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In modern heating systems and water supply systems, special membrane-type expansion water tanks are installed as protection equipment. Often such membrane tanks are called pressure tanks, and sometimes even “hydropneumatic tanks” and “hydraulic accumulators”. In the water supply system they are called upon to perform three important functions.

The main function of membrane tanks is obvious - it is a reservation, or accumulation water resource, as well as maintaining water pressure in the pipes. Pressure tank in in this case is a reserve tank that accumulates water reserves. When the tap is turned on and water collection begins, the pressure of water entering the system comes from precisely such a tank. When the water reserves in the “hydraulic accumulator” decrease and the pressure level inside the pipes drops below the permissible limit, the pump starts. Further, if the tap is turned off, the pump does not stop working, but continues to pump water into the membrane tank. Over time, the tank is completely filled, the upper limit of the pressure in it is reached, and the automation turns off the pump. It is logical that the use of a membrane tank increases the service life of not only the pump, but also the entire system as a whole. And all because in its absence and the high frequency of turning on/off the taps of the water system, the pump would have to constantly switch from one state to another.

Second important function tanks is to prevent water hammer. Water hammer is a pressure surge in the system when the energy of movement of an abruptly stopped water flow in a pipeline turns into energy that destroys the walls of the pipeline. The likelihood of water hammer is high when the tap is suddenly closed. Such a shock is no less likely when turning off various household appliances. electrical appliances, such as, for example, washing machine. "Hydraulic accumulator". In this case, it does not allow sudden changes in pressure and plays the role of a muffler for such impacts.

Well, the third function is, of course, creating a supply of water in case of any incident: be it a temporary shutdown of the pumping station, or something similar. With a membrane tank, there will always be a spare container of water in the house.

It is necessary to distinguish between membrane tanks for water supply and heating systems, although outwardly they are very similar to each other. In most cases, they look like spherical metal vessels. Unlike a pressure tank, the main function of a membrane tank for a heating system is to reserve excess water resulting from its thermal expansion for subsequent return to the system. Like pressure tanks, they act as a damper for water hammer in the system. Both types of tanks have a special elastic membrane inside made of heat-resistant rubber. This membrane divides the vessel into two parts (for air and for liquid) and is capable of stretching, which allows the system to be in an equilibrium state under pressure changes. Our team will help you choose the right tank for the system.

Cold and hot water plays a big role in everyone's life modern man. It’s hard to imagine that a city resident could do without a hot shower or hot water for dish washing. To ensure a constant supply of water to the taps of private houses for household use It is recommended to equip water supply systems. For this the best option will buy a membrane tank for water supply.

Where can the structure be used for water supply?

The tank in question, as well as the hydraulic accumulator, can be used not only to accumulate excess water during the heating process. Thanks to them, you can maintain pressure in the system, as well as protect and protect against potential damage. If you decide to buy a hydraulic tank and install it, you can immediately feel its benefits. Water is supplied right up to the end, it works in a well-functioning manner, and the moisture that has accumulated allows you to turn the pump on and off much less often. Consequently, such equipment wears out much less. It will also be possible to buy hydraulic accumulators the right decision, as an application to a hydraulic tank. Tanks can be used in systems where hot and cold water in houses, in those systems that are responsible for heating, for heated floors. In addition to domestic use, there are also larger tanks; they are often installed in cleaning systems, as well as where there are devices for extinguishing fires.

The main advantages of water supply tanks

Buying an expansion tank for water supply in Moscow will be the right decision, since it is convenient to install, it is simple in design, and easy to configure.

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 in minimal quantities. This also allows you to save on energy resources. It’s easy to buy hydraulic accumulators in Moscow, you just need to choose the right store for this. Choosing a tank to serve clean water for drinking, you need to clarify what material the inner membrane is made 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 option.

You can buy a hydraulic accumulator for water supply systems in a store. There is a wide range here that will allow you to choose what you need, and their cost plays an important role here. Hydraulic accumulators are very affordable in Moscow. If necessary, get advice from experienced managers who know the range both in theory and in practice. It is profitable to buy hydraulic accumulators for water supply in Moscow in a store where they provide the most profitable terms for every client who came here. The product itself High Quality, prices are reasonable, any questions can be asked by phone or simply leave a request on the resource. You will be contacted at as soon as possible and will help you make a choice if you are not yet sure.

Today we have to study the regulating tanks in the water supply system. We will find out what they can be and what functions they perform. In addition, we will get acquainted with a number of popular water supply schemes with various types of containers.

First meeting

Our list includes:

Image	Description
	Non-pressure storage tanks. Their characteristics- large internal volume and absence overpressure. Water is supplied to the consumer by gravity or pump.
	Heat accumulators and boilers. Their function is to create a hot water reserve to ensure peak consumption. Tank volume varies from 10 to 3000 liters; this class of devices can heat water independently or use external source heat.
Attention: the pumping station can lift water from a depth of no more than 8-9 meters. The limitation is due to physical constants: the maximum theoretically possible pressure difference for a surface pump at the ends of the suction pipe of 1 atmosphere is capable of raising the water column by only 10.3 meters. What are the advantages of a pumping station over a submersible pump? In simple maintenance. Climb well pump- a rather complex operation that can be hampered by wellbore deformation or cable breakage; In mobility. Surface pump can be taken away from the dacha for the winter; Cheap. Pumping station with comparable performance it will cost 2-3 times less than a set of a well pump with a hydraulic accumulator. Water hammer damper The water hammer damper can be mounted: At the water supply inlet with sequential connection of water supply points; Directly in front of the plumbing fixture. In this case, it protects the device itself and its flexible connections from pressure surges; On the collector beam distribution water supply Conclusion As you can see, the most common names are often combined under a common name. different types sanitary fittings. The video in this article will help you learn more about where and how regulating tanks are used for water supply. Good luck!

Purpose and scope

Technological pressure tanks of the BT(N) brand are designed for storing liquid working environment under pressure and its subsequent use in technological schemes energy, housing and communal services, food, oil, chemical industry, other industries.

Technological pressure tanks BT(N) are manufactured based on strength with a margin for corrosion from high-quality carbon or alloy steel with a thickness of 4 to 12 mm or of stainless steel thickness from 3 to 10 mm.

General technical data of process pressure tanks

Nominal volume (geometric capacity): from 100 liters (0.1 m 3) to 32,000 liters (32 m 3).
A number of conditional (nominal) pressures, MPa g: 0,1; 0,16; 0,25; 0,3; 0,4; 0,6; 0,8; 1,0; 1,25; 1,6; 2,0; 2,5.
Working environment temperature: from 0 to plus 200 °C.
Working environment: water, aqueous solutions, chemical reagents, other liquid media.
Climatic version according to GOST 15150: UHL 3.
Storage and transportation conditions according to GOST 15150: 5(0Zh4).
Permissible seismicity on the MSK-64 scale: 7 points (as directed by the Consumer or design organization - up to 9 points).

Material design of technological pressure tanks

Material performance index	Material structural elements tank				Estimated period service, years*
	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 reserve (corrosiveness of the working environment).

VERTICAL PRESSURE TECHNOLOGICAL TANK

The vertical pressure process tank BT(N) is a single-wall or double-wall welded structure consisting of a cylindrical shell, upper and lower conical, torispherical or elliptical bottoms, inlet and outlet pipes for the working medium, fittings safety valve, drainage, other pipes as directed by the Consumer (design organization). The tank has three (four) vertical supports or legs.

Depending on the purpose of the tank and its operating conditions, at the direction of the Consumer (design organization), the following can be installed in the tank:

• service hatch;
• breathing pipe (air vent);
• equalization line fitting;
• recirculation pipe;
• instrumentation fittings;
• other fittings and pipes.

The lineup vertical pressure process tanks on 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	ORDER *
BT(N)-0.1-0.6-V	0,10	425	800	1000	74/62	80/68
BT(N)-0.125-0.6-V	0,125	425	950	1150	83/69	90/76
BT(N)-0.16-0.6-V	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-V	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-V	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 for an invoice or commercial offer for the selected tank.

Examples of designation of vertical pressure process tanks when ordering

Process vertical pressure tank BT(N)-10-0.6-V-M2 TU 3600-003-95210823-2015

BT(N) – abbreviated tank marking;
10 – nominal volume, m3;
0.6 – working pressure, MPa;
B – vertical;
M2 – index of material performance.

HORIZONTAL PRESSURE TECHNOLOGICAL TANK

The horizontal pressure tank BT(N) is a welded structure consisting of a cylindrical shell, right and left conical, torispherical or elliptical bottoms, inlet and outlet pipes for the working medium, safety valve fittings, drainage, and other pipes as specified by the Consumer (design organization). The tank has two saddle horizontal supports or supports (for underground installation).

Depending on the purpose of the tank and its operating conditions, at the direction of the Consumer (design organization), the following can be installed in the tank:

• level indicator device (quartz tube);
• service hatch;
• additional pipes for inlet (outlet) of the working medium;
• equalization line fitting;
• recirculation pipe;
• instrumentation fittings;
• measuring pipe;
• internal or external heat exchanger (coil) for additional heating (cooling) of the working environment;
• shirt (double-wall version);
• other fittings and pipes.

Type, location, number and diameters of fittings and pipes - according to the sketch or instructions of the Consumer (design organization) in

Model range of horizontal pressure 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 M1(M2)/M3, kg	Weight for design pressure 1.0 MPa: version M1(M2)/M3, kg	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