The expediency of using this meter in everyday life is proved by practice. Those who have already supplied water meters can confirm that the amount of payment for water supply has decreased 3 to 3.5 times. Given the low cost of water meters, the costs of their purchase and installation pay off fairly quickly.
By the way, the primary installation of such a device is made by the forces of the Criminal Code for free. If her representative starts talking about paying for the service, then this is a clear violation of the law. This is immediately reminded of such a rebel communal.
Before you deal with the purchase of the device, you should find out, and from what and how, in fact, to choose water meters? Is there any difference between the commercially available models? We will not stop on the construction of the existing ones and the principle of their functioning - this is of little interest to anyone( and understandably).Let us consider only the features of the instruments and how they affect their practical application.
Classification of
counters By resource type
All models are designed to be installed in a specific "thread".Some are for HWS systems only, others are for WAN.More details about the installation we wrote here.
What to take into account: devices for hot water can be installed on pipes with cold, as they operate at temperatures up to 130 ° C.But it is impossible to put models for HVS on DHW - they will not withstand more than 40 ° C.
power supply There are devices that are connected to the mains. Of course, such models come with various additional functions, they are more convenient and perfect. But are they suitable for our conditions? And it's not just a matter of constant problems with supply, especially in rural areas, and even in winter. The quality of the voltage is one more reason that makes you think twice before spending money on such models.
On the realized engineering solution
There are several types of counters. For household use, you must select the tachometric model .More simple and cheap - single-jet or multi-jet. To calculate the flow rate, a more complex device( for example, a valve) is not rational to install.
What to take into account:
- if the water quality in the pipeline is poor, then a multi-jet counter should be chosen;
- devices with impeller are mounted on "threads" with a diameter of no more than 40 mm. For larger pipes, turbine models should be purchased;
- with a significant and regular differential pressure is the best option - a combined counter( turbine + impeller).
What to look for
The first is for the interannual period .All the rest is afterwards. Any instrument is mandatory to be periodically checked for compliance with the accuracy of its measurements at a given moment in time to the parameters declared by the manufacturer. And this is understandable, as any mechanism gradually wears out. The information about the interim deadline is necessarily displayed in the technical documentation on the counter - in the table or the text of the passport, instructions, manuals. And the more it is, the better.
The second - on the date of manufacture .It is clear that the device is not food. But the FIRST verification for the accuracy of measurements it takes place at the manufacturer. It is from this date( the corresponding mark is in the passport) and the countdown to the next control of the parameters begins. And if the counter for some reason for a long time lay somewhere in the warehouses? And time passed.
Those who neglect this often have to check the product for the next year. And what is it? It is necessary to call a fitter - to cut off water - to dismantle the device. But water is needed every day. Therefore, instead of this counter, you must temporarily place either a device called a "simulator" or a rejected device. Who in the house has something similar and he can do without the services of the representative of the Criminal Code?
Next - to take your own to the CSA in the test, and there, as always, turn. And after receiving the certificate and the product from the verification - all in reverse order. If to add to this, that in the time interval between dismantling and re-installation of the "own" meter, the payment for water consumption will be charged according to the standard, and the specialist's services will also have to be paid, then such indicator as the date of manufacture of the device requires the closest attention.
If the counter meets the first two criteria, then it is necessary to pay attention to such parameters:
- installation dimensions. Perhaps, if the diameters of the flanges and the pipe do not coincide, they will additionally purchase adapters;
- maximum system pressure;
- availability of quality certificate.
All other parameters to the layman practically will not say anything.
Professional tips
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Before you can check the counter, you need to take a calculator in your hands and count all scrupulously. The cost of the device is known. It remains to determine how much all the money( not to mention the time), taking into account all of the above, will have to be spent on verification. However, few people take into account that it will have to be dealt with annually, since even under the control of those / conditions at the manufacturing plant, the period of suitability( under the act) is no more than 1 year. Consequently, after 12 months - everything is again "in a circle".
Practice shows that the simplest models of water meters do not make sense. It is much cheaper( taking into account all the hassle and expense) to purchase a new device and, having called a locksmith, make a replacement with the drawing up of an appropriate act. And then forget about this problem for a few years. Given that the price of such models ( for example, "Betar") lies in the range of 700 to 2,500 rubles , the savings are obvious.
- In order for the meter to work for the entire stated life, it is necessary to install a water filter in front of it on the pipe.
