Product Description
Residential ultrasonic water meter is designed for domestic water metering and displaying applications.
Nominal diameter: DN15-DN40.
Applications: Tap Water Distribution System.
Product Features
♦Optional communication interfaces: NB-IoT, M-BUS, RS485, LoRa Wireless, Pulse and GPRS
♦Low pressure drop
♦Automatically records the daily total of the last 2 years and monthly total of the last 24 months
♦Low starting flow
♦No moving parts, wear-free ultrasonic technology,Maintenance-free
♦No optical-electrical conversion needed, digital remote communication
♦Bi-directional flow
♦Conforms with GB/T 778-2007 and CJ/T 434-2013 Ultrasonic Water Meter standards
Overall Dimensions
| Nominal Diameter | DN15 | DN20 | DN25 | DN32 | DN40 |
|---|---|---|---|---|---|
| L(Length of Flow Sensor) mm | 165 | 195 | 225⁄260 | 230⁄260 | 245⁄300 |
| L1(Length of Flow Sensor Plus extension pieces) mm | 261 | 310 | 347⁄382 | 356⁄386 | 376⁄431 |
| W(Width) mm | 110 | 110 | 110 | 110 | 110 |
| H1 (Open the height of the cover) mm | 167 | 172 | 177 | 186 | 197 |
| H(Height) mm | 102 | 107 | 112 | 121 | 132 |
| Pipe joint of Flow sensor | G3⁄4′ | G1′ | G1 1⁄4″ | G1 1⁄4″ | G2″ |
| Pipe Joint of Extension Pieces | R1⁄2 | R3⁄4″ | R1″ | R1 1⁄4″ | R1 1⁄2″ |
Technical Parameters
| Nominal Diameter | DN15 | DN20 | DN25 | DN32 | DN40 |
|---|---|---|---|---|---|
| Q3*#40;m3⁄h) | 2.5 | 4 | 6.3 | 10 | 16 |
| R100 Q2⁄Q1(m3⁄h) | 0.04 ⁄ 0.025 | 0.07 ⁄ 0.04 | 0.1 ⁄ 0.063 | 0.16 ⁄ 0.1 | 0.26 ⁄ 0.16 |
| R160 Q2⁄Q1(m3⁄h) | 0.25 ⁄ 0.016 | 0.04 ⁄ 0.025 | 0.07 ⁄ 0.04 | 0.1 ⁄ 0.063 | 0.16 ⁄ 0.1 |
| R250 Q2⁄Q1(m3⁄h) | 0.16 ⁄ 0.01 | 0.025 ⁄ 0.016 | 0.04 ⁄ 0.025 | 0.07 ⁄ 0.04 | 0.1 ⁄ 0.063 |
| Starting Flow L⁄h | 1.5 | 2.0 | 2.5 | 4 | 5 |
| Accuracy Class | Class 2 | ||||
| Pressure Class | MAP16(MAP10, MAP25) | ||||
| Envirnonmental Class | C | ||||
| Electromagnetic Class | E1 | ||||
| Pressure Loss Class | ▲P25 (▲P63, ▲P40) | ||||
| Flow Field Sensitivity Class | U5⁄D3 | ||||
| Temperature Rating | T30 (T50, T70, T90) | ||||
| Recording | Automatically records the daily total of the last 2 years and monthly total of the last 24 month | ||||
| Communication Interfaces | Infrared, M–BUS, RS485, 4–20mA, Lora, GPRS , Pulse, NB–IoT | ||||
| Power Supply | DC3.6V (Non–rechargeable Lithium Battery) | ||||
| Metering Cycle | 1 time ⁄ S | ||||
| Average Operating Current | ≤20µA | ||||
Selection Description
♦MTW Residential Ultrasonic Water Meter follow below order specifications:
