Most often, heating systems are able to fully function only when a circulation pump is installed. The price of such equipment will be mentioned below. It is also called a pump. The device is necessary to maintain the desired level of fluid pressure in the heating circuit. This is its purpose, which is expressed in maintaining the pressure at the desired level, thereby the coolant overcomes hydraulic resistance, moving water along the circuit. Installation of a circulation pump may involve the presence of several units of such equipment in the system. One unit is installed in the heating boiler, while the other is installed in the heating circuit. If the system has a well-functioning circulation pump, then it is not at all necessary to place the boiler at the lowest point of the circuit.
How to choose a pump
It is important to correctly select the circulation pump, it must meet certain requirements. Among them, pressure should be highlighted, as well as performance. The last parameter indicateshow productive the equipment is. It is necessary to calculate this characteristic under the condition of the minimum load of the device. Among the additional requirements are the working conditions, which are expressed in the volume of the heated room. Here it is important to take into account the type of liquid, the diameter of the pipes, as well as the temperature of the coolant and the environment.
When considering external aspects, it is necessary to pay special attention to the noise level during operation of the device, the size of the device, as well as the complexity of maintenance.
Selection of equipment by external factors
If you will be selecting a circulation pump, it is important to take into account the fact that external conditions will affect its operation. The amount of heat that is needed to heat the room will depend on the ambient temperature. In some cases, this factor also affects the operation of the device itself, this is expressed in the fact that frozen equipment will not function as efficiently as heated equipment.
If you choose the wrong unit, the pump may start to overheat, this happens when it cannot cope with an excessively high load. Before installing the circulation pump, you must determine the parameters of the heating system and boiler equipment, which determine the characteristics of the pump. With a large pipe diameter, there will be more water in the system, while the pump must be more powerful. Among other things, the coolant, which consists of an antifreeze liquid, has a viscosity that differs from the viscositywater. This suggests that the pump should be more reliable and efficient.
Additional recommendations for choosing
When a circulation pump for water is selected, it should be noted that the equipment can work in tandem with the natural circulation circuit. Under these conditions, the load on the device can be very high. That is why, in this case, experts advise choosing a pump with high performance and pressure.
By choosing a device with insufficiently powerful performance, you may encounter the fact that the unit will not “push through” the system well, while the radiators will only heat up a little. The pump in such conditions quite often overheats, and then completely burns out. It is not recommended to install a 1" pump in 1.25" pipes with adapters. In this case, the required pressure may not be provided.
Consumer reviews of pumps from different manufacturers
The circulation pump, which you will install yourself, must be of good quality, and it is important to pay attention to manufacturers. The models differ from each other only in terms of service life and degree of reliability. As for the characteristics, almost all variants of the described pumps are similar to each other. The most common brands on the market for the relevant equipment are: Wilo, Grundfos, Wester, Speroni. The first two brands are the most reliable, theycharacterized by quiet operation and durability.
It will be possible to make sure that the equipment works, if it is made by these manufacturers, by approaching the device at 10 centimeters. According to experienced users, the products of these companies have been working for years and do not imply the need for repairs. But these devices have one big disadvantage, which is expressed in high cost, the price will be twice as high compared to products made by other well-known companies.
If you want to save money, then you should consider other of the listed brands, they produce products that are considered average in terms of quality and price. This is exactly what consumers think. The equipment will work well, and problems may occur only in rare cases. If you need a circulation pump, the installation of which will be done by you yourself, then you should not, wanting to save money, purchase Chinese products. According to the owners, sooner or later, such devices begin to make noise, the rotor becomes loose, the pump fails and burns out. Nothing can be said about the service life. Users emphasize that Chinese-made pumps can work for only 2 months or reach up to 2 years. The only advantage is the affordable price.
Performing installation
The circulation pump, which you will install yourself, is ready to serve the entire life of the operation, if properlydetermine the location of the tie-in in the pipeline. The master must select the position of the unit in relation to the horizon line. The shaft of the electric motor must be located strictly horizontally. Otherwise, air locks may occur, which will leave the bearings without cooling and lubrication. Equipment under such conditions will quickly wear out and fail. Looking at the pump housing, you will see an arrow that indicates the direction of the coolant in the system.
Need to use filter
The circulation pump, which must be installed according to the technology, functions effectively in tandem with the sump, whose task is to filter the coolant. This addition is capable of retaining sand, abrasive elements and scale. If dirt gets inside the pump, the impeller and bearings may be destroyed. Due to the fact that the diameter of the tie-in for installing the pump has an impressive size, it is permissible to use a traditional coarse filter. The barrel, which is necessary for collecting suspension, should be directed downwards. This will eliminate the possibility that the filter will act as an obstacle to water circulation.
Cost
The circulation pump, the price of which is 3600 rubles, is best placed on the return pipeline, after the expansion membrane tank. Therefore, the device must be in front of the heating boiler.
Conclusion
When arranging the system, it must be remembered that the durationperformance of plastic parts and bearings will depend on the level of water temperature. Be that as it may, the system needs a circulation pump, with its help it will be possible to normalize the pressure and return it to the template value.
