WILO circulation pumps: overview of the model range, installation and maintenance tips

The key element of the heating system is the circulation pump. With the help of this equipment, heat is evenly distributed throughout the room. Depending on the quality of the device, the water pressure and the efficiency of its heating will change.

Not all users know how to choose these devices correctly and 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.

Briefly about the Vilo company

The WILO Group is the world's leading manufacturer of pumping equipment used in households, utilities and industry. The company was founded back in 1872, when its founder, Louis Uplander, began producing hardware.

WILO is currently a leader in digital innovation. The company compares favorably with its 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 VILO RUS division, founded in 1997, operates on the domestic market. Now it includes 30 branches. In 2016, we opened our own service center, which specializes in repairing WILO equipment.

Factory VILO RUS

Construction in the Moscow region began in 2013 with the purchase of a land plot. In the fall of 2014, the foundation stone of the plant was laid. The volume of investments in the new production of VILO RUS amounted to 35 million euros. It is planned to create about 400 jobs at the plant.

The project and the plant building were awarded the highest rating of the GREEN ZOOM professional energy efficiency system - “Platinum Certificate”. In May 2021, the production and warehouse complex "VILO RUS" was awarded the "Gold Certificate of the international certification system LEED-NC (New Construction)". The facility scored the maximum number of points in the following sections: “Water Efficiency”, “Innovation”, “Regional Features”. Based on the certification results, the facility scored 64 points. According to the results of energy modeling, the energy efficiency of the facility was 25.09%.

The plant is located at 50 km of the Gorky Highway (M7 Moscow - Nizhny Novgorod highway). On an area of ​​5.5 hectares there is a production (8500 sq.m.), a logistics center (7000 sq.m.) and an administrative and office building (6110 sq.m.). The plant has 21 assembly lines, 10 test pipelines for submersible pumps and the largest test bench in Europe with a pool depth of 12 m and a capacity of about 1000 cubic meters. m.

Features of WILO brand pumps

The company's main goal is to create equipment that will make users' lives more comfortable. It is for this reason that all manufactured devices are characterized by reliability. Pumps can have different designs, applications and functionality. The entire model range has the main advantage of energy efficiency, which allows you to save money on electricity.

Advantages

In modern heating systems, natural circulation is most often used. But there are situations when forced transportation of coolant is required. To achieve this task, you need to know how to choose the right pumping equipment. The choice is influenced by many factors, 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 performance advantages:

1. Has no heat losses.
2. Corrosion-resistant materials are used to manufacture equipment components.
3. The system is controlled automatically. As a rule, 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.
4. Even if a high-power model is selected, it will work almost silently.
5. Compact sizes. This allows you to install the pump in the desired location without much difficulty.
6. It is connected using spring terminals, which does not take much effort and time.
7. 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 they require electricity to operate fully. Therefore, it is not recommended to purchase them for areas where there are problems with the supply of electric current.

The devices are suitable for both heating systems and air conditioning. The model range 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 the range of WILO circulation pumps

circulation pumps WILO

Booster pumps "Wilo" series PB: PB-088EA and PB-201 EA

Thanks to booster technology, the problem of low pressure in the water main has long since become obsolete. By increasing the pressure in the water supply network, they ensure uninterrupted operation of water heating devices and the functioning of bathrooms. The pumps in question are externally and functionally identical. The main difference is the diameter of the impellers. Designed exclusively for domestic use. Distillation of heavily contaminated water with large inclusions is not permissible. The maximum t 0C mark, depending on the model, is 60-80 0.

Advantages:

• corrosion-resistant cast iron and plastic parts;
• withstand minor (up to 10%) voltage surges;
• operation in manual and automatic modes;
• thermally protected engine with a production life of 10 years;
• built-in flow sensor, instantly triggered when the tap is unscrewed;
• quick installation - each pump comes with union nuts and gaskets for installation.

Technical characteristics of "Vilo" PB-088 EA/ PB-201 EA:

• Torque – 2.9 thousand rpm;
• Engine power – 70/200 W;
• The cross-section of the pressure/outlet pipe is 15/25 mm;
• Outlet pipe diameter -
• Pressure – 8/15 m;
• Productivity – 2.1/3.3 m3/h;
• Self-priming – 8 m.

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. The 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:

1. A closed system of large-diameter communications is being constructed. Here you need to take into account that the materials will not be cheap.
2. A circulation pump is added to the system.

A more economical option is the second one. It will improve the circulation of coolant in the system, which will increase heating efficiency. Modern pumping units produced by the WILO brand come in two types, the features of which will be discussed below.

With dry rotor

Such devices are used in long-distance heating systems. Between the pump motor and the rotor there are sealing rings, 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 dry rotor pumps is their 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 liquid that could damage the O-rings.

With wet rotor

With the help of such models, country houses where heating systems are of short extent are heated. 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 coolant for the mechanism.

When installing such pumps, it is important that their shaft is located in a horizontal plane - only under such conditions will water always remain in the housing.

Glandless rotor pumps have the following advantages:

• almost no noise during operation;
• have a built-in mechanism for switching the rotor rotation speed;
• are reliable;
• characterized by a long service life;
• do not require additional maintenance;
• easy to set up and repair.

The efficiency of these installations does not exceed 50%.

Pressure equipment for water supply

Self-priming pumping station "Wilo" PW-175EA

Like other pumping stations from this manufacturer, it consists of a self-priming centrifugal pump, a pressure switch, a pressure gauge, and a hydraulic accumulator. It has a reliable electronic module that allows operation without user intervention. Designed for clean drinking water, but also allows for the distillation of rainwater. Without immersion in a water tank, it pumps liquid from a depth of up to 8 m.

Peculiarities:

• shutdown in the absence of water consumption;
• heat-protected motor;
• capacious hydraulic receiver;
• small size and light weight, simplifying installation and transportation;
• equipped with a high-pressure pump pumping water from a depth of 8 m.

Specifications:

• Throughput – 2.2 m3/h;
• Head height – 40 m;
• Power – 350 W;
• Pressure – 4 bar;
• Receiver – 2 l;
• The diameter of the inlet/outlet pipes is 1 inch.

Pumping stations "Vilo" series Jet FWJ (left) and Jet HWJ

Their functional purpose is similar to the previous modification.
Used for irrigation and drinking water supply. They operate automatically. They differ from each other by the presence of a membrane receiver (only HWJ has it), which can be supplied in volumes of 20 and 50 liters. Advantages:

• anti-corrosion material design (steel, noril);
• overheat fuse;
• the ability to adjust the pressure level at which it will turn on/off. water pump;
• two-way connection - from the suction and pressure sides;
• ease of installation;
• do not require regular maintenance.

Operating parameters "Vilo" FWJ/HWJ (average for the series):

• Self-priming – 8 m;
• Jet height – 50 m;
• Productivity – 5 m3/h;
• Weight – 11.7/18 kg.

Water pump "Wilo" DRAIN TMW-32/8

The model is an automatic submersible pump with a stirring device. Can be used in both stationary and mobile conditions. Structurally, it is designed in such a way that a turbulence is continuously formed in the suction zone, which promotes the drainage of sewer pits, abandoned mines, pits in the most hygienic way today: without odor and sediment formation.

Peculiarities:

• electric motor with a dry rotor and a cooling circuit that prevents overheating;
• end and lip seals of the impeller and motor;
• vertical installation;
• resistance to short-term (3 min) increase in temperature 0C of the working environment up to +90;
• integrated float switch and check valve;
• Built-in Twister function that creates swirls.

Working properties:

• Traction – 450 W;
• Immersion – up to 3 m;
• The cross-section of the pressure pipe is ¼ inch;
• Network cable – 10 m;
• Pump D – 16.5 cm;
• Weight – 4.7 kg.

Types of pumps by number of speeds

The design of each pump provides a certain number of speeds. The performance of the equipment depends on this parameter. WILO products are available in single and multi-speed, allowing you to choose the product for your specific system.

Single speed

Such models are not regulated in terms of operating speed. 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 the design does not contain additional elements - regulators. This option is convenient in situations where the pump must operate at maximum power - as a rule, these are common cases, which is why such products are very popular.

Multi-speed

Thanks to the presence of several speeds, the user can choose the intensity of operation 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 operate. More speeds are not found.

Marking

For each model of manufactured equipment, in addition to the instructions, a special plate is attached, on which all the necessary technical designations are applied. If you know how to read them, it becomes clear for what purpose the pump is used, its performance characteristics and much more.

Several models of WILO pumps are currently available:

• Star-RS (RSL, RSD) - heating systems, air conditioning, refrigeration;
• 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, let's look at an example.

WILO Star-XX 25/1-5 YY:

• Star — equipment type;
• eXX - for which systems it is suitable;
• 25 - indicator of the internal diameter of the pipe;
• 1–5 - possible pressure, 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 labeling:

• brand logo;
• product number and production date;
• model;
• Class F - indicator of resistance to heating of the coolant;
• IP - pump protection level;
• PN - permissible operating pressure;
• Tmax—maximum operating temperature level;
• SV0 — availability of software (if additional functionality is connected, then this parameter is of great importance);
• P1max, P1min - permissible temperature ranges;
• Imax, Imin - current required for operation;
• 1–230 V - voltage.

These designations are the most common and, based only on them, you can already make the right choice of equipment. All other characteristics are indicated in the product passport.

Two main characteristics of a circulation pump

With a long list of technical characteristics of heat pumps, there are two main ones. This is the diameter of the connection pipes and the power of the “accelerator”. These two numbers are considered decisive and are indicated in the name.

Connection pipe diameter

The most important parameter for pump installation, especially with already installed heating systems. This is a numerical value indicated in millimeters and indicating the diameter of the heating pipes that can be connected to the inlet/outlet pipes.

Please note that for connection to the body pipes, taps are made with threaded threads

As a rule, choose a pump

Many users do not know what equipment parameters to pay attention to when choosing.

Many factors affecting the operation of the heating system are taken into account:

1. Required amount of heat. There are many important conditions at play here: room area, ceiling height, number of storeys, number of windows and doors, as well as the material used to make them. The insulation factor of the basement and attic is also taken into account.
2. Climatic conditions of the area. When choosing, you should take into account the minimum air temperature, frequency of wind loads and other features.
3. Design of a heated structure. The thickness and material of the walls, floors and ceilings are taken into account. The presence of a ventilation system in the house is of no small importance.

In short, there are many criteria that should be taken into account when selecting effective equipment. If skills and knowledge are not enough, you should contact specialists.

Also taken into account: the number of installed batteries, boiler power, 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 at the design stage of the house.

If the living area is small (less than 3000 m2), then this makes the choice easier:

• 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.

Advantages of devices

Thanks to the special properties of the Wilo pump, the efficiency of the heating system increases significantly. In this case, thin pipes can be used, which, in turn, helps reduce material and fuel costs. Also, when using a pump, the volume of carbon dioxide that is released into the atmosphere is reduced, and the daily consumption of electrical energy is no more than 250 W.

Of course, such a device is not cheap. You will have to pay a large amount for its purchase, but the cost will certainly pay off later when used due to energy savings and durability. The device will not require repair for a long time.

Vilo pumps have many positive properties.

During operation, the working part of the pump is constantly washed by the pumped liquid, so there is no need for regular maintenance of the unit

The most important of them are the following:

1. After water evaporates, there is no heat loss.
2. The operation of the system can be controlled automatically. The device has a liquid crystal screen, a built-in thermostat and other elements that allow control. You can also manually switch the speed of rotation of the working shaft.
3. Compared to many circulation pumps from other brands, Wilo devices are quite compact and therefore do not take up much space.
4. The motor and rotor have a multi-stage protection system that helps prevent failure due to sudden surges in voltage in the electrical network.
5. The motor operates silently, making it possible to install the device in residential buildings.

Wilo pumps are used in small rooms of several hundred square meters. The selection is carried out according to such parameters as power, volume of circulated water, room area and pressure height. The last parameter is the most important.

You can see how to distinguish an original pump from a fake in the following video:

Review of popular models and their costs

The WILO brand produces a wide range of pumping equipment for heating country houses. All models differ in many parameters: power, pressure, coolant temperature and other characteristics.

Star

The equipment in this line is used in domestic conditions and is suitable for organizing a heating system in a small house.

There are two series:

1. Star RS . This includes 12 models, labeled from 15-4 to 30-8. Heat-resistant cast iron is used to make the body. Parts that come into contact with the coolant during operation are made of stainless steel. Star RS adjustment is manual, and these pumps allow you to create pressure up to 10 bar. The maximum throughput is 6 m3 per hour.
2. 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 equipped with a special switch necessary for adjusting electric motors. The weight of the device is only 5 kg, but it is capable of providing the required pressure for a house with an area of ​​750 m2.

We should also highlight the model 15 WILO Star Z Nova, which is used for recirculation in hot water supply systems. The pressure and performance of each model vary. The price of these devices starts at 3,600 rubles.

Top

This category of pumps is used in heating systems of large cottages and apartment buildings. Thanks 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 operating pressure is 10 bar.

The following models are produced:

1. R.L. and S. _ These are the most productive devices with a wet rotor, which are equipped with one or two motors. Connect to a single- or three-phase network. The three-speed pump is equipped with a mechanical switch.
2. Z. _ By purchasing this unit, you don’t 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 deposits. There are no strict requirements in terms of installation location.
3. TOP . These are basic devices, the number of which is more than 50. They differ in flange size and performance.

In a word, if you need an appliance for a large home, 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, which is used for control. The screen displays the necessary information about the operation of the device. The line was created taking into account the fact that the pumps will be installed in large heating systems. Connection to a boiler with a power of 25 kW or more is possible.

Main 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 operating parameters, for which the controller must be connected to a room thermostat.

Among the list of models there are 2 interesting ones: one with a bronze body and increased productivity (16 bar). This line performs best in energy-saving systems. The cost starts from 10,485 rubles.

Yonos

These are models equipped with an electronic control unit and air protection. An additional function is to remove solid deposits from liquids. Switching modes is mechanical. If you need to achieve efficiency, the device is switched to automatic mode. The display panel displays operating information: what is the pressure in the system, how much electricity does the pump consume, and so on.

This series is one of the latest 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.

Which pump is best for heating a private house?

The modern market offers us to buy a pump for heating a private home at a variety of prices, in the most unusual colors, with the best characteristics, and simply in a huge assortment. We will remain conservative on this issue and traditionally arrange the products in order: Grundfos, Wilo, DAB. All three manufacturers offer excellent quality, and the model range and characteristics allow you to accurately select equipment for any designed heating system. Which one is better?, let's leave this debate for those who like to endlessly find out what is better: samsung or iphone, mercedes or bmw, or finally blondes or brunettes...

Installation features

Installation can be done using different methods.

There are 2 schemes:

1. Single-pipe. The coolant is constantly consumed, while temperature differences are insignificant.
2. Two-pipe. With high drops and variable flow rates.

Before starting installation work, study the instructions for the product in detail. It is also important to choose the installation location, namely, there must be access to the device for maintenance. Most often, equipment of this type 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:

1. The remaining liquid is drained from the system.
2. The pipeline is being cleaned.
3. The pump itself and auxiliary fittings are being installed.
4. Liquid is poured into the system, from which excess air is removed.

For proper installation, circuit preparation is required. Thanks to it, the device will be able to continue working even if the power is turned off. The diameter of the main pipe and the bypass must be different.

By following these recommendations, even a novice master can handle the installation:

1. To achieve maximum performance, the shaft of the device must be in a horizontal plane.
2. The terminal box is installed on top.
3. There should be a ball valve on each side of the pump, which is necessary for subsequent maintenance.
4. The system must have a filter that removes small particles from the coolant.
5. There should be a valve on top of the bypass line to remove air.
6. The presence of shut-off valves is necessary to prevent water from leaking.
7. An expansion tank is provided for an open heating system.
8. To improve performance, the connection points of the device must be properly sealed.

Proper installation in compliance with all rules and recommendations is the key to efficient operation of pumping equipment.

Recommendations for operation and maintenance

Various problems may arise during operation of the circulation pump. The design of WILO products is so simple that you can service them yourself, without the help of professionals.

Frequently encountered problems and ways to solve them:

1. The shaft stopped rotating. These pumps operate so quietly that it is impossible to immediately determine the cause of the breakdown. To identify a malfunction, a special shaft rotation tester is used. 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.
2. A creak appeared. Most often this happens when the system heats up. A squeaking sound is heard when the engine pulley begins to come into contact with the starter 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.
3. The pump stalls. Usually the reason lies in the formation of scale, which needs to be cleaned with a brush. If the system has a coarse filter, this problem practically does not arise.
4. Pump vibration. This indicates that the bearings need to be replaced. The appearance of vibration may also indicate a drop in pressure, which should be increased. Sometimes reducing the viscosity of the coolant helps.
5. Low water pressure. The problem indicates that the device is not connected correctly. This can happen if the filter is dirty, the water pipes are faulty, or there is a large amount of glycol in the coolant.

These emergency situations occur extremely rarely and are most often due to improper connection of equipment. In any case, they can be fixed simply and without the use of special tools.

Areas of application

The Wilo brand produces pumps designed for different purposes and therefore having different characteristics.

With the help of such a pump, you can water the beds directly from a well, borehole or the nearest body of water.

The scope of their application is wide and varied:

1. Wilo devices are used in heating systems in closed circuits.
2. They are used in the water supply of private houses and in wells for water extraction.
3. Such pumps are also suitable for pumping out groundwater when creating basements and cellars.
4. They are also used on construction sites when working with contaminated water.
5. Owners of private suburban areas have found good use for them, in particular those who grow plants on their plots.

You can connect the device yourself without any problems. For this purpose, it is equipped with special spring terminals. It does not have a fan, so there is virtually no noise during operation.

How to recognize a fake

WILO is a popular equipment, so now you can often stumble upon a fake. If the product is original, it is covered by a warranty. A separate category is the Chinese WILO pumps, whose service life is only 2–3 years, while the original can last up to 15 years.

How to visually identify a fake:

1. The original packaging has a cubic shape with high-quality glossy paint. Fakes are placed in a rectangular box.
2. A sticker is attached to the original device; for fakes, the article number, serial number and other data are printed.
3. The serial number is not stamped on the body of the counterfeit device.
4. On the original the arrow showing the direction of water movement is large, on Chinese products it is small.

In addition to visual qualities, you should also pay attention to the internal design.

Differences:

1. The rotor and stator are marked on their housings, indicating the serial number and date of manufacture.
2. In original models, the upper part of the device is detached from the rotor, which makes the device repairable.
3. Electronics must also be marked.

These are the key points by which you can distinguish the original from a Chinese fake.