Water is an invaluable resource that is vitalnecessary for every living organism. But it is a product for which the owner must pay - the state. In Russia, water meters are installed to account for water consumption. And the right to choose the device remains with the owner of the home. This gave rise to a huge range of products, in connection with which each of us at least once in our life had a question: which water meter is better? Understand this will help our article.
Togo is required by law
Previously, the tenants themselves chose how to pay forconsumed water - according to the norms established by the legislation or focusing on the readings of the water consumption meter. But with the entry into force of the Federal Law of November 23, 2009 No. 261-ФЗ “On Energy Saving and Energy Efficiency Improvement and Amendments to Certain Legislative Acts of the Russian Federation”, the installation of water meters has become a mandatory procedure for all citizens of the country. At the same time, the law does not regulate what kind of recording device should be installed.
Evade from this duty can onlyhomeowners, which are officially recognized as dilapidated, or where communications are badly worn out and need to be replaced. In addition, all apartment owners are freed from it, where the installation of a cold water meter (or hot) is impossible due to the design features of the water supply system. In this case, this fact must be proved and documented in the housing and utilities sector.
Types and types of water meters
Счетчики учета расхода воды классифицируются по multiple featured. According to the purpose, they are divided into industrial and domestic subspecies. We will not dwell on the first variety, but the second type of devices requires more detailed consideration.
Household appliances can be divided into two groups:
- “Wet” accountants in which the recording device is directly connected to the impeller or turbine, rotated by the flow of water.
- "Dry" water meters, the design of which has two separate sections for indicators of water consumption and recording devices.
Solving the question "which water meter is better", one cannot ignore the device of the recording device. It, in turn, depends on the group of the device and has its own distinctive properties.
Mechanical or tachometer instruments
Mechanical accountants can be installed forregistration of both cold and hot water. The fundamental differences between devices adapted to work in a certain temperature range, we consider a little later. Now we study their design and principle of operation.
Tachometer water meters can belong to“Dry” and “wet” group. The first representative is Valtec. A water meter of this type records the readings by rotating the turbine located in the nozzle. The top of the impeller has a magnet that attracts the metal plate of the recorder and causes it to rotate. Such water meters are reliably protected from leaks and have high durability.
In "wet" devices the turbine is rigidly connected withtachometer It is rotated by the flow of water, transmits the force to the system of stars, which determine the speed of rotation of the dial. The advantages of such water meters include a simple design, and the disadvantages are the high risk of clogging of the water supply system.
Electromagnetic water meters
To say exactly which water meter is better -electromagnetic or mechanical - it is impossible. It all depends on the characteristics of the watercourse and the structural design of the water supply system. So, electromagnetic devices, among other things, require a constant connection to the mains, but, unlike tachometric devices, they provide more accurate readings.
The principle of operation of such water meters is based onelectromagnetic induction law. The impeller, rotating, creates an electromagnetic field, and the higher the flow velocity (the greater the water flow), the faster the induction field rotates. The device displays indications on the LCD display that simplifies their reading.
Differences counters for hot and cold water
The principle of operation of accountants hot and coldwater is the same. Both types of devices can be both mechanical and electromagnetic. But the SGB water meter (for hot pipeline) has some design features:
- It is made of heat-resistant materials that have a low coefficient of linear expansion. This prevents leakage when the device is heated.
- In its design, it has special reinforced gaskets, which also prevent leakage.
Meters of cold water are marked with the letter “X”, hot - “G”. It is not recommended to change them in places, that is, to install CXW on the hot water pipeline and vice versa.
What else to consider when choosing a counter?
Choosing which water meter is better is impossible.forget about the compliance of the inlet of the device with the diameter of the pipeline. Not taking into account this fact, you will have to either use the transition pipes or completely abandon the installation of the purchased device.
The second important factor is the materialmanufacturing. The main ones are copper and brass. The use of other metals and alloys is not recommended, because they emit harmful substances into the water. Moreover, it is better if the meter has a natural color, and is not covered with paint.
Do not pay attention to how much the counter costs.on the water, it is impossible. Mechanical devices have a lower price compared to electromagnetic, but their accuracy is much lower. In turn, tachometric water meters are more durable and easy to operate. The specific cost of the device depends on the brand of the manufacturer.
Water meter manufacturers
High-quality appliances to the domestic marketsupplied by Valtec. The Italian-made water meter is reliable and durable; it can be mechanical and electromagnetic. Most models are equipped with a pulse device for remote reading.
Excellent proven and water meterscompany Zenner, whose representation is located in more than forty countries around the world. Among other popular foreign manufacturers, Viterra, Siemens, Wehrle are worth noting.
Among the devices of domestic production canselect counters "Betar". Mostly due to their price. The average cost of devices is in the range of 500-1100 rubles, which, combined with acceptable durability, makes them profitable.
Among other domestic manufacturers canto mark the company Meter and the enterprises of the Mytishchi heating network. Their devices are high quality, reliable and accurate. They are adapted for different pipe diameters. In addition, their products can not pay attention to how much the meter on the water. The average price for the device is in the range of 500-900 rubles.
