When choosing expansion tanks, you should pay attention to:
- area of the heated room;
- heat carrier 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. They are 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 thermal unit. They differ from open tanks by the presence of a membrane inside.
Wester WRV 8 8 L
Wester WRV 8 8 L is made of carbon steel coated with red enamel. It has a vertical design, the most convenient for installation and operation.
It is used as a part of thermal 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 coolant.
A membrane is installed inside the tank, which can be replaced with a new one if necessary. It provides separation of the coolant and air.
The Russian manufacturer Wester gives a 2 year warranty on the tank.
A volume of 8 liters is ideal 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 |
- extended operating temperature range
- convenient threaded connection;
- replaceable membrane.
- no connectors included;
- Professional installation required.
GILEX 10 F 10 L
The expansion tank manufactured by the Russian company "DZHILEKS" is designed to remove excess coolant volume (when heated), as well as to maintain operating pressure in the heating system.
The tank is a steel tank with a rubber membrane inside.
The membrane divides the tank cavity into two chambers (air and water). The tightness of the product provides the most comfortable operating conditions for the device. No air congestion, no recharge 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 |
- wall-mounted execution (space saving);
- convenient threaded connection;
- replaceable membrane.
- no connectors included;
- no supports on the body.
Wester WRV 50 50 L
Tank with vertical installation. Made of high strength carbon steel, epoxy polyester red coating.
Designed to compensate for thermal expansion in closed heating systems. It is completed 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 thermal 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 operation in individual heat supply systems and for organizing heat supply in enterprises.
Specifications
| Volume l | 50 |
| Execution | Vertically |
| Connection (connection diameter, inch) | Thread (3/4) |
| Maximum working pressure, bar | 5 |
| Membrane | Replaceable |
| Coolant | Water, glycol aqueous solution |
- the ability to replace the membrane;
- extended range of operating temperatures of the coolant (-10 ... + 100С);
- convenient threaded connection.
- professional installation is required;
- regular monitoring of air pressure is required.
Reflex NG 100 (8001411) 100 L
The expansion pressure tank has a vertical installation. It is used both in closed heat and cold supply systems.
Inside the tank is divided into two chambers with 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 (heating) changes, the part goes into the tank, while maintaining the necessary pressure in the system. And after cooling, it is “displaced” by gas, back to the system.
Case material is made of high quality steel, gray. The membrane is made of durable synthetic rubber.
This tank can be used both in individual rooms and in residential and industrial facilities.
The manufacturer gives a guarantee of 2 years subject to qualified installation and proper operation.
Specifications
| Volume l | 100 |
| Execution | Vertically |
| Connection (connection diameter, inch) | Thread (1) |
| Maximum working pressure, bar | 6 |
| Membrane | Irreplaceable |
| Weight, kg | 20,5 |
- extended scope (heating, cold supply, ventilation, air conditioning);
- convenient threaded connection;
- reliable manufacturer - Germany.
- non-replaceable membrane;
- too much volume for private homes.
