Expansion tank for heating system: description, device, types and reviews

Many heating systems involve the use of expansion tanks. These elements are necessary to ensure that excess water flows there. Calculation of the expansion tank of the heating system takes into account the capacity of the boiler, as well as the volume of the coolant.

The main parameters of the modifications include the size of the nozzles, as well as the limiting pressure. In order to understand the issue in more detail, it is necessary to familiarize yourself with the tank arrangement.

Expansion tank construction

The standard expansion tank includes a safety valve, a diaphragm, and a safety valve. The outlet of cold water, as a rule, is in the upper part of the structure. Many models use an air chamber to stabilize the pressure in the housing. Connection to the heating system is via the inlet pipe. A safety valve is normally used with a stop.

What kinds are there?

To date, isolated cameras open and closed type. Also there are devices with protective fittings. Modifications of the open type are made with one or more membranes. The air chambers are quite large. Many modifications can boast a high heat transfer parameter. Devices of closed type are available in different sizes. Models with dual fuses on the market are rare.

For gas boilers, modifications of the closed type are suitable. Circulating pumps can be used for 5 kW. Cranes in devices are of a coupling type. Tanks with choke mechanism are more suitable for powerful electric boilers. Installed devices behind the mixers. Modifications with the holders are rare. It is an average expansion tank for a heating system of 2300 rubles.

Extrol series models

The specified expansion tank can only be installed with a radiator. If you trust the reviews of experts and buyers, then the model uses a good membrane. The valve is provided with an overlay. Also it is worth noting that the model is available in different colors. The air chamber is of small size. For gas boilers, the modification is not bad. A qualitative inlet pipe for cold water deserves special attention.

The connection is provided with a screw type, and the stand is made entirely of their stainless steel. The drain valve is not very wide. The lining of the nozzle is very rarely erased. The fuse itself is designed for a pressure of 4 Pa. If you trust the reviews of experts, the coolant passes into the camera without problems. There is a specified expansion tank for a closed heating system in the vicinity of 2200 rubles.

Reviews about modifications of Sprut VT2

Modification of this series of reviews mostly gets good. The expansion tank is installed in the heating system through the outlet pipe. The safety valve in the model is mounted in the upper part of the structure. For gas boilers, the modification fits perfectly. The valve is capable of withstanding heavy loads. The air chamber is of small size.

If you trust the reviews of experts, then install the model through the radiator is not recommended. The thermometer should be mounted behind the boiler at a distance of 0.5 meters. In some cases, a circulating pump can be used. Pick it up follows a little power. The price of this type of expansion tank varies around 2400 rubles.

Opinions about Sprut VT3 tanks

The volume of the expansion tank for the heating system is 7 liters. The water chamber is provided with a protective coating. If you trust the reviews of experts and customers, the valve is of high quality. It is also worth noting that the model uses an output of 2.1 cm. The flow restrictor is not available in this case. The limiting pressure in the air chamber reaches 5 Pa. Installed devices often behind the radiator.

The system of protection against overheating of the valve in this case is. The valve for filling the system is threaded. For wood-fired boilers, the modification fits perfectly. The switch is not in the device. The nozzle of cold water is set to a low pressure. Problems with the supply of coolant are very rare. Circulating pumps are recommended to use low power. The price for this expansion tank starts from 1800 rubles.

Aquasystem VRP 6 Series

This expansion tank for an open heating system is very popular. Most often it is purchased for gas boilers. The valve protection system is of the second class. It is also worth noting that the model uses a valve with a threaded lining. The pump can be installed directly behind the mixer.

Problems with excessive pressure are very rare. The fuse for the modification is used with a limiter. The outlet port of cold water is designed for high pressure. If you trust the experts' opinions, this type of tank is not afraid of corrosion. Radiators are recommended to use a small size. Circulating pumps are often used for 3 kW. In stores, the said tank of the expansion type is sold at a price of 2200 rubles.

Feedback on the modifications of Aquasystem VRP 10

This tank is suitable for heating boilers of low power. The indicator of overheating is low. It is also worth noting that the model uses a clamping type valve. Limit overload valve can withstand at 5 N. If you trust the reviews of buyers and experts, then the cover is damaged rarely.

Problems with the fuse are rare. It is recommended to install the model behind the radiator grille. The thermometer in this case is allowed to be used. The limiter of this type of expansion tank is not available. The circulation pump itself is often used for 3 kW. For a small heating system this is quite enough. The valve for filling in the modification is installed on the rack. The price for this tank fluctuates around 2300 rubles.

Opinions about Aquasystem VRP 12 tanks

The specified expansion tank for the heating system is designed for 5 liters of coolant. If you trust the reviews of experts, then the sleeve is of high quality. Directly the valve is used with a clamping mechanism. The circulation pump is allowed to use a small power. The minimum system pressure is maintained at 3 Pa.

Also worth noting is that the device uses a protective layer. The air chamber is provided by the manufacturer in a small size. The flow restrictor in this case is of the rack type. The fuse is installed in the air chamber. The filling of the tank with a coolant is very quick. The membrane of the model is applied thin and is not deformed infrequently. It is worth mentioning the tank of the expansion type in the area of 2600 rubles.

Models of the Zilmet series OEM-Pro

This tank is an expansion tank for heating reviews, as a rule, gets positive. Many buyers praise him for a solid body. Also, the device uses a good fuse. The membrane at the tank is used only one. If you trust the experts, then it is erased slowly. It is recommended to install the model behind the radiator grille.

Also it is worth noting that the modification is not afraid of high temperature. Maximum 10 liters of coolant are allowed. The air chamber is of small volume. The output valve in the device is designed for heavy loads. The limit value is not less than 2 Pa. The thermostat is recommended to be connected behind the counter above the mixer. For gas boilers, the modification is suitable. The price for it fluctuates around 1,700 rubles.

Feedback on modifications Reflex NG 8

These membrane expansion tanks for heating systems are designed for high pressure. If you trust the customers, then you can install the model on small stops. It is also worth noting that the modification uses a wide membrane. The air chamber is provided by the manufacturer with a protective layer of corrosion. If you trust the customers, then for electric boilers the device fits perfectly. The flow limiter of the modification is of high quality. The thermostat is most often installed near the boiler.

The filling valve is mounted on a wide lining. Many people choose this type of expansion tank for a quality branch pipe. The inlet valve is capable of withstanding a pressure of 5 Pa. The system for protection against membrane overheating is absent in the model. It is worth this tank is extensive for a heating system of about 1800 rubles.

Feedback on Reflex NG 10 tanks

This expansion tank is suitable for boilers of different capacities. The water chamber at it is calculated on 8 liters of the heat-carrier. If you trust the customers, then you can install the model near the boiler. The pressure gauge is most often connected near the counter. The clamping valve of the presented modification, unfortunately, is absent. It is also worth noting that the model has problems with membrane overheating. The inlet valve is designed for a pressure of 3 Pa.

The flow restrictor is of small size. The fuse is installed in the lower part of the structure. Circulating pumps are mounted in high power. For gas boilers, this expansion tank is not bad. The linings are capable of withstanding heavy loads. This tank is worth an expansive for the heating system in our time about 1900 rubles.

Reflex NG 15 series tanks

This type of expansion tank is produced with two membranes. If you trust the experts, he has no problems with the receipt of the coolant. A compact fuse deserves special attention in the device. Conductivity is quite high. This model is produced with an outlet nozzle 2.2 cm.

The tank is usually installed behind the mixer. Some experts believe that the modification is great for wood-fired boilers. The hull is provided in a flat shape, and does not take up much space. It is worthwhile presenting a tank of an expansion type within the limits of 2200-2400 rub.