When choosing expansion tanks, you should pay attention to:
- the area of the heated room;
- coolant volume;
- in a closed or open heating system will be used;
- the presence of forced circulation.
All expansion tanks are divided into two types:
- Open... They are used in open heating systems in which there are no circulation pumps. The movement of the coolant (water) occurs due to the heating of the liquid. Installed at the highest points of the room (for example, in attics).
- Closed... They are used in closed systems. Pumps are used to circulate the coolant. They can be installed directly in the heating unit. They differ from open tanks by the presence of a membrane inside.
Wester WRV 8 8 l
It is used as part of heating equipment to compensate for the thermal expansion of water. It is also allowed to use an aqueous solution of glycol with a concentration of up to 50% as a heat carrier.
A membrane is installed inside the tank, which, if necessary, can be replaced with a new one. It separates the coolant from the air.
The Russian manufacturer Wester gives a 2-year warranty for the tank.
A volume of 8 liters is optimal for a small private house.
Specifications
Volume, l | 8 |
Execution | Vertically |
Connection (connection diameter, inch) | Thread (3/4) |
Maximum working pressure, bar | 5 |
Membrane | Replaceable |
Weight, kg | 2 |
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- extended range of operating temperatures of the coolant
- convenient threaded connection;
- replaceable membrane.
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- no connectors included;
- professional installation is required.
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GILEX 10 F 10 l
The tank is a steel container with a rubber membrane inside.
The membrane divides the tank cavity into two chambers (air and water). The tightness of the product ensures the most comfortable operating conditions for the device. There are no air locks, no make-up is required, in the absence of air in the heating system, the service life of radiators and pipes increases.
Specifications
Volume, l | 10 |
Execution | Vertically |
Connection (connection diameter, inch) | Thread (3/4) |
Maximum working pressure, bar | 5 |
Membrane | Irreplaceable |
Weight, kg | 4 |
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- wall-mounted (space saving);
- convenient threaded connection;
- replaceable membrane.
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- no connectors included;
- no supports on the body.
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Wester WRV 50 50 l
Designed to compensate for thermal expansion in closed heating systems. Supplied with a replaceable membrane. Designed for a maximum working pressure of 5 bar.
This model has supports for a more reliable and convenient location in the heating unit.
The manufacturer guarantees uninterrupted operation of the device for 7 years, with proper installation and careful operation.
The expansion tank of this model is suitable for use in individual heat supply systems and for organizing heat supply at enterprises.
Specifications
Volume, l | 50 |
Execution | Vertically |
Connection (connection diameter, inch) | Thread (3/4) |
Maximum working pressure, bar | 5 |
Membrane | Replaceable |
Heat carrier | Water, aqueous glycol solution |
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- the possibility of replacing the membrane;
- extended operating temperature range of the coolant (-10 ... + 100C);
- convenient threaded connection.
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- professional installation is required;
- regular monitoring of the air cavity pressure is required.
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Reflex NG 100 (8001411) 100 l
Inside, the tank is divided into two chambers by a special membrane. The first is an air chamber filled with nitrogen, a low inert gas under pressure. The second chamber for the coolant (water).
When the temperature of the liquid changes (heating), part goes into the tank, while maintaining the required pressure in the system. And after cooling it is “displaced” by gas back into the system.
The body material is made of high quality steel, gray color. The membrane is made of durable synthetic rubber.
This tank can be used both in individual premises and in residential and industrial buildings.
The manufacturer gives a 2-year warranty on condition of qualified installation and correct operation.
Specifications
Volume, l | 100 |
Execution | Vertically |
Connection (connection diameter, inch) | Thread (1) |
Maximum working pressure, bar | 6 |
Membrane | Irreplaceable |
Weight, kg | 20,5 |
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- extended scope (heating, cold supply, ventilation, air conditioning);
- convenient threaded connection;
- reliable manufacturer - Germany.
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- non-replaceable membrane;
- too large for private houses.
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