The main element of a developed heating system is the circulation pump built into it, which makes it possible to evenly distribute heat throughout the serviced room. The accuracy of monitoring the pressure of water and the efficiency of its heating depends on the correct operation of this item of equipment. Therefore, the user first of all learns the rules of choosing a device, the ability to distinguish individual samples according to their performance characteristics. The market presents models of circulation pumps manufactured by various manufacturers. The most attractive brand of equipment of this class are Wilo boiler pumps, 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 the home and in various industries. This association began its work in 1872, when its founder L. Aplander opened a hardware store. Today WILO is a leading manufacturer of pumping units in high demand in various fields. Thanks to the use of highly efficient energy-saving technologies, she manages to produce high-quality equipment that fully complies with European standards.
Over time, the company opened many representative offices with offices around the world. Their total number reaches 60 units.
In the domestic market, this manufacturer is represented by the VILO RUS division, founded in 1997. Now it has about 30 branches, and in 2016 a service center was opened, specializing exclusively in servicing WILO products.
The main task of the management and specialists of the company is to organize the release 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 enhanced functionality in combination with excellent technical indicators.
Principle of operation
The main task that the Wilo circulation pulser solves is the creation of conditions for the constant movement of the coolant in a system with a gas boiler, for example. The circulation ensures uniform heating of the coolant in the water circuit, regardless of its distance from the boiler itself. Creating the necessary working pressure in the system, pumps of this manufacturer are suitable for connection to heating complexes of any configuration.
The principle of operation of pumps for heating Wilo "wet" type is based on direct contact of the impeller with a liquid coolant. The direct interaction of the swap element with a 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 a predetermined indicator of equipment performance.
- By using this technique, the life of the units is noticeably extended.
In all samples of Wilo circulation pumps for heating systems, a cast iron housing is provided, the most critical components are made of anti-corrosion materials.All of them undergo mandatory testing and quality certification procedures before sales.
Equipment Series
Separate pumping units manufactured by Wilo are manufactured in two types: with a dry and a wet rotor. The first type of units is designed for installation in heating systems with a large length of pipe lines. Their advantages include a high coefficient of efficiency, reaching 80 percent. Since such pumps are characterized by increased noise, 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 moving part of the electric motor rotates in a fluid that simultaneously cools the drive mechanism. In this series of pumping equipment, there are o-rings between the motor and rotor that protect the electrical part from moisture. Thanks to this, the noise of his work is noticeably reduced. When considering the dynamic parameters of products from Wilo, it is noted that single- and multi-speed pumping units enter the markets, when choosing which their technical characteristics are taken into account.
How to choose a pump
The right choice of the pump model suitable for a particular heating system will help knowledge of its functionality, as well as familiarity with the characteristics of the selected unit. Before going to the store, first of all, 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 circulation of the coolant;
- 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 Wilo pumps are single-speed and multi-speed. The Star RS modification, for example, has 3 switchable speeds. The first operate in the so-called "heavy" mode - they do not have the option of adjusting 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 energy consumed from the network and reduce wear on the working mechanism.
Specifications
The technical characteristics of Wilo circulation pumps are examined using Star RS-25/2, RS-25/4, RS-25/6 and RS-25/7 as examples. They are represented by the following indicators:
- rated voltage of mains power (220-230 Volts);
- the consumed working 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 pressure - 2/4/6/7 meters.
Star RS-25/2, RS-25/4, RS-25/6 and RS-25/6 models taken as a model are periodically included in the rating of the best samples (Top s) of pumping equipment. Therefore, when assessing the characteristics of other models, the indicators of these 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 loss;
- use in the construction of corrosion-resistant materials;
- the presence of built-in automation that controls the operation of the pump, including the thermostat;
- the use of indicator boards, designed in the form of an LCD display;
- admissibility of switching automation to manual mode;
- silent 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 you to mount the units in places selected at the discretion of the user.
For connection, spring-loaded terminals are used, a multi-stage protection is provided in the motor, which reduces the likelihood of breakage during sudden power surges.
Operational Features
A heating pump in a Wilo private house needs constant maintenance and periodic inspection for compliance with its requirements. To extend the life of expensive equipment, the user takes into account the following features of his work:
- Dust and humidity levels in the room provided for pump installation under normal conditions do not exceed the permissible value specified in the passport.
- The power of the exploited sample corresponds to the load connected to it.
- The working temperature range of the pumped medium is in the range from -10 to +110 degrees.
- When replacing failed assemblies and components, only branded (wear-resistant) parts are used.
- When choosing the operating modes of the equipment as part of the heating complex, allowable loads are taken into account.
After the purchase of pumps from Wilo, all questions regarding the features of their operation are agreed with representatives of service organizations.
For most interested users, Wilo pumping units are the best option for heating equipment. The owner of the house or apartment may not worry about the performance of the unit for a long time.
