 16 | |||||
| 160 | 40 | 25 | |||||
| 25 | 400 | 7.875 | 6.3 | 25.2 | 15.8 | ||
| 250 | 40.3 | 25.2 | |||||
| 160 | 63 | 39.4 | |||||
| 32 | 400 | 12.5 | 10 | 40 | 25 | ||
| 250 | 64 | 40 | |||||
| 160 | 100 | 62.5 | |||||
| 40 | 400 | 20 | 16 | 64 | 40 | ||
| 250 | 102.4 | 64 | |||||
| 160 | 160 | 100 | |||||
Maximum allowable error:
a) 0.1℃≤T≤ 30℃
The maximum allowable error for the low zone (Q1 ≤ Q < Q2) is ± 5%;
The maximum allowable error for the high zone (Q2 ≤ Q ≤ Q4) is ± 2%;
b) 30℃<T≤ 50℃
The maximum allowable error for the low zone (Q1 ≤ Q < Q2) is ± 5%;
The maximum allowable error for the high zone (Q2 ≤ Q ≤ Q4) is ± 3%

| Nominal caliber | L | B | H | h | Connecting threads/D | weight |
| mm | kg | |||||
| 15 | 165 | 90 | 87 | 150 | G3/4 B | 0.8 |
| 20 | 195 | 90 | 87 | 150 | G1B | 1 |
| 25 | 225 | 90 | 107 | 170 | G1 1/4B | 1.5 |
| 32 | 230 | 90 | 107 | 170 | G1 1/2B | 1.8 |
| 40 | 245 | 90 | 107 | 170 | G2B | 2.3 |
Note: The external dimensions and weight are for reference only, and the actual product shall prevail.
| Temperature Grade | T30/T50 | Electromagnetic environment level | E1、E2 |
| Maximum allowable pressure | 1.6MPa | Environmental Level | B-level, O-level |
| Reverse flow | measurable | Directional restrictions | Any direction |
| Communication methods | NB IoT, LoRa, 4G, RS-485, M-Bus, etc | accuracy class | Level 2 |
*We respect your confidentiality and all information are protected.
I’m Leo, the head of sales team at Huaxiang. Me and my team would be happy to meet you and learn all about your business, requirements and expectations.
*We respect your confidentiality and all information are protected.
I’m Leo, the head of sales team at Huaxiang. Me and my team would be happy to meet you and learn all about your business, requirements and expectations.