Views: 1 Author: Site Editor Publish Time: 2022-03-25 Origin: Site
How to see the diameter of the prepaid water meter
The diameter of the prepaid water meter is also the diameter of the water inlet and outlet of the water meter. The water meter is divided into two types of movement: rotor type and screw type. The 15mm rotor type water meter used in general households is low in cost and easy to repair. There are also plug-in water meters, save money in the card, and then use the water. In some areas, the water business halls have this kind of business.
General household water meter diameters are: 15mm, 20mm, 25mm, 32mm. Most of them are 15mm and 20mm, and there are also a small number of 25 and 32 water meters. The diameter of the water meter depends on the diameter of the installed pipes at home, which is usually 4 points and 6 points.
This is more in line with design requirements because the meter has the best stability and durability at common flow rates.
If the future water volume of the water pipe has a certain margin, when selecting a water meter, the caliber specification of the water meter can be reduced by one gear. If the flow of the pipe with a diameter of 200mm is insufficient, a water meter with a diameter of 150mm can be installed. In the future, when the flow rate of the pipe with a diameter of 200mm increases, the water meter of the same diameter can be replaced.
When large-scale water users choose prepaid water meters, they can choose one large-diameter water meter or several small-diameter water meters to be used in parallel, so that individual faulty water meters can be repaired or replaced without affecting the normal water supply of users.
How to distinguish the size of the caliber? Each company has its own standards. For example, some companies say that the nominal diameter of 50 and above is a large-caliber water meter, and some companies think that the nominal diameter of 80 and above is a large-caliber water meter. In short, the standards are different. . In fact, I generally call smart prepaid water meters with a nominal diameter of 40 and above as large-caliber water meters. Because most of the product calibers like IC card prepaid water meters are small calibers, mostly 15mm, 20mm, 25mm, and 40mm nominal calibers are rarely used, so I generally call 40mm large calibers. Therefore, I don't think everyone needs to be so serious about the size of the caliber.
The following will tell you about the use environment of water meters of different calibers.
Small-diameter (15mm, 20mm, 25mm nominal diameter) water meters are generally used in public places such as homes, schools, factories, etc., in short, the water consumption will be relatively small. How to determine the size of the user's water meter? The main assessment is how much domestic water per person per capita is, and then calculate the total water consumption of a household every day, and then determine the size of the water meter with reference to the nominal flow of the water meter.
Large-diameter (I think 40mm and above nominal diameters are large-diameter water meters) water meters are generally used in the main pipeline or industrial use of water pipelines. Large-caliber water meters are hardly seen in residents' homes.
Finally, I will tell you about the installation methods of water meters of different calibers. Large-diameter water meters are generally connected by flanges. Small-diameter water meters mainly depend on the material of the water meter. Most of them are directly connected by threads. Nylon water meters can use other connection methods.