The main element of a developed heating system is a circulating pump built into it, which makes it possible to evenly distribute heat throughout the serviced room. The accurate tracking of water pressure and the efficiency of its heating depend on the correct operation of this piece of equipment. Therefore, the user first of all masters the rules for choosing a device, the ability to distinguish individual samples according to their performance characteristics. There are models of circulation pumps produced by various manufacturers on the market. The most attractive brand of equipment in this class are pumps for Wilo boilers, which are in high demand among Russian consumers.
Manufacturer information
The group of companies under the name "WILO" is considered the market leader in pumping equipment used in everyday life and in various industries. This association began its work in 1872, when its founder L. Uplander opened a hardware store. Today WILO is a leading manufacturer of pumping units that are in high demand in various fields. Thanks to the use of highly efficient energy-saving technologies, it manages to produce high-quality equipment that fully complies with European standards.
Over time, the company has opened many representative offices with offices around the world. Their total number reaches 60 units.
On the domestic market, this manufacturer is represented by the VILO RUS division, founded in 1997. Now it includes about 30 branches, and in 2016 a service center was opened, specializing exclusively in servicing WILO products.
The main task of the company's management and specialists is to organize the production of the latest equipment that would make people's lives more comfortable. At the same time, all models produced by the company are characterized by high reliability and extended functionality, combined with excellent technical indicators.
Principle of operation
The main task that the Wilo circulation pump for heating solves is to create conditions for the constant movement of the coolant in a system with a gas boiler, for example. Circulation guarantees uniform heating of the coolant in the water circuit, regardless of its distance from the boiler itself. By creating the required operating pressure in the system, the pumps of this manufacturer are suitable for connection to heating systems of any configuration.
The principle of operation of pumps for heating Wilo "wet" type is based on the direct contact of the impeller with a liquid heat carrier. The direct interaction of the pumping element with the heated medium has the following advantages:
- Such a "bundle" works almost silently, which allows you to install pumps directly in residential premises.
- The design provides for a special valve through which air is removed from the system.
- In this case, power consumption is significantly reduced while maintaining the specified performance indicator of the equipment.
- Due to the use of this technique, the service life of the units is significantly extended.
All samples of Wilo circulation pumps for heating systems are provided with a cast-iron casing, the most critical units are made of anti-corrosion materials. All of them undergo mandatory testing and quality certification procedures before being sold.
Equipment series
Individual pumping products manufactured by Wilo are manufactured in two types: with a dry and a "wet" rotor. The first type of units is intended for installation in heating systems with a large length of pipelines. Their advantages include a high efficiency factor, reaching 80 percent. Since these pumps are very noisy, it is recommended to install them in a separate service room.
Models operating in the "wet" rotor mode are suitable for objects with a small length of heating lines. The movable part of the electric motor rotates in a liquid, which simultaneously cools the drive mechanism. In this series of pumping equipment, there are O-rings between the motor and the rotor to protect the electrical part from moisture ingress. Thanks to this, the noise level of its work is noticeably reduced. When considering the dynamic parameters of products from "Wilo", it is noted that single and multi-speed pumping units are entering the markets, the selection of which takes into account their technical characteristics.
How to choose a pump
The knowledge of its functionality, as well as familiarity with the characteristics of the selected unit, will help to choose the right pump model suitable for a specific heating system. Before going to the store, first of all, they get acquainted with the catalog of the offered models, when studying which they pay attention to the following points:
- the power of the presented sample, which determines the efficiency of the coolant circulation;
- supply voltage for which the proposed unit is designed;
- the noise level of the mechanism;
- dimensions of the selected and evaluated sample.
It is also taken into account that pumps from "Wilo" are single-speed and multi-speed. The Star RS modification, for example, has 3 switchable speeds. The first ones operate in the so-called "heavy" mode - they do not have the option to adjust the speed. In the second samples, due to the ability to change the speed of the drive, it is possible to control the performance of the equipment. This option allows you to save on electricity consumed from the network and reduce wear on the working mechanism.
Specifications
The technical characteristics of circulation pumps from "Wilo" are considered on the example of the Star RS-25/2, RS-25/4, RS-25/6 and RS-25/7 samples. They are represented by the following indicators:
- rated voltage of the mains supply (220-230 Volts);
- the consumed operating power, indicated in watts, depending on the speed mode, is regulated in the range from 18 to 132 watts;
- mounting base - 18 cm;
- make-up pressure developed in the system - 10 bar;
- working head - 2/4/6/7 meters.
The Star models RS-25/2, RS-25/4, RS-25/6 and RS-25/7, taken as a sample, are periodically included in the rating of the best examples (Top s) of pumping equipment. Therefore, when assessing the characteristics of other models, the indicators of these particular products are primarily taken into account.
Main advantages
The use of this type of pumping equipment in single-circuit and double-circuit heating systems is explained by the following advantages:
- minimum heat losses;
- use of corrosion-resistant materials in the construction;
- the presence of built-in automation that controls the operation of the pump, including a thermostat;
- the use of indicator panels, designed in the form of an LCD display;
- admissibility of switching automation to manual mode;
- noiseless operation of the electric motor, regardless of the power and performance of the pump.
The advantages of equipment samples from "Wilo" also include compactness, which allows the units to be mounted in places chosen at the discretion of the user.
For connection, spring-loaded terminals are used, the electric motor is provided with multi-stage protection, which reduces the likelihood of breakdown in case of sudden voltage surges in the network.
Features of operation
The heating pump in a Wilo private house needs constant maintenance and periodic checks for compliance with the requirements for it. To extend the life of expensive equipment, the user takes into account the following features of its operation:
- Dust and humidity levels in the room allocated for the pump installation under normal conditions do not exceed the permissible value specified in the passport.
- The power of the operated sample corresponds to the load connected to it.
- The working range of temperatures of the pumped medium is within the range from -10 to +110 degrees.
- When replacing failed units and components, only branded (wear-resistant) parts are used.
- When choosing operating modes of equipment as part of a heating complex, allowable loads are taken into account.
After purchasing pumps from "Wilo", all questions about the features of their operation are agreed with representatives of service organizations.
For most interested users, pumping units from Wilo are the best option for completing heating equipment. The owner of a house or apartment may not worry about the performance of the unit for a long time.
