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Residential water meter, IC card prepaid water meter with motorized ball valve DN25
General description
Smart prepaid water meter adopts a contactless IC card to store water volume and monitor water consumption. Customers purchase water volume at vending points and upload water volume by swiping his IC card on the induction area of installed water meter inside or outside home to activate valve, which will open automatically to supply water.
During the period of water supply, the built-in microcomputer of water meter will automatically check and subtract the used water volume. Water meter has twice alarm function, when the purchased water volume reaches to alarm volume, water meter will close valve and stop water supply. Customer can resume water supply by swiping his IC card on water meter. When the remain water volume is used up, water meter will stop water supply completely and the customer needs to charge his IC card again.
Available in sizes 15mm to 25 mm with nominal flow rates of Qn 1.5m³/h to Qn 15m³/h. It's for cold water volumetric measurement, or hot water up to 90 ℃.
Functions
Key features
Brass multi jet water meter Large diameter up to DN200 for industrial water meter and irrigation water meter
Product data sheet
Port size (DN) | 15 mm | 20 mm | 25mm |
Measure unit | 0.1 m³ | ||
Measure range ratio (Q3/Q1) | 80 | ||
Overload flow (Q4) | 3.125 m³/h | 5 m³/h | 7.875 m³/h |
Constant flow (Q3) | 2.5 m³/h | 4 m³/h | 6.3 m³/h |
Demarcation flow (Q2) | 0.05 m³/h | 0.08 m³/h | 0.126 m³/h |
Miniumal flow (Q1) | 0.0313 m³/h | 0.05 m³/h | 0.0788 m³/h |
Minmum reading | 0.0001 m³ | ||
Maximum reading | 99999 m³ | ||
Alarm | automatic valve close | ||
Working temperature | 0.1℃~30℃ (cold water meter) | ||
0.1℃~90℃ (hot water meter) | |||
Flow sensitivity level | Up zone: U10 Down zone: D5 | ||
Pressure level | △P63 | ||
Working pressure rating | 0.03 Mpa - 1.0 Mpa | ||
EMC | E1 | ||
Environment safety level | B |
Installation
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