Overview
The U-WR High‑Accuracy Ultrasonic Water Meter represents Viewshine's residential ultrasonic water meter lineup, built with brass pipe bodies. Powered by ultrasonic measurement principles, this model maintains consistent metering precision. Free from rotating mechanical components, it delivers low pressure loss, an extended rated lifespan and stable long-run reliability for water utility projects.

Main Features
1. IP68
2. U0/DO
3. WRAS, OIML, MID B+D
4. Water Quality Test Report
5. Multiple communication
6. Installation in any position
7. Wide dynamic range: R400
8. Compact size and robust design
9. Flow partition metering statistics
10. Leakage detection, no air measuring
11. Data reissue and retransmission mechanism
12. No moving parts, 12 years+ designed service life
13. Strong anti-interference performance and will not affected by media or external magnetic fields
Technical Parameters
|
Specifications |
||||
|
Standards |
ISO 4064-1:2017;OIML R49:2013 |
|||
|
Accuracy class |
Class 2 |
|||
|
Nominal diameter |
DN |
mm |
15 |
20 |
|
Permanent flow rate |
Q3 |
m³/h |
2.5 |
4 |
|
Overload flow rate |
Q4 |
m³/h |
3.125 |
5 |
|
Transitional flow rate |
Q2 |
L/h |
10 |
16 |
|
Minimum flow rate |
Q1 |
L/h |
6.25 |
10 |
|
Measurement range |
R |
Q3/Q1 |
R400 |
|
|
Starting flow |
– |
- |
2 L/h |
|
|
Range for R400 |
– |
Q2/Q1 |
1.6 |
|
|
Temperature class (EN and OIML) |
– |
℃ |
T50/T30 |
|
|
Flow profile sensitivity class (EN) |
– |
– |
U0/D0 |
|
|
Counter indication range |
– |
m³ |
99999.999 |
|
|
Scale interval value |
– |
m³ |
0.000001 |
|
|
Maximum permissible error in the range of Q2 ≤ Q ≤ Q4 |
ε |
% |
0. 1℃<=T<=30℃: ±2%; 30℃ |
|
|
Maximum permissible error in the range of Q1 ≤ Q < Q2 |
ε |
% |
±5 |
|
|
Battery |
– |
V |
3.6 |
|
|
Max battery life |
Years |
12 |
||
|
Communication interfaces |
– |
– |
LoRaWAN/NB-IoT/Pulse |
|
|
Water pressure class |
(EN) |
bar |
MAP16 |
|
|
(OIML) |
0.3 to 16 |
|||
|
Maximum pressure loss |
– |
0.63 |
||
|
Installation orientation |
– |
– |
All Positions |
|
|
Reverse flow |
– |
– |
Measurable reverse flow |
|
|
Relative humidity |
– |
% |
≤ 100 |
|
|
IP rating |
– |
– |
IP68 |
|
|
Water meter tube material |
Brass |
|||
Dimension

|
DN |
L(mm) |
Meter Thread |
Pipe Thread |
L1(mm) |
L2(mm) |
H(mm) |
H1(mm) |
|
15 |
110 |
G¾B |
R½ |
202 |
82 |
19.5 |
87 |
|
115 |
G¾B |
R½ |
207 |
82 |
19.5 |
87 |
|
|
165 |
G¾B |
R½ |
257 |
82 |
19.5 |
87 |
|
|
20 |
110 |
G1B |
R¾ |
212 |
82 |
22 |
90 |
|
115 |
G1B |
R¾ |
217 |
82 |
22 |
90 |
|
|
190 |
G1B |
R¾ |
292 |
82 |
22 |
90 |
Why Choose Us
1. Precision Manufacturing System
VIEWSHINE adopts streamlined production processes paired with rigorous precision management. From prototype trial lots to full container shipments, we maintain stable product quality and reliable delivery schedules to support your project rollout.
2. Global Standard Qualifications
Our metering devices are accredited by internationally acknowledged standards such as MID, ATEX, ISO 9001, ISO 14001, ISO 45001 and IPMS. These official credentials demonstrate our persistent focus on operational safety, premium product performance and environmentally responsible manufacturing.
3. Customized Development Services
We deliver adaptable tailor-made OEM and ODM solutions to satisfy your distinct project requirements. Customization covers raw material selection, communication module configuration and packaging design, to align perfectly with your brand layout and technical specifications.
4. End-to-End Quality Supervision
Our quality supervision mechanism covers every manufacturing phase, ranging from incoming raw material inspection to final performance verification of finished goods. Complete traceable archives ensure every meter coming off the production line fulfills our strict quality criteria.
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