One of the most unpleasant household problems is the lack of water in the tap. It is easy to survive the absence of light or gas, but water is an indispensable component of human life, and when there is no or little, problems begin. You can keep several containers of water constantly in the house, for example, plastic bottles, but it is much more practical to determine which storage tank is needed for water supply and a system diagram for a private house, so as not to lose comfort and continue to use household appliances and a sink with a bathtub, as if nothing had happened.
If for some reason the pump does not work in the system autonomous water supply, or there is no pressure in the centralized city water supply system, then it can be fed into the sink or toilet cistern from a pre-recruited reserve tank. Simply put, it is better to always have a supply in the house. drinking water and use it in emergency situations.
For the convenience of using the reserve water supply, the storage tank must be integrated into the water supply system so that it is either automatically used in the absence of external pressure, or it can be activated by simply turning the valve.
There are many variations on how to install and connect a storage tank, depending on the type of water source, the possible location of the tank and even the layout of the house. It is enough to choose the appropriate option and decide on the type of the storage tank itself.
The storage tank can be a container with a sufficient internal volume, made of a material that is resistant to corrosion and safe for storing drinking water. The following materials are used:
Plastic tanks Although galvanized steel is corrosion resistant and waterproof, over time, the protective layer of zinc can become thinner, especially at the joints and welds.
By design, they are distinguished:
In the first case, everything is simple, the entire internal volume is filled with water and, if necessary, is drained through a pipe fixed at the lowest point.
In the case of membrane storage tanks, the useful volume is at least one third less than the volume of the entire structure. Part of the volume is diverted under the air chamber, separated from the water by a strong elastic membrane. As the container fills with water, the membrane presses on the air chamber, creating overpressure... When it is required to receive water back, the valve opens, and it enters the water supply system under the action of the accumulated pressure.
There are three connection options storage capacity and the use of the water supply:
How to determine the best option?
If a house has several floors and it is possible to locate a storage tank in the attic, then this will make it possible to do without additional installation of a pump, and there is no need to spend money on an expensive membrane tank. In fact, this is an analogue of a water tower. However, raise the container so high as to provide a comfortable head at the level of 2-2.5 atm. it's still difficult. Moreover, the question arises about the insulation of the tank, so that in winter period the water in it did not freeze.
In the event of an emergency shutdown of water, the available pressure is 0.2-0.3 atm. will be enough to use the mixer in the sink, toilet or even shower, but you will not be able to use some household appliances such as a washing machine or dishwasher, which require more pressure to operate the solenoid valves.
Installing the tank at a level with the consumer is suitable in cases where it is not possible to raise the tank to the attic or at least one floor higher. The same applies to the installation of a storage tank in an apartment. A small pump is required to supply water to the water supply under pressure. To ensure adequate operation, the pump will need a diaphragm expansion tank.
A storage tank with a membrane is perfect for storing a supply of water both when using a centralized water supply system and in autonomous system... However, it does not require additional equipment or top location. However, its cost is significantly higher than any conventional storage tank, even when combined with a simple pump.
In case of problems on the city water supply line and water cutoffs, usually renovation work are performed in a day or two. However, accidents happen on holidays and in places where quick repair is simply impossible, then you have to wait much longer. An optimal supply of water for 2-3 days will be based on using the toilet, maintaining personal hygiene and preparing food.
For a family of three, 100 liters per day is quite enough when using water in economy mode. One wash requires approximately 80 liters of water, more precisely, you can find out in the passport for the washing machine. Likewise for the dishwasher.
It turns out that for 2-3 days when using household appliances, you need to look for a storage tank with a volume of at least 500 liters, half a cubic meter.
However, there are a number of limitations:
The storage tanks of the membrane type are limited in their volume and are not able to give up the entire supply of the stored liquid. To form a stock of more than 300 liters, you will have to connect several tanks of smaller capacity in parallel to each other.
A water tank is installed on a prepared site: concrete base, tied with a foundation, or a reinforced metal frame made of a profiled pipe. The structure must withstand one and a half weight of the tank and water in it when fully filled.
The inlet pipe can be of any suitable diameter, the water is supplied under pressure. The outlet pipe and the pipe to the water supply are chosen with a diameter of one and a half to two times more than the section of the main line. The optimal size is 32 mm.
Even the highest quality insulation only slows down the temperature drop in the tank. To prevent water from freezing, when installing the tank in an unheated attic or on the roof, use any suitable heating system for pipes and the storage tank itself.
Any type of storage tank connection requires check valve at the entrance to a house or apartment. It is the valve that will prevent the stored water from flowing back into the pipeline, and not to the consumer.
The tank is installed under the ceiling of the first floor, on the floor above the bathroom and kitchen, or in the attic. The tank should have a nipple in the upper part for water supply, another slightly higher for discharge into the sewer in case of overflow and a nipple at the lowest part for water intake.
Already after the introduction of the coarse filter of the shut-off valve, meter and check valve, a tee is installed, from which the pipe goes to the inlet pipe of the tank, a shut-off valve or a controlled valve is installed in front of the connection.
A shut-off valve is connected to the outlet fitting and the pipe is lowered back to the water supply, with which it is connected through a tee.
The hose for dumping the surplus is lowered into the sewer or discharged outside the house into the front garden or drainage system.
To control the filling, a mechanical valve with a float is used, similar to those used in the toilet cistern.
To use the stored water, it is enough to open the outlet valve.
The connection is performed in the same way as in the first option. However, a pump must be installed at the outlet to create additional pressure in the water supply. Before each use of water, you will have to turn on the pump first.
Ready-made will help to simplify life pumping station or supplementing the pump with a membrane-type expansion tank and a pressure switch.
To connect the tank, only one pipe is used, connected to the water supply through a tee with a valve. The tie-in is carried out in the same way after the filter, meter and check valve.
The pressure in the air chamber must be adjusted before use. This must be done strictly in accordance with the instructions for the selected model. The normal pressure in the water supply system is preliminarily studied, moreover, taking into account fluctuations during the day. The average value is taken as a result, which is used to tune the tank. This is the only way to use the maximum useful volume of the tank.
As in the case of a centralized water supply, there are several connection options.
The storage tank is installed 15-20 meters above ground level in a fortified tower or attic. Water from borehole pump or a pumping station is fed directly into the tank, and from there it is distributed to the bathroom and to the kitchen in the house. The pressure in the system is provided by the height difference between the water level in the tank and the mixer tap in the house.
The disadvantage is the constant passage of water through the tank, which will cause sediment accumulation over time, even if a filter system is installed beforehand.
The advantage is in the simplicity of the design and the minimum of expensive elements, with the exception of the very structure of the tower and the obligatory insulation of the tank to protect it from freezing, even when it is placed in the attic.
The tank is installed flush with the pumping station or on the ground floor in the house. It fills up during routine work pump due to water from the well. The limiter is a float switch.
This option saves with excessive water consumption and a decrease in the water level in the well or well. However, it is useless when the electricity is turned off, since a pump is required to supply the end consumer with water from the supply.
A membrane tank for storing the water supply is installed after the pumping station and the check valve, with a bottom connection. If the pumping station for some reason does not work and does not maintain the pressure in the system, then water comes from the storage tank.
Purpose and scope
Technological pressure tanks BT (N) are intended for storage of a liquid working medium under pressure and its subsequent use in technological schemes energy enterprises, housing and communal services, food, oil, chemical industries, and other industries.
Technological pressure tanks BT (N) are made according to the strength calculation with a margin for corrosion from high-quality carbon or alloy steel with a thickness of 4 to 12 mm or stainless steel with a thickness of 3 to 10 mm.
General technical data of technological pressure tanks
Nominal volume (geometric capacity): from 100 l (0.1 m 3) to 32000 liters (32 m 3).Material execution of technological pressure tanks
| Material performance index | Material structural elements tank | Estimated service life, years * | |||
| branch pipes | frame | flanges | supports | ||
| M1 | St20 | St20 | St20 | St3, St20 | 10-15 |
| M2 | St20, 09G2S | 09G2S | St20 | St3, St20 | 15-20 |
| M3 | AISI 304, 12Х18Н10Т |
AISI 304, 12Х18Н9Т, 12X15G9ND |
St20, 12Х18Н9Т |
St3, St20 | 30-40 |
* Depending on the thickness of the tank and the corrosion margin (corrosiveness of the working medium).
VERTICAL HEADER TECHNOLOGY TANKS
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The vertical pressure head technological tank BT (N) is a single-walled or double-walled welded structure, consisting of a cylindrical shell, upper and lower conical, torispherical or elliptical bottoms, working medium inlet and outlet nozzles, safety valve fittings, drainage, and other nozzles as specified by the Consumer ( design organization). The tank has three (four) vertical legs or legs.
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Depending on the purpose of the tank and the conditions of its operation, as directed by the Consumer (design organization), the following can be installed in the tank:
The lineup vertical pressure head process tanks for design pressure
0.6 MPa g (6 kgf / cm 2) and 1.0 MPa g (10 kgf / cm 2)
| Modification | Volume, m3 | Diameter, D, mm | Height, H, mm | Height with supports, H1, mm | |
Weight for design pressure |
TO ORDER * |
BT (N) -0.1-0.6-V |
0,10 | 425 | 800 | 1000 | 74/62 | 80/68 | |
BT (N) -0.125-0.6-B |
0,125 | 425 | 950 | 1150 | 83/69 | 90/76 | |
BT (N) -0.16-0.6-B |
0,16 | 530 | 850 | 1050 | 96/80 | 102/85 | |
BT (N) -0.2-0.6-V |
0,20 | 530 | 1000 | 1200 | 105/86 | 114/95 | |
BT (N) -0.25-0.6-V |
0,25 | 630 | 900 | 1100 | 123/100 | 130/108 | |
BT (N) -0.32-0.6-B |
0,32 | 630 | 1150 | 1350 | 140/110 | 150/125 | |
BT (N) -0.4-0.6-V |
0,40 | 630 | 1400 | 1600 | 155/125 | 170/140 | |
BT (N) -0.5-0.6-V |
0,50 | 700 | 1450 | 1700 | 205/165 | 230/190 | |
BT (N) -0.63-0.6-V |
0,63 | 700 | 1750 | 2000 | 230/185 | 260/215 | |
BT (N) -0.8-0.6-B |
0,80 | 800 | 1750 | 2000 | 260/210 | 290/240 | |
BT (N) -1-0.6-V |
1,0 | 800 | 2150 | 2400 | 290/230 | 330/270 | |
BT (N) -1.25-0.6-V |
1,25 | 900 | 2150 | 2400 | 370/305 | 415/345 | |
BT (N) -1.6-0.6-V |
1,6 | 1000 | 2200 | 2450 | 425/340 | 470/390 | |
BT (N) -2-0.6-V |
2,0 | 1100 | 2300 | 2550 | 490/395 | 540/445 | |
BT (N) -2.5-0.6-V |
2,5 | 1200 | 2400 | 2650 | 550/440 | 610/505 | |
BT (N) -3.2-0.6-V |
3,2 | 1300 | 2650 | 2900 | 640/515 | 840/645 | |
BT (N) -4-0.6-V |
4,0 | 1400 | 2850 | 3150 | 885/740 | 1040/820 | |
BT (N) -5-0.6-V |
5,0 | 1500 | 3100 | 3400 | 1020/850 | 1195/940 | |
BT (N) -6.3-0.6-V |
6,3 | 1600 | 3400 | 3700 | 1205/1005 | 1415/1110 | |
BT (N) -8-0.6-V |
8,0 | 1700 | 3800 | 4100 | 1395/1165 | 1650/1290 | |
BT (N) -10-0.6-V |
10 | 1800 | 4250 | 4550 | 1605/1335 | 1905/1485 | |
BT (N) -12.5-0.6-V |
12,5 | 1900 | 4750 | 5050 | 1860/1550 | 2215/1730 | |
BT (N) -16-0.6-V |
16 | 2000 | 5450 | 5750 | 2765/2180 | 3210/2625 | |
BT (N) -20-0.6-V |
20 | 2200 | 5650 | 5950 | 3190/2525 | 3690/3020 | |
BT (N) -25-0.6-V |
25 | 2400 | 5950 | 6250 | 3665/2895 | 4230/2460 | |
BT (N) -32-0.6-V |
32 | 2500 | 6950 | 7250 | 4445/3520 | 5150/4225 |
* When you click on the "Order" button, a request will be generated to issue an invoice or commercial proposal to the selected tank.
Examples of designation of vertical pressure head process tanks when ordering
Vertical technological pressure tank BT (N) -10-0.6-V-M2 TU 3600-003-95210823-2015
BT (N) - abbreviated tank marking;
10 - nominal volume, m 3;
0.6 - working pressure, MPa;
B - vertical;
М2 - material performance index.
HORIZONTAL HEADER TECHNOLOGY TANKS
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The horizontal pressure tank BT (N) is a welded structure consisting of a cylindrical shell, right and left conical, torispherical or elliptical bottoms, working medium inlet and outlet nozzles, safety valve fittings, drainage, and other nozzles as directed by the Consumer (design organization). The tank has two horizontal saddles or cradles (for underground installation).
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Depending on the purpose of the tank and the conditions of its operation, as directed by the Consumer (design organization), the following can be installed in the tank:
Type, location, number and diameters of fittings and branch pipes - according to the sketch or instructions of the Consumer (design organization) in
Model range of horizontal pressure head process tanks for design pressure
0.6 MPa g (6 kgf / cm 2) and 1.0 MPa g (10 kgf / cm 2)
| Modification | Volume, m3 | Diameter, D, mm | Length, L, mm | Height with supports, H1, mm | Weight for design pressure 0.6 MPa: version М1 (М2) / М3, kg |
Weight for design pressure 1.0 MPa: version М1 (М2) / М3, kg |
TO ORDER * |
BT (N) -0.1-0.6-G |
0,10 | 425 | 800 | 625 | 82/70 | 87/75 | |
BT (N) -0.125-0.6-G |
0,125 | 425 | 950 | 625 | 93/78 | 100/86 | |
BT (N) -0.16-0.6-G |
0,16 | 530 | 850 | 730 | 109/92 | 116/99 | |
BT (N) -0.2-0.6-G |
0,20 | 530 | 1000 | 730 | 125/107 | 135/116 | |
BT (N) -0.25-0.6-G |
0,25 | 630 | 900 | 830 | 150/128 | 160/135 | |
BT (N) -0.32-0.6-G |
0,32 | 630 | 1150 | 830 | 165/140 | 175/150 | |
BT (N) -0.4-0.6-G |
0,40 | 630 | 1400 | 830 | 187/155 | 205/170 | |
BT (N) -0.5-0.6-G |
0,50 | 700 | 1450 | 900 | 225/185 | 250/210 | |
BT (N) -0.63-0.6-G |
0,63 | 700 | 1750 | 900 | 260/215 | 290/345 | |
BT (N) -0.8-0.6-G |
0,80 | 800 | 1750 | 1000 | 290/240 | 320/270 | |
BT (N) -1-0.6-G |
1,0 | 800 | 2150 | 1000 | 395/330 | 432/370 | |
Cold and hot water plays a big role in everyone's life modern man... It is hard to imagine that a city dweller could do without a hot shower or hot water for washing dishes. To ensure a constant supply of water to the taps of private houses for domestic use, it is recommended to equip water supply systems. For this the best option will buy a membrane tank for water supply.
The tank in question, as well as the accumulator, can be used not only to accumulate excess water during the heating process. Thanks to them, it is possible to maintain the pressure in the system, as well as to protect and protect against potential damage. If you decide to buy a hydraulic tank and install it, you can immediately experience its benefits. Water is supplied up to the end, it works in a well-organized manner, and the moisture that has accumulated allows the pump to be turned on and off much less often. Consequently, such equipment is worn out much less. Buying hydraulic accumulators will also be the right decision, as an attachment to the hydraulic tank. The tanks can be used in systems where hot and cold water in houses, in those systems that are responsible for heating, for warm floors. In addition to household use, there are also more voluminous tanks, they are often installed in cleaning systems, as well as where there are devices for extinguishing fires.
To buy an expansion tank for water supply in Moscow will be the right decision, since it is convenient to install it, it is simple in terms of design, and is easy to customize.
When water heats up, it does not come into contact with air, therefore, it stays hot longer. Due to the tightness of the entire tank, hot water loses heat to a minimum. It also saves on energy resources. It is easy to buy accumulators in Moscow, you just need to choose the right store for this. Choosing a tank to serve clean water for drinking, it is necessary to clarify what material the inner membrane consists of. Water will come into contact with it. This is explained by direct contact. Installation and installation of the tank is convenient, you can always install it on the floor, hang it on the wall, or choose a flat version.
It is possible to buy a hydraulic accumulator for water supply systems in a store. There is a wide assortment here that will allow you to choose what you need, and their cost plays an important role here. Hydroaccumulators are very affordable in Moscow. If necessary, get advice from experienced managers who know the assortment both in theory and in practice. It is profitable to buy hydroaccumulators for water supply in Moscow in a store where they provide the most profitable terms for every client that contacted here. The goods are of the highest quality, the prices are reasonable, any questions can be asked by phone or simply leave a request on the resource. You will be contacted as soon as possible and help you make a choice if you are not sure yet.
A pressure tank (accumulator) is an auxiliary device in an autonomous hot and cold water supply system. Nevertheless, it is not worth saving on its installation. It will save the pumps from rapid wear, and in addition, it will help to get rid of a number of problems in the operation of the system.
The accumulator & nbsp is an important element of a closed water supply system of a country house.
How to choose the volume of the accumulator? The volume of the head tank should be at least one quarter of the maximum total water consumption in the house per minute. In this case, he will be able to supply water simultaneously to all the water points in the building for at least 15 seconds without turning on the pump. What can be done during this time? For example, rinsing your hands or washing a cup. However, we recall that we are talking about the maximum pressure of water pouring from all taps at once. If you open only half of them or halve the intensity of the jet, then the time interval will increase to 30 seconds. Thus, the water supply may well be enough in order not only to thoroughly wash your hands, but also to wash the dishes without turning on the pump.
V closed systems water supply. In such systems, there are booster circulation pumps and a hydraulic accumulator (also called a pressure tank), which will help to avoid a number of problems associated with their use. First of all, it is needed to maintain normal pressure in the system when the pump is off. In addition, the accumulator or pressure tank contains a certain amount of water.
V open system no water supply pressure tank is needed. The open system is used in small country houses: it is based on a water reservoir installed on an elevation.
The device of the accumulator is not complicated. It consists of a sealed metal case with a rubber membrane inside. She reminds balloon but only much more durable. The space between the body walls and the diaphragm is normally filled with a harmless inert gas. The tank is mounted on the pipeline and connected to it using a flange connection.
Internal organization hydroaccumulator (pressure tank).
The elasticity of the membrane and the gas resistance are used. Water, getting inside the diaphragm of the head tank, under the influence of pressure in the pipes, stretches it. The gas in the space between the membrane and the body is compressed and pushes the water into the line. Thus, the accumulator maintains the required pressure level in the water supply line.
Volume and cost devices are rigidly interconnected. The larger the tank capacity, the higher its price. In mid-2010, the picture was as follows: the smallest hydroaccumulator with a volume of 5 liters cost from about 1,500 rubles, a tank for 25 liters - about 3800 rubles, and for 100-500 liters - from 10 thousand rubles.
The article uses images from rusklimat.ru, reflex.de, zilmet.com
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Modern drainage systems with a drain to the floor are convenient and technologically advanced. With their help, you can beautifully and safely fit the shower into the bathroom space.
Modern bathrooms are increasingly equipped with hanging fixtures. You cannot install it otherwise than using the installation system. Let's talk about the nuances of choosing a flush-mounted system.
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