The key element of the heating system is the circulation pump. With this equipment, heat is evenly distributed throughout the room. Depending on how high-quality the device is, the water pressure indicator and the efficiency of its heating will change.
Not all users know how to choose these devices correctly, what technical characteristics to pay attention to. At the moment, there are many manufacturers of this type of equipment. WILO circulation pumps for heating systems are in great demand among consumers.
Vilo at a glance
The WILO Group is the world's leading manufacturer of pumping equipment used in the domestic, municipal and industrial sectors. The company was founded back in 1872 when its founder Louis Uplander began to manufacture hardware.
WILO is currently the leader in digital innovation. The company compares favorably with competitors with highly efficient and energy-saving solutions, which allows it to produce high-quality equipment according to German standards. Now the enterprises of this company are open all over the world, their number reaches 60.
The division "VILO RUS", founded in 1997, operates on the domestic market. Now it includes 30 branches. In 2016, its own service center was opened, which specializes in the repair of WILO equipment.
Features of WILO brand pumps
The main task of the company is to create such equipment that will make users' lives more comfortable. It is for this reason that all manufactured devices are characterized by reliability. Pumps can be of different designs, scope and functionality. The entire model range has the main advantage - energy efficiency, which saves money on electricity.
Benefits
Natural circulation is most often used in modern heating systems. But there are situations when forced transportation of the coolant is required. To accomplish this task, you need to know how to choose the right pumping equipment. Many factors influence the choice, but the most important is the power indicator, the intensity of the water supply will depend on it.
WILO products are characterized by the following operational advantages:
- Has no heat loss.
- Corrosion-resistant materials are used for the manufacture of equipment components.
- The system is controlled by automation. Typically, the models have a built-in thermostat, and an LCD display is provided to display all functions. If desired, you can switch to manual control, which is necessary to control the shaft speed.
- Even if a high-powered model is selected, it will operate almost silently.
- Compact dimensions. This allows you to easily install the pump in the desired location.
- It is connected by means of spring terminals, which does not take much time and effort.
- The rotor and motor have a multi-stage protection system, which makes the unit immune to power surges.
The only disadvantage of modern pumping units is that electricity is required for their full operation. Therefore, it is not recommended to purchase them for those areas where there are problems with the supply of electric current.
The devices are suitable for both the heating system and the air conditioning of the premises. The lineup includes dozens of different types that differ in characteristics and functionality. Therefore, choosing the right model for a specific task will not be difficult.
Prices for a range of WILO circulation pumps
circulation pumps WILO
Design and principle of operation of Wilo circulation pumps
The most important function that the circulation equipment performs is the creation and provision of conditions for the constant movement of the coolant in the heating system. Thanks to well-established circulation, the surface of the water circuit heats up evenly, regardless of how far away the boiler is. The Wilo circulation pump provides the required pressure and is suitable for connection to heating systems of any configuration.
More information about the types of circulation pumps can be found in this article.
The German company Wilo is the founder of all modern circulation pumps. Back in the early 20th century, the company developed the first system of forced movement of liquid in pipes. It was Vilo that developed the first series of electronically controlled hot water heating pump (1988).
Despite a lot of competition, the company still occupies a leading position in this area. A distinctive feature of the products is an integrated approach to solving problems such as heating, air conditioning / cooling.
The pumps are designed with a wet rotor. The impeller and all moving parts are completely immersed in the coolant. The principle by which the device operates is in the contact of the impeller with a liquid medium.
The technical characteristics of the Wilo circulation pump meet the highest requirements:
- A wide range of operating parameters - maximum pressure up to 16 bar, temperature regime of the heat carrier from -10 ° С to + 110 ° С.
- Thanks to the centrifugal wheel, radial movement of water is ensured, due to this, hydraulic resistance is reduced.
- The control system is three-stage, with an extended switching interface or with automatic power control.
The design of Wilo pumps is very sophisticated, it is characterized by high efficiency and productivity. The models produced are suitable for radiators, multi-circuit heating systems, as well as hot water supply and air conditioning.
Types of circulation equipment "VILO"
Many owners of suburban housing are faced with the problem of choosing equipment for efficient heating of a large area - up to several hundred square meters. Natural circulation created by a conventional heater is insufficient, because the pressure in such a system rarely exceeds 0.6 MPa.
This problem is solved in two ways:
- A closed system of large-diameter communications is being built. Here you need to take into account that the materials will cost a lot.
- A circulation pump is added to the system.
A more economical option is the second. It will improve the circulation of the coolant in the system, which will increase the heating efficiency. Modern pumping units produced by the WILO brand are of two types, the features of which will be discussed below.
Dry rotor
Such devices are used in long-distance heating systems. O-rings are placed between the pump motor and the rotor, the operation of which is designed for 3 years. During operation, the rotor does not come into contact with the coolant. Thanks to this, the device is reliably protected from corrosion and requires virtually no maintenance. The advantage of pumps with a dry rotor is a high level of efficiency, reaching 80%.
It should be borne in mind that this type of product is quite noisy, so they are installed in a specially designed room. It is important that there are no foreign particles in the fluid that could damage the O-rings.
Wet rotor
With the help of such models, country houses are heated, where heating systems have a short length.A distinctive feature is the presence of a rotor and impeller, which is necessary to accelerate the movement of the coolant. The rotor itself rotates in a liquid, which additionally serves as a cooling mechanism for the mechanism.
When installing such pumps, it is important that their shaft is located in a horizontal plane - only under such conditions water will always remain in the housing.
Glandless pumps have the following advantages:
- almost do not make noise during work;
- have a built-in mechanism for switching the rotor speed;
- are reliable;
- characterized by a long service life;
- do not require additional maintenance;
- easily set up and repaired.
The efficiency index of these installations does not exceed 50%.
How to choose a centrifugal pump for water supply?
If quiet operation is important, then it is better to give preference to pumps of the "wet" type. The dry version is noisy and requires a separate room.
When choosing a circulation pump, it is necessary to take into account the diameter of the working pipeline. Sometimes a more powerful pump is needed for a smaller pipe.
All equipment is certified and has a warranty period of 24 months.
For more information on the questions you are interested in, you can use a multi-channel phone or send an e-mail
Pump types by number of speeds
Each pump is designed with a certain number of speeds. The performance of the equipment depends on this parameter. WILO products are available in single and multi-speed, which allows you to select a product for a specific system.
Single speed
Such models are not speed-controlled. If you turn them on, they will only work at maximum power. These products are the simplest from a technical point of view and affordable, since there are no additional elements in the design - regulators. The option is convenient in those situations where the pump must operate at maximum power - as a rule, these are common cases, therefore such products are very popular.
Multi-speed
Due to the presence of several speeds, the user can choose the intensity of the pumping equipment. For example, in some situations it is not necessary for the device to operate at full power, and a reduced speed is set. This leads to energy savings and less wear on the working mechanism.
Modern equipment can have 3 or even 4 speeds, so the user himself decides in which mode the pump will work. More speeds are not found.
Varieties of Vilo circulation pumps
Wilo supplies a wide range of products to the market. The most popular lines are: Wilo Stratos, Wilo Star, Wilo TOP-S, etc.
They are distinguished by high reliability, performance, easy maintenance and very rarely break down. However, each circulation pump has its own characteristics that are different from other samples. These are not only technical characteristics, but also the device, functioning features, etc.
According to these indicators, they are divided into several types, which we will talk about.
First, pumps differ in the type of motor and rotor used. There are dry and wet rotor devices.
In the case of a dry rotor, we are talking about a powerful pump, which is designed to significantly increase the pressure in the system and has serious technical characteristics. The rotor and the motor are located in a special isolated chamber, so they do not come into contact with the coolant in any way.
This is exactly how manufacturers manage to use components with high power, which can significantly increase the pressure in heating systems. However, such devices also have shortcomings. Using a device with a dry rotor, you may be faced with a situation where this part will have to be repaired. You will need to spend a lot of money on this, because this element is assembled from expensive parts. Another disadvantage is noise during operation.
In addition, such structures consume a large amount of electrical energy and need constant maintenance, these models can create a head at a level of 5-10 meters. Their efficiency is also high.
Dry rotor pumps are in need of service and repair. This is due to the fact that the engine runs dry and wears out over time.
You can read about how to disassemble and repair the circulation pump here.
Wilo circulation pumps with a wet rotor differ from the previous ones. They are much easier to disassemble or modify. Such pumping systems do not require regular maintenance and repair. Lubrication and maintenance in normal condition of all parts of the device is achieved thanks to the liquid in the heating circuit.
Such models have reduced technical characteristics and power consumption (they give out a pressure of 2-4 meters). They are quiet, high performance and practical. In addition, a Wilo pump with a wet rotor will cost 2 times cheaper than devices with a dry rotor.
Based on the number of speed modes, the pumps are divided into:
- single speed;
- multi-speed.
The first are standard models. They are usually produced with a wet rotor and mounted on certain areas of heating systems. Its functions are quite primitive, the device applies its technical characteristics in order to uniformly increase the pressure and flow rate in one of the sections.
Multi-speed units can switch between modes and adapt to different conditions. They are characterized by higher indicators of power and efficiency, however, and the price for them is higher.
How to calculate the power of the circulation pump read here
On a note! The more complex design makes it necessary to repair such devices.
By the type of connection, circulation pumps are:
- flanged;
- threaded.
Everything is quite simple here: flanges are more suitable for large systems, and threaded ones are more suitable for domestic conditions.
Marking
On each model of manufactured equipment, in addition to the instructions, a special plate is attached to which all the necessary technical designations are applied. If you can read them, it becomes clear for what purpose the pump is used, its performance and much more.
Now several models of WILO pumps are produced:
- Star-RS (RSL, RSD) - heating systems, air conditioning, cooling;
- Star-E - industrial heating models with electronic control;
- Star-AC - refrigeration and air conditioning;
- Star-Z - hot water supply;
- Star-ST - solar thermal systems.
To make it clearer, consider an example.
WILO Star-XX 25 / 1-5 YY:
- Star - equipment type;
- eXX - suitable for which systems;
- 25 - indicator of the inner diameter of the branch pipe;
- 1–5 - possible head measured in meters;
- YY - single or three-phase electric motor.
These are the basic parameters found in the device name.
What else is indicated in the marking:
- brand logo;
- product number and production date;
- model;
- Class F - indicator of resistance to heating of the heat carrier;
- IP - pump protection level;
- PN - permissible working pressure;
- Tmax - maximum operating temperature level;
- SV0 - software availability (if additional functionality is connected, then this parameter is of great importance);
- P1max, P1min - ranges of permissible temperature;
- Imax, Imin - current required for operation;
- 1–230 V - voltage.
These designations are the most common and, starting only from them, you can already make the right choice of equipment. All other characteristics are indicated in the product passport.
Wilo Top pump
The next model we will look at is called Wilo Top. The model is a logical continuation of the line of pumps with the purpose of arranging heating and air conditioning systems; it differs from the previous model in increased technical characteristics.
The Wilo Top pump is already capable of circulating the heating medium in medium and large industrial plants. The pump is widely used in various heating points, apartment buildings, schools and other institutions. Wilo Top performance consistently ensures operability in heating systems up to 1400 m2. Let's take a look at the “German order” and the decoding of the Wilo Top pump:
Pump Wilo TOP - S 25/5 EM
- Wilo TOP pump - the name of the series, with the translation for top;
- S → ordinary standard pump, SD → double pump version, Z → bronze pump casing for special applications in hot water supply, D → four-pole pump with constant speed (max. 1400 rpm);
- 25 – pump connection indicates the inner diameter in millimeters, Threaded connection: 20 (Rp 3/4), 25 (Rp 1), 30 (Rp 1 1/4). The pump is also widely used as a combined flange connection with pressure PN6 / 10 for diameters DN 32, 40, 50, 65 and flange connection with pressure PN6 or PN16 for DN 80, 100;
- 5 – Maximum head measured in meters at zero flow, Q = 0 m3 / h;
- EM - single-phase electric motor 1 ~ 230 V, DM - three-phase electric motor 3 ~ 400 V
The pump is optionally equipped with a thermal insulation casing, since possible outdoor operation is assumed.
Wilo TOP specifications
| A type | Max. consumption | Max. for a while | Connecting to pipes-defining | Thread | Nominal internal flange diameter | Nominal pressure | Gaba-rit-naya length-on | Connecting to the network | Gross weight | Art.-No. |
| Qmax / m3 / h | Hmax / M | PN / bar | l0 / mm | m / kg | ||||||
| TOP-S 25/5 | 5 | 5 | Rp 1 | G 1½ | 10 | 180 | 1 ~ 230 V, 50 Hz | 4,4 | 2044009 | |
| TOP-S 25/5 | 5 | 5 | Rp 1 | G 1½ | 10 | 180 | 3 ~ 400/230 V, 50 Hz | 5,2 | 2044010 | |
| TOP-S 25/7 | 8 | 7 | Rp 1 | G 1½ | 10 | 180 | 1 ~ 230 V, 50 Hz | 5,3 | 2048320 | |
| TOP-S 25/7 | 8 | 7 | Rp 1 | G 1½ | 10 | 180 | 3 ~ 400/230 V, 50 Hz | 5,3 | 2048321 | |
| TOP-S 25/10 | 10 | 12 | Rp 1 | G 1½ | 10 | 180 | 1 ~ 230 V, 50 Hz | 7,1 | 2061962 | |
| TOP-S 25/10 | 10 | 12 | Rp 1 | G 1½ | 10 | 180 | 3 ~ 400/230 V, 50 Hz | 7,0 | 2061963 | |
| TOP-S 25/13 | 4 | 13 | Rp 1 | G 1½ | 10 | 180 | 1 ~ 230 V, 50 Hz | 5,5 | 2084440 | |
| TOP-S 25/13 | 4 | 13 | Rp 1 | G 1½ | 10 | 180 | 3 ~ 400/230 V, 50 Hz | 5,5 | 2084441 | |
| TOP-S 30/4 | 9 | 4 | Rp 1¼ | G 2 | 10 | 180 | 1 ~ 230 V, 50 Hz | 5,1 | 2044011 | |
| TOP-S 30/4 | 9 | 4 | Rp 1¼ | G 2 | 10 | 180 | 3 ~ 400/230 V, 50 Hz | 5,5 | 2044012 | |
| TOP-S 30/5 | 5 | 5 | Rp 1¼ | G 2 | 10 | 180 | 1 ~ 230 V, 50 Hz | 4,6 | 2044013 | |
| TOP-S 30/5 | 5 | 5 | Rp 1¼ | G 2 | 10 | 180 | 3 ~ 400/230 V, 50 Hz | 5,5 | 2044014 | |
| TOP-S 30/7 | 8 | 7 | Rp 1¼ | G 2 | 10 | 180 | 1 ~ 230 V, 50 Hz | 5,5 | 2048322 | |
| TOP-S 30/7 | 8 | 7 | Rp 1¼ | G 2 | 10 | 180 | 3 ~ 400/230 V, Hz | 5,6 | 2048323 | |
| TOP-S 30/10 | 10 | 12 | Rp 1¼ | G 2 | 10 | 180 | 1 ~ 230 V, 50 Hz | 7,2 | 2066132 | |
| TOP-S 30/10 | 10 | 12 | Rp 1¼ | G 2 | 10 | 180 | 3 ~ 400/230 V, 50 Hz | 7,2 | 2066133 | |
| TOP-S 40/4 | 14 | 4 | DN 40 | 6/10 | 220 | 1 ~ 230 V, 50 Hz | 10,4 | 2080040 | ||
| TOP-S 40/4 | 14 | 4 | DN 40 | 6/10 | 220 | 3 ~ 400/230 V, 50 Hz | 10,6 | 2080041 | ||
| TOP-S 40/7 | 16 | 7 | DN 40 | 6/10 | 250 | 1 ~ 230 V, 50 Hz | 12,4 | 2080042 | ||
| TOP-S 40/7 | 16 | 7 | DN 40 | 6/10 | 250 | 3 ~ 400/230 V, 50 Hz | 12,6 | 2080043 | ||
| TOP-S 40/10 | 21 | 10 | DN 40 | 6/10 | 250 | 1 ~ 230 V, 50 Hz | 15,5 | 2080044 | ||
| TOP-S 40/10 | 21 | 10 | DN 40 | 6/10 | 250 | 3 ~ 400/230 V, 50 Hz | 15,9 | 2080045 | ||
| TOP-S 40/15 | 21 | 15 | DN 40 | 6/10 | 250 | 1 ~ 230 V, 50 Hz | 22,6 | 2080046 | ||
| TOP-S 40/15 | 21 | 15 | DN 40 | 6/10 | 250 | 3 ~ 400/230 V, 50 Hz | 22,5 | 2080047 | ||
| TOP-S 50/4 | 23 | 5 | DN 50 | 6/10 | 240 | 1 ~ 230 V, 50 Hz | 13,9 | 2080048 | ||
| TOP-S 50/4 | 23 | 5 | DN 50 | 6/10 | 240 | 3 ~ 400/230 V, 50 Hz | 14,1 | 2080049 | ||
| TOP-S 50/7 | 28 | 7 | DN 50 | 6/10 | 280 | 1 ~ 230 V, 50 Hz | 17,0 | 2080050 | ||
| TOP-S 50/7 | 28 | 7 | DN 50 | 6/10 | 280 | 3 ~ 400/230 V, 50 Hz | 17,8 | 2080051 | ||
| Qmax / m3 / h | Hmax / M | PN / bar | l0 / mm | m / kg | ||||||
| TOP-S 50/10 | 32 | 10 | DN 50 | 6/10 | 280 | 1 ~ 230 V, 50 Hz | 19,0 | 2080052 | ||
| TOP-S 50/10 | 32 | 10 | DN 50 | 6/10 | 280 | 3 ~ 400/230 V, 50 Hz | 19,1 | 2080053 | ||
| TOP-S 50/15 | 39 | 16 | DN 50 | 6/10 | 340 | 3 ~ 400/230 V, 50 Hz | 26,8 | 2080055 | ||
| TOP-S 65/7 | 32 | 7 | DN 65 | 6/10 | 280 | 1 ~ 230 V, 50 Hz | 20,5 | 2080056 | ||
| TOP-S 65/7 | 32 | 7 | DN 65 | 6/10 | 280 | 3 ~ 400/230 V, 50 Hz | 19,6 | 2080057 | ||
| TOP-S 65/10 | 40 | 8 | DN 65 | 6/10 | 340 | 1 ~ 230 V, 50 Hz | 22,4 | 2080058 | ||
| TOP-S 65/10 | 40 | 8 | DN 65 | 6/10 | 340 | 3 ~ 400/230 V, 50 Hz | 23,3 | 2080059 | ||
| TOP-S 65/13 | 49 | 13 | DN 65 | 6/10 | 340 | 3 ~ 400/230 V, 50 Hz | 29,4 | 2080060 | ||
| TOP-S 65/15 | 52 | 15 | DN 65 | 6/10 | 340 | 3 ~ 400/230 V, 50 Hz | 31,0 | 2080061 | ||
| TOP-S 80/7 | 49 | 7 | DN 80 | 6 | 360 | 1 ~ 230 V, 50 Hz | 26,5 | 2080062 | ||
| TOP-S 80/7 | 49 | 7 | DN 80 | 6 | 360 | 3 ~ 400/230 V, 50 Hz | 25,0 | 2080063 | ||
| TOP-S 80/7 | 49 | 7 | DN 80 | 10 | 360 | 3 ~ 400/230 V, 50 Hz | 26,4 | 2080064 | ||
| TOP-S 80/10 | 65 | 10 | DN 80 | 6 | 360 | 3 ~ 400/230 V, 50 Hz | 33,9 | 2080065 | ||
| TOP-S 80/10 | 65 | 10 | DN 80 | 10 | 360 | 3 ~ 400/230 V, 50 Hz | 33,3 | 2080066 | ||
| TOP-S 80/15 | 70 | 16 | DN 80 | 6 | 360 | 3 ~ 400 V, 50 Hz | 45,7 | 2080067 | ||
| TOP-S 80/15 | 70 | 16 | DN 80 | 10 | 360 | 3 ~ 400 V, 50 Hz | 45,7 | 2080068 | ||
| TOP-S 80/20 | 76 | 19 | DN 80 | 6 | 360 | 3 ~ 400 V, 50 Hz | 48,9 | 2080069 | ||
| TOP-S 80/20 | 76 | 19 | DN 80 | 10 | 360 | 3 ~ 400 V, 50 Hz | 48,9 | 2080070 | ||
| TOP-S 100/10 | 65 | 10 | DN 100 | 6 | 360 | 3 ~ 400/230 V, 50 Hz | 36,9 | 2080071 | ||
| TOP-S 100/10 | 65 | 10 | DN 100 | 10 | 360 | 3 ~ 400/230 V, 50 Hz | 36,9 | 2080072 |
Wilo Top modifications
The manufacturer of the concern manufactures at its enterprises about 50 modifications of the Wilo TOP pump. The main differences are the flange mounting dimensions and performance specifications. In addition to the standard version S, the manufacturer Vilo company produces Wilo TOP-Z - circulating drinking water supply systems, the hydraulic part of the pump is made of a bronze alloy. The pump has won a solid place in industrial facilities such as schools, kindergartens, and other buildings. Wilo TOP-Z- is intended for operation exclusively for pumping clean drinking water.
As a rule, choose a pump
Many users do not know which equipment parameters to pay attention to when choosing.
Many factors affecting the operation of the heating system are taken into account:
- The required amount of heat. Many important conditions apply here: the area of the room, the height of the ceilings, the number of storeys, the number of windows and doors, as well as the material of their manufacture. The factor of basement and attic insulation is also taken into account.
- Climatic conditions of the area. When choosing, one should start from the minimum air temperature, the frequency of wind loads and other features.
- The construction of the heated building. The thickness and material of manufacture of walls, floors and ceilings are taken into account.Equally important is the presence of a ventilation system in the house.
In short, there are many criteria that should be taken into account when selecting effective equipment. If the skills and knowledge are not enough, you should contact a specialist.
The following are also taken into account: the number of installed batteries, the power of the boiler, the features of the water distribution scheme. Another important indicator is pressure. To determine it, they are based on the total hydraulic resistance of the system. As a rule, this parameter is indicated even at the design stage of the house.
If the living area is small (less than 3000 m2), then this makes it easier to choose:
- 200 m2 - WILO Star RS 25 2;
- 350 m2 - Star RS 25 4;
- 520 m2 - Star RS 25 6 or RSD 30 6;
- 700 m2 - Star RS 25 7 or 30 7.
All manufactured equipment operates almost silently and does not require maintenance. In addition, ease of control is achieved through built-in automation.
Characteristics of popular series
The most demanded today are pumps of the Wilo-TOP-S and Wilo Star RS series, we will tell you about their characteristics in more detail.
Wilo-TOP-S
Wilo-TOP-S pumps with a wet rotor can be flanged or threaded, and have a choice of speed stages. They are used not only in hot water heating systems, but also in air conditioning systems, industrial circulation plants, and closed cooling circuits.
For reference. Pumps of this series belong to the middle price segment - their cost reaches 40,000 rubles.
The main parameters of each model are indicated in the marking.
For example, a wilo top s 40 10 pump has the following characteristics:
- 40 is the nominal inner diameter in mm of the connections to the system;
- 10 - nominal head or delivery head in meters at zero flow.
For example, the table shows the characteristics of the wilo top s 40 7 pump.
| Working temperature range | Bandwidth | Power consumption | Connector diameter | Installation | Maximum head |
| 0C | m3 / h | W | inch | m | |
| from -20 to +130 | 17 | 400 | 1,25 | vertical | 7 |
And the next picture graphically shows the main characteristics of all pumps in this series.
The dependence of the pressure on the supply
Wilo star rs
These circulating pumps have only a threaded connection, as well as a wet rotor and three stages of speed, with the help of which the power is regulated. The instruction allows their use in hot water heating systems, air conditioning, underfloor heating, cold water supply, as well as in circulating industrial installations.
For reference. Pumps of this series are more in demand among individual consumers, as they are much cheaper. Their price ranges from 5000-9000 rubles.
Here are the characteristics of the most popular devices:
| Pump name | Working temperature range | Bandwidth | Power consumption | Connector diameter | Installation | Maximum head |
| 0C | m3 / h | W | inch | m | ||
| Wilo star rs 25 pump 2 characteristics | from - 10 to +110 | 2,2 | 49 | 1 | horizontal / vertical | 2 |
| Wilo star rs 25 pump 6 characteristics | from - 10 to +110 | 3,9 | 85 | 1,5 | horizontal / vertical | 6 |
| Wilo star rs 25 pump 8 characteristics | from - 10 to +110 | 5,8 | 176 | 1,25 | horizontal / vertical | 8 |
| Wilo star rs 30 pump 6 characteristics | from - 10 to +110 | 3,5 | 99 | 1,25 | horizontal / vertical | 6 |
| Wilo star rs 30 pump 7 characteristics | from - 10 to +110 | 5 | 85 | 1,25 | horizontal / vertical | 7 |
| Wilo star rs 30 pump 8 characteristics | from - 10 to +110 | 6 | 39 | 1,25 | horizontal / vertical | 8 |
Graphical technical data
Advice. Choosing the right unit is quite simple: you need to compare the characteristics indicated in the technical passport with the required parameters. If you find it difficult to do this, tell the consultant in the store the area of the heated room, the diameter of the pipes and other parameters, and he will select a pump for you.
Review of popular models and their cost
The WILO brand produces a wide range of pumping equipment for heating country houses. All models differ in many respects: power, head, coolant temperature and other characteristics.
Star
The equipment of this line is used in domestic conditions and is suitable for organizing a heating system in a small house.
There are two series:
- Star Rs. This includes 12 models labeled from 15-4 to 30-8.Heat-resistant cast iron is used for the manufacture of the body. Parts that come into contact with the coolant during operation are made of stainless steel. The Star RS is manually regulated, and these pumps are capable of generating pressures up to 10 bar. The maximum throughput rate is 6 m3 per hour.
- Star RSD. These are more functional devices. With their help, you can increase the pressure in the system. Devices connected to such a pump can last longer. In addition, the module can be simultaneously connected to two circuits at once. The device is completed with a special switch required to adjust the electric motors. The weight of the device is only 5 kg, but it is able to provide the necessary pressure for a house of 750 m2.
We should also highlight the 15 WILO Star Z Nova model, which is used for recirculation in hot water supply systems. The head and performance of each model is different. The price of these devices starts at 3600 rubles.
Top
This category of pumps is used in heating systems for large cottages and apartment buildings. Due to their high performance, they can be connected to systems where the heating area does not exceed 1400 m2.
A distinctive feature is the presence of thermal insulation, so the device is suitable for outdoor installation. The maximum working pressure is 10 bar.
The following models are produced:
- RL and S. These are the most efficient wet rotor units available with one or two motors. They are connected to a one- or three-phase network. The three-speed pump is equipped with a mechanical switch.
- Z. By purchasing this unit, you do not have to worry about the quality of the coolant. Often the Z 15 TT 1 model is chosen, which is not afraid of calcium or magnesium precipitation. There are no strict requirements for the installation site.
- TOP. These are basic devices, the number of which is more than 50. They differ in flange size and performance.
In short, if you need a device for a large house, you should pay attention to the Top series, where you will definitely find a suitable model. You can buy a circulation pump for heating WILO at a price of 15 150 rubles.
Stratos
This is a relatively new invention in the field of pumping equipment. The key feature is the built-in LCD display for control. The screen displays the necessary information about the operation of the device. The line was created with the assumption that the pumps will be installed in large heating systems. Connection to a boiler with a capacity of 25 kW or more is possible.
Key Features:
- power adjustment from 2 to 48 W;
- the presence of a night mode, during which a minimum of electricity is consumed;
- automatic adjustment of performance indicators, for which the controller must be connected to a room thermostat.
Among the list of models, there are 2 interesting ones: with a bronze case and increased productivity (16 bar). Best of all, this line shows itself in energy-saving systems. The cost starts at 10,485 rubles.
Yonos
These are models equipped with an electronic control unit and air protection. An additional function is the removal of solid attachments from the liquid. Mode switching is mechanical. If it is necessary to achieve efficiency, the device is switched to automatic mode. Operating information is displayed on the indicator panel: what is the pressure in the system, how much electricity the pump consumes, and so on.
This series is one of the last released by the company, therefore it has absorbed all the positive qualities of its predecessors. The price of these modern devices is from 8900 rubles.
Wilo-Stratos pump
An improved model of the Wilo Stratos. Smooth power control. A special feature of the pump is the release function. The device module is electronically controlled.Designed and developed for large heating systems with the ability to connect to an automated control system. Supplied with connection to boilers with a capacity of 25 kW or more.
The main advantages of Wilo-Stratos are exemplary energy efficiency indicators with the highest - "A" energy class. The electronic pump control module is located next to the terminal box. The declared power of the Wilo Stratos pump at its peak value does not exceed 48 watts, complete with a “smart boiler” when operating in night mode. Connecting the pump to a thermostat automatically allows you to select the optimal speed, performance, depending on current needs.
Wilo Stratos design
The foundation of the Wilo Stratos structure is synchronous motor. The rotor is made with permanent magnets. In contrast to the stainless steel cartridge used in previous models, the Stratos version has a unique carbon-based composite material as the separating bowl.
In addition, there are models made of bronze alloy, in addition, there are options with an increase in pressure up to 16 bar. Providing high reliability, low noise performance. Wilo-Stratos becomes the ideal solution for the operation of large project systems.
Installation features
Installation can take place in different ways.
There are 2 schemes:
- One-pipe. The coolant is constantly consumed, while the temperature drops are insignificant.
- Two-pipe. With high drops and variable flow.
Before starting installation work, the instructions for the product are studied in detail. It is also important to choose the place of installation, namely, there must be access to the device for maintenance. Most often, this type of equipment is installed in front of the boiler. Installation on the supply is not relevant, since there is a possibility of creating a vacuum.
Installation steps:
- The remaining liquid is drained from the system.
- The pipeline is being cleaned.
- The pump itself and auxiliary fittings are being installed.
- Liquid is poured into the system, from which excess air is removed.
For proper installation, preparation of the bypass is required. Thanks to him, the device will be able to continue its work, even if the power is cut off. The diameter of the main pipe and the bypass must be different.
Adhering to these recommendations, even a beginner wizard will cope with the installation:
- For maximum performance, the instrument shaft must be horizontal.
- The terminal box is installed from above.
- There must be a ball valve on each side of the pump for subsequent servicing.
- The system must have a filter that removes small particles from the coolant.
- A vent valve should be placed on top of the bypass line.
- The presence of shut-off valves is necessary so that water does not leak.
- An expansion tank is provided for an open heating system.
- To increase the performance, the joints of the device must be properly sealed.
Competent installation in compliance with all rules and recommendations is the key to effective operation of pumping equipment.
Purpose of pumps in a home heating system
People living in houses on the first floors know very well what coldness in a room is due to the fact that they have cooled batteries. This happens due to poor pressure in the heat supply systems, which is so necessary for everything to function normally and heat.
For heat carriers, the goal is to move along the pipe at high speed, carrying out heating, but due to poor pressure, the water moves slowly and cools down, and people in the apartment have cold batteries. Such problems also arise in private houses, when the pipe and the battery are cold at the farthest points of the heating systems.To solve the problem, you need to select a circulation pump for the heating system, which can work with forced air circulation for better heating.
Heating pump - it's simply a motor immersed in a coolant. During operation, the rotor rotates, which, at a certain pressure, makes water and other heated fluids move in systems at a certain speed.
The pump operating modes are different:
- Rapid heating of the house, which has cooled down while the owners were absent for a certain period of time.
- Slow heating with minimal costs.
Circulation pumps for heating are:
- Where the rotor is dry, where the device is half submerged in water;
- The rotor is of a wet type, where complete immersion in the liquid takes place, the noise of a working boiler is almost inaudible.
Operation and maintenance recommendations
During the operation of the circulation pump, various problems can arise. The design of WILO products is so simple that you can service them yourself without the help of professionals.
Frequently encountered problems and solutions:
- The shaft stopped rotating. These pumps run so quietly that it is impossible to immediately determine the cause of the breakdown. A special shaft rotation tester is used to identify the malfunction. If the scale shows no movement, the device must be disconnected from the power supply. This situation sometimes occurs during long periods of inactivity or when a foreign object gets inside the camera. In any case, you will have to disassemble the pump and unscrew the shaft, and then remove foreign particles from it.
- A creak appeared. This most often happens when the system heats up. A squeak is heard if the engine pulley starts to come into contact with the start plug. To eliminate this problem, it is enough to install a gasket on the plug. If this does not help, then the part of the pulley that rubs against the bushing can be sawed off, but not more than 3 mm.
- The pump stalls. Usually, the reason lies in the formed scale, which must be cleaned with a brush. If the system has a coarse filter, this problem practically does not arise.
- Pump vibration. This indicates that the bearings need to be replaced. The appearance of vibration can also indicate a drop in pressure, which should be increased. Sometimes it helps to reduce the viscosity of the coolant.
- Low water pressure. The problem indicates that the device is not connected correctly. This can happen if the filter is dirty, water pipes are faulty, or there is a large amount of glycol in the coolant.
These emergencies occur extremely rarely and most often due to improper connection of equipment. In any case, they can be fixed simply and without the use of special tools.
Installation
- Installing an expansion tank 75 cm higher than the system, this method is considered the most convenient, which saves in case of additional installation.
- Place the container in such a way that the tops of the piping are located in the injection area. This method should be used when the pipes are inclined towards the boiler. During operation, air bubbles move in streams of liquids with a pressure generated by the force of the pump.
- The highest point of the system is set at the point of the extended riser. In such a process, nuances cannot be dispensed with: pipelines are being reworked, which is a costly and complex process.
- This is followed by the turn of transferring expansion tanks and pipe parts to the place where the pump is suctioned, not far from the branch pipe. This is optimal for the operation of heat carriers and air circulation.
- Installation of circulation pumps in the supply pipes after the point of expansion tanks. In this method, all models of heating equipment are attached because of the high-temperature zone. It should be used for such models that will cope with the working conditions.
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We hope that the calculations and formulas, as well as other useful information, have solved your problems, and help you decide on the choice of the necessary parts for the home heating system. The Wilo circulation pump is very popular.
How to recognize a fake
WILO is a popular piece of equipment, so now you can often stumble upon a fake. If the product is original, it is covered by the warranty. A separate category is the Chinese WILO pumps, the service life of which is only 2-3 years, while the original is capable of serving up to 15 years.
How to visually identify a fake:
- The original packaging has a cube shape with high-quality glossy paint. Counterfeits are packed in a rectangular box.
- A sticker is attached to the original device; for fakes, the article, serial number and other data are printed.
- The serial number is not punched on the body of the counterfeit device.
- On the original, the arrow showing the direction of water movement is large, on Chinese products it is small.
In addition to visual qualities, attention should be paid to the internal structure.
Differences:
- The rotor and stator are marked on their housings with the serial number and date of manufacture.
- On original models, the top of the unit is detached from the rotor, making the unit repairable.
- The electronics must also be labeled.
These are the key points by which you can distinguish the original from the Chinese counterfeit.
