overview

Viewshine Dn20 Water Meter: Eco-Intelligent Precision for Sustainable Water Networks.
Crafted from durable composite materials and advanced IoT connectivity, it delivers zero-mechanical-wear operation with a 12+ year lifespan. The non-moving ultrasonic core achieves R800 dynamic-range accuracy while eliminating pressure loss and air measurement errors. Certified to IP68, WRAS, OIML, and MID B+D standards, its compact design supports 360° installation in any position with U0/D0 compliance.
Key Technical Features
1. Zero year lifespan of 12 years
The solid-state ultrasonic core eliminates mechanical degradation and has been validated through MID B+D accelerated aging testing.
2. Concrete representation of electromagnetic shielding values for anti-interference purposes
Carbon fiber composite materials can block electromagnetic interference.
3. Real time water purity analysis
The onboard sensor generates a water quality report every 15 minutes to increase detection.
4. Compressive strength of composite materials
Using advanced composite materials, the compressive strength is stronger, and the material is environmentally friendly to ensure recyclability.
5. Free installation angle (± 90 °) and self calibration function installation
Installation in any direction (± 90 °) that complies with U0/D0 standards, with automatic flow calibration and regional zoning statistics functions.
Technical Parameters
|
Type |
U-WR2 |
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Size |
DN15 |
DN20 |
DN25 | |
|
Range and Capacities |
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Q3 |
1.6/2.5 m³/h |
2.5/4.0 m³/h |
6.3 m³/h | |
|
Q4 |
3.125 m³/h |
5.0 m³/h |
7.875 m³/h | |
|
Q2 |
8 L/h |
12.8 L/h |
12.6 L/h | |
|
Q1 |
5 L/h |
8 L/h |
7 L/h | |
|
Qstart |
2L/h |
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Dynamic Range |
R250/R400/R500/R800 |
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Standard |
ISO4064:2014/ OIML: R49-2013 |
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Electrical |
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Battery |
3.6V, Li-battery |
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EMC |
E1 |
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Mechanical |
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Environmental Classification |
Class O |
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Protection Class |
IP68 |
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Medium Temperature |
0.1~50℃(T50) |
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Storage Temperature |
-25~60℃ |
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MAP |
1.6MPa |
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Metrological |
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Accuracy |
±5% in range Q1≤Q<Q2 ±2% in range Q2≤Q≤Q4 |
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Head Loss |
0.4bar @ Q3 |
0.25bar @ Q3 | 0.4bar @ Q3 | |
|
Communication |
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LoRa RF |
LoRaWAN Class A |
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NB-IoT |
Standard |
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Pulse Output |
Customized |
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| M-Bus/wM-Bus | Standard | |||
Dimension

|
DN |
L(mm) |
Meter Thread |
Pipe Thread |
Extension Pipe Used |
L2(mm) |
H(mm) |
H1(mm) |
|
15 |
110 |
G¾B |
R½ |
None |
82 |
16 |
82.2 |
|
115 |
G¾B |
R½ |
None |
82 |
16 | 82.2 | |
|
130 |
G¾B |
R½ |
None |
82 |
16 | 82.2 | |
|
165 |
G¾B |
R½ |
None |
82 |
16 | 82.2 | |
|
170 |
G¾B |
R½ |
None |
82 |
16 | 82.2 | |
|
20 |
110 |
G1B |
R¾ |
None |
82 |
18.5 |
83.2 |
|
115 |
G1B |
R¾ |
None |
82 |
18.5 | 83.2 | |
|
130 |
G1B |
R¾ |
None |
82 |
18.5 | 83.2 | |
|
190 |
G1B |
R¾ |
None |
82 |
18.5 | 83.2 | |
|
195 |
G1B |
R¾ |
None |
82 |
18.5 | 83.2 | |
| 25 | 110 | G5/4B | R1B | None | 82 | 21.8 | 87.2 |
| 150 | G5/4B | R1B | None | 82 | 21.8 | 87.2 | |
| 200 | G5/4B | R1B | None | 82 | 21.8 | 87.2 | |
| 225 | G5/4B | R1B | None | 82 | 21.8 | 87.2 | |
| 260 | G5/4B | R1B | None | 82 | 21.8 | 87.2 |
Our Services
1. Proficient in ultrasonic metrology technology
Utilizing our expertise in ultrasonic water measurement technology, we provide tailored solutions through our deep industry knowledge and precision engineering.
2. Advanced Manufacturing Excellence
High quality production is achieved through cutting-edge facilities and fine craftsmanship, ensuring precision and reliability for every meter.
3. Flexible global payment solutions
Meet diverse needs through secure payment methods such as wire transfer, Western Union, letter of credit, and PayPal to achieve seamless transactions.
4. Strong and competitive prices
Durable and safety certified instruments made of high-quality materials strike a balance between competitive prices and uncompromising accuracy.
5. Inclusive order policy
We provide specialized services for all customers and welcome small-scale orders with the same quality standards as bulk shipments.
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