Installation of smart remote water meter
1. The water meter should be installed in a place that is convenient for maintenance and reading, and free from exposure to sunlight, freezing, pollution, and mechanical damage.
2. The front end of the spiral wing type water meter should have a straight pipe with a diameter of 8-10 times the nominal diameter of the water meter, while other types of water meters should have a straight pipe with a diameter of no less than 300mm before and after.
3. For a water supply system that integrates life, production, and fire protection, if there is only one inlet pipe, a bypass pipe should be installed around the water meter.
4. Maintenance valves should be installed on the front, back, and bypass pipes of the water meter, and drainage devices should be installed on the water meter and the valve behind the meter. To reduce head loss and ensure the straight flow of water in the front pipe of the meter, gate valves should be used for maintenance valves in front of the meter. Household water meters in residential buildings may not have maintenance valves and dedicated drainage devices behind the meters.
5. The installation requirements for cold and hot water meters are basically the same except for different operating temperatures. The maximum operating temperature of the hot water meter is 110 ℃. If the hot water meter is installed in front of the boiler or heat exchanger, a check valve should be installed behind the water meter to prevent backflow.
6. There are two ways to install remote water meters: Remote water meters that only serve outdoor meter readings are relatively simple to install, as long as the water meter output system is connected to the data display device (relay) installed outdoors; Another way is to connect all remote water meters in the entire building or community to the community management department through repeaters and network controllers, and manage them uniformly through terminal devices.