Which pump to choose for pumping water

The optimal sequence of actions in case of a problem with a part of the pipeline in the apartment

The proposed solutions require a lot of time to service the system. It is much easier to find the main cause and quickly eliminate it, thereby returning normal pressure. Sometimes you can find a problematic place on the water supply by a buzzing sound. At the problem point, where the flow of water slows down, a hum is created when the mixer is opened. If you listen, it is possible to immediately diagnose a malfunction, and not waste time on unnecessary maintenance.

When it was not possible to determine the cause by ear, then you should start servicing the system. First of all, you can clean aerator at the tip of the faucets. Before that, if you unscrew their flexible piping, you can see the current supplied to the water tap. If it is normal, then changing the faucet boxes and flushing the aerators will solve the problem.

This is what a clogged aerator looks like

When the reason is not in taps and flexible pipes, then you need to look for it at the level of the meter and other fittings. Ideally, immediately contact the management company to remove the seals from it. After dismantling them, you can start a full-fledged service that was not available before, since the seal wire prevents the disassembly of many important components.

Then you can proceed according to the following scheme:

1. Dismantle the coarse filter and wash or replace its mesh.
2. Check the pressure before and after the counter, it may be jammed and should be replaced.
3. In a similar way, evaluate the operation of the check valve and replace if necessary.
4. Carry out diagnostics of ball valves, in case of failure, change them.

If all else fails, then the reason is in the pipes, which will have to be changed. To do this, you need a tool, so you have to call a plumber. If you plan to install metal-plastic pipes, then soldering can be done on your own by renting equipment.This service is offered in many major cities.

Ball valve, oblique filter and counter - problem areas accumulating calcium salts

The best models of water pumps for increasing pressure in an apartment

Booster pump Wilo

If you need to install a reliable pump to increase the water pressure in the apartment, you should pay attention to Wilo products. In particular, the PB201EA model has a water-cooled type, and the shaft is made of stainless steel.

Wilo PB201EA wet rotor pump

The body of the unit is made of cast iron and treated with a special anti-corrosion coating. Bronze fittings provide a long service life. It is also worth noting that the PB201EA unit has silent operation, has automatic overheating protection and a long motor resource. The equipment is easy to mount, however, it should be remembered that only horizontal installation of this device is possible. Wilo PB201EA is also designed for pumping hot water.

Grundfos water booster pump

Among the models of pumping equipment, Grundfos products should be highlighted. All units have a long service life, withstand fairly large loads well, and also ensure long-term uninterrupted operation of plumbing systems.

Grundfos self-priming pumping station

Model MQ3-35 is a pumping station that can solve problems with water pressure in pipes. The installation is controlled automatically and does not require additional control. The design of the unit includes:

• hydraulic accumulator;
• electric motor;
• pressure switch;
• automatic protection unit;
• self-priming pump.

In addition, the unit is equipped with a water flow sensor, which ensures high efficiency in operation. The main advantages of the station include high wear resistance, long service life and silent operation.

Please note that the MQ3-35 unit is designed for cold water supply. Booster pumps are also equipped with relatively small storage tanks, which, however, are enough for domestic tasks.

An operating Grundfos pumping station in a water supply system

Comfort X15GR-15 air-cooled pump

In order for the circulation pump for water supply to work both in manual and automatic mode, we advise you to pay attention to the model of the Comfort X15GR-15 unit. The body of this device is made of stainless steel, so the unit is not afraid of moisture and can function in any conditions.

Comfort X15GR-15 air-cooled pump

An impeller is installed on the rotor, which provides excellent air cooling. The unit has a compact size, does not require special maintenance, and also consumes electricity economically. If necessary, it can be used to pump hot water streams. The disadvantages of the installation include the loud operation of the power unit.

Pump station Dzhileks Jumbo H-50H 70/50

The Jambo 70/50 H-50H pump station is equipped with a centrifugal pump unit, a horizontal accumulator and a sweat pressure switch. The design of the equipment has an ejector and an asynchronous electric motor, which ensure stable operation of the plant.

Jumbo 70/50 H-50H

The housing of the home water pumping station has an anti-corrosion coating.The automatic control unit ensures simple operation of the equipment, and the built-in overheating protection eliminates the possibility of damage to the unit. The disadvantages of the unit include loud work, and there is also no protection against "dry" running. For the device to function properly, it is recommended to install it in a room with good ventilation and low temperature.

Jemix W15GR-15A

Among the models of booster pumps with an air-cooled rotor, Jemix W15GR-15A should be highlighted. The body of the unit has increased strength, since it is made of cast iron. The components of the electric motor design are made of aluminum alloy, and the drive elements are made of highly durable plastic.

Jemix W15GR-15A

Pumping equipment is characterized by high performance, and can also be operated in wet areas. Manual and automatic control of the unit operation is possible. If necessary, the unit can be connected to hot water supply. Significant disadvantages include rapid heating of the elements of the device and noise.

How to choose a water pump for home heating

The pump for heating in a private house is selected according to several main parameters:

• performance and pressure;
• rotor type;
• Power consumption;
• Control type;
• Heat carrier temperature.

Let's see how water pumps are chosen for heating a private house.

performance and pressure

Correctly made calculations will help you choose the unit that best meets your needs, which means it will help save the family budget.

The performance of an electric water pump is its ability to move a certain amount of water per minute.The following formula is used for calculation - G=W/(∆t*C). Here C is the thermal capacity of the coolant, expressed in W * h / (kg * ° C), ∆t is the temperature difference in the return and supply pipes, W is the required heat output for your home.

The recommended temperature difference when using radiators is 20 degrees. Since water is usually used as a heat carrier, its heat capacity is 1.16 W * h / (kg * ° C). Thermal power is calculated for each household individually and is expressed in kilowatts. Substitute these values ​​into the formula and get the results.

The head is calculated according to the pressure loss in the system and is expressed in meters. Losses are calculated as follows - losses in pipes (150 Pa / m), as well as in other elements (boiler, water purification filters, radiators) are considered. All this is added and multiplied by a factor of 1.3 (provides a small margin of 30% for losses in fittings, bends, etc.). There are 9807 Pa in one meter, therefore, we divide the value obtained by summing up by 9807 and we get the necessary pressure.

Rotor type

Domestic heating uses wet rotor water pumps. They are characterized by a simple design, minimal noise and maintenance-free operation. They are also characterized by small dimensions. Lubrication and cooling in them is carried out using a coolant.

As for dry-type water pumps, they are not used in home heating. They are bulky, noisy, require cooling and periodic lubrication. They also need periodic replacement of seals.But their throughput is large - for this reason they are used in heating systems of multi-storey buildings and large industrial, administrative and utility buildings.

Power consumption

Least Power Consumption have the most modern water pumps with an energy class "A". Their disadvantage is the high cost, but it is better to invest once in order to get reasonable energy savings. In addition, expensive electric pumps have a lower noise level and a long service life.

Control type

Through a special application, you can get information about the operation of the device wherever you are.

Typically, the adjustment of rotation speed, performance and pressure is performed by a three-position switch. More advanced pumps are endowed with electronic control systems. They control the parameters of heating systems and save energy. The most advanced models are controlled wirelessly, directly from your smartphone.

Heat carrier temperature

Water pumps for heating a private house differ in their operating temperature range. Some models can withstand heating up to + 130-140 degrees, this is exactly what should be preferred - they will cope with any thermal loads.

As practice shows, operation at the maximum temperature is possible only for the shortest time, so having a solid supply will be a plus.

Other characteristics

When choosing a water pump for heating, it is necessary to pay attention to the maximum operating pressure for the selected model, the installation length (130 or 180 mm), the type of connection (flanged or coupling), the presence of an automatic air vent.Also pay attention to the brand - in no case do not buy cheap models from little-known developers. The water pump is not the part to save on

The water pump is not the part to save on.

Principles for selecting booster pumps

When evaluating high pressure water pumps, design features are usually taken into account:

• Units with a wet rotor are in-line (they are cut into a segment of the water supply in front of a draw-off point or a device that needs a pressure of a certain force). They do not require prevention - they are "self-lubricated" by what they pump. They are compact and quiet. But their productivity is relatively small, and one nuance must be taken into account during installation: the rotor axis of the electric drive of such a pump must be located strictly horizontally;
• Dry-rotary units are distinguished by a withdrawn power unit with its own cooling device - a fan, so they need to be additionally fixed to the walls. Such a unit is more productive than a wet-rotor one, and has the ability to serve more than a single water point. But he needs prevention - friction units need lubrication. When working, it makes a little noise.

When choosing a pump, evaluate in terms of performance, other characteristics and cost, units from prominent and long-standing brands on the market that are popular because of their good reputation.

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Which pump that increases water pressure is better according to the editors of Zuzako

Pumps that increase water pressure are divided into two groups. There are models with a dry rotor, and there are devices with a wet rotor.Both groups of devices have their advantages and disadvantages, so it's up to you to decide which is better to choose.

Wet rotor models are more compact and symmetrical. They work very quietly. The advantage of products of this type is that it is not necessary to regularly carry out preventive measures. The parts inside the device function by washing the shaft with water. The fastening process is very simple, since in this case a tie-in is made into the pipeline itself. However, the performance of wet rotor pumps is quite low. In addition, they have weak indicators of maximum water pressure. You should also know that the installation of such a device is carried out strictly in a horizontal plane with respect to the axis of the rotor.

Models with a dry rotor have an asymmetric appearance. In the case of these devices, cooling occurs due to air flows from the impeller. To mount the device to the wall, additional parts are required. Models with a dry rotor require constant preventive measures, which consist in the timely lubrication of rubbing parts. The noise level during operation of such products is quite high. But the performance of such devices is at a high level.

Pump for a private house

For a private house, it is best to choose either a submersible pump or a full-fledged pumping station, especially if the device must perform its functions year-round. In this case, you should carefully look at the products of Gileks and Whirlwind.

The pumping station consists of the pump itself, a hydraulic accumulator and automation. A hydraulic accumulator is necessary to accumulate water supplies so that the pump does not start working every time the water tap is opened.Automation, in turn, regulates the operation of the pump and activates it only when the pressure drops. For the stable operation of the pumping station, it is necessary that you have an uninterrupted supply of electricity.

Complete with pumping stations, as we already know, pumps are supplied. They also differ in their design and are either vortex or centrifugal.

In vortex models, suction occurs due to the operation of the blades inside the housing. The operation of such devices is almost silent, but they only lift water from a shallow depth. If you buy such a model, then you better install it directly in the house, as it is very sensitive to temperature changes.

Centrifugal models have a high level of noise during operation. But such devices carry out the rise of water from a great depth. In addition, such devices are insensitive to temperature changes. You can install a centrifugal apparatus in a special room near your home.

Apartment pump

For apartments, almost any model from the list above is suitable. A good option would be Grundfos products. In this case, it is worth choosing a pumping station if you live on the upper floors of an apartment building.

Pumps for apartments differ in the types of control. There are only 2 types, automatic and manual. With manual control, you will need to constantly monitor the operation of the device and adjust it. In the case of automatic control, a special sensor monitors the operation of the device.

To make the device work longer, you should additionally install a mechanical filter. Thus, you will protect it from foreign particles.It is best to install the pump in an apartment in a dry and heated place. In this case, it will work stably.

Following these recommendations, it will not be difficult for you to choose and buy your favorite model. Do not forget to also pre-watch reviews on the Internet for certain models to find out about interesting nuances. Happy shopping!

Types of booster pumps for water supply

Such pumps cannot create pressure from scratch, they increase the water pressure that exists in the system. This device raises the pressure by 1–3 atmospheres by pumping water after inserting it into an existing water supply. Pumps that increase water pressure differ in several ways.

By type of cooling

• Pumps with a dry rotor have a high efficiency. At the same time, the disadvantage of such devices is considered to be an increased noise level and large dimensions of the device.
• Glandless pumps are small in size and have a low noise level. But in work they are less effective, although they are 100% suitable for increasing the water pressure in the home water supply system. These devices are cooled by a stream of cold water flowing through the pump.

By installation method

• Horizontal pumps cut into water pipes that are located in the horizontal plane of the water supply system.
• Vertical devices are installed on the vertical risers of the system.
• Combined are installed in any position of the pipes of the water supply system.

By type of management

• Manual models are permanently switched off or on.Such a device is turned on when it is necessary to increase the pressure in the system. The main thing is that there is a small pressure, because in the absence of water, the pump can simply burn out from overheating. Switching off is done manually by the owner, after carrying out one-time operations.
• With automatic control, an installed special sensor gives a signal to turn on the pump when the need arises. In the absence of water in the system, the same sensor turns off the pump, which avoids overheating and failure.
• In combined models, switching between operating modes occurs using a special switch.

By availability of speeds

• Single-speed models can pump water at one shaft speed.
• Multi-speed operate with different intensity, which depends on the required amount of water flow.

By type of constructive solution

• Vortex units have high performance, but high noise levels and require special piping.
• Embedded structures are compact in size, but have a low level of performance. They are usually built into the supply pipeline.

2 Advantages and purpose of booster pumps

Pumps that pump water are used to increase the water pressure in front of the points at which the water is parsed. In other words, a booster pump is used in cases where the water pressure in a residential area is lower than desired. To do this, the device is connected to the central water supply system.

In the industrial field, booster pumps are also used. but the dimensions of such installations at enterprises far exceed the dimensions of products designed to increase pressure in domestic conditions.At the same time, the booster pump in industry is often operated only in cases of emergency situations, for example, when it becomes necessary to extinguish a fire.

Places of installation of boosters water pumps

The advantages of such units include:

• compactness;
• low noise level during operation;
• the ability to pump water with high power;
• relatively cheap cost;
• reliability.

2.1 Characteristics and types

This type of equipment is divided according to the type of construction, and therefore, devices with different designs can differ significantly from each other. In particular, according to the type of device, pumps that increase the pressure can be in the form of self-priming pumping stations, or they can be made in the form of circulation products that increase the pressure level in the pipeline.

Self-priming units consist of a hydraulic accumulator and a surface pump, which has the function of liquid suction. Such equipment is capable of lifting liquid, including in cases where it does not reach the floor on which you live at all. The water accumulator performs the function of adjusting the level of pressure in the plumbing system. This is achieved by the check valves and the air membrane that the device is equipped with. Pressure adjustment is carried out by means of a relay installed in the accumulator, which, in particular, is responsible for automating the entire process.

Self-priming units consume more electricity than circulation pumps. The minimum consumption of such a unit starts from 2 kW per hour, but this indicator pays off with the power that they possess.So, for example, when consuming two kilowatts per hour, the pump is able to lift water from a depth of 12 meters, doing it efficiently and quickly. The cost of such devices is often lower than circulation pumps.

Circulation plants are divided into those that work with cold water and those that pump hot liquid. For pumping cold water, simple modifications are made, made of inexpensive plastic. They do not withstand prolonged contact with hot water and can pump liquid with temperatures up to +40 degrees.

Models designed to work with hot liquid are most often used for installation in hot water or heating systems. Such products are made from more expensive metals, such as stainless steel and high quality rubber gaskets.

Circulating devices consume several times less electricity than pumping self-priming stations, however, their power, respectively, is much lower. They in most cases require no more electricity than an electric light bulb. Circulation pumps increase pressure by 2-4 atmospheres and can pump around 2-4 cubic meters of liquid per hour. At the same time, some models are equipped with more powerful engines, and therefore, their performance indicators may be higher.

Circulation pump for pumping water

Such circulation pumps are called because they contribute to the formation of circulation in plumbing systems. These products are small and very compact. For installation, they are cut into certain sections of the pipeline.

Where can I buy a pump to increase water pressure - average prices

Table 2.Prices for some pump models

Images	Machine model	Average price (as of March 2018), RUB
	Wilo PB201EA	7200
	Grundfos MQ 3-35	18900
	Grundfos Scala2 3-45	21700
	Grundfos JP 6	16300
	Comfort X15GR-15	2800
	Aquario AC 15/9-160	4400
	Jemix W15GR-15A	3600

Dear readers of our online magazine! We invite you to take part in the discussion of methods for installing booster pumping equipment and share your experience with other people.

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Features of installing a device for pressure in the water supply

The installation location of the pressure boosting equipment depends on the specific situation. To ensure the normal operation of the faucet and shower head, it is enough to mount it at the outlet of the storage tank. For devices that are more demanding on pressure (washing machine, dishwasher, water heater), it is better to install the pump in front of them.

However, installing several low-power pumps at once is not the best option. In this case, it is worth installing more powerful models that can stabilize the pressure at high flow rates.

The installation of a pump to increase the pressure in the water supply of an apartment or a private house is performed in the following sequence:

First, mark the pipe on which the equipment will be installed, taking into account the length of the device and fittings.
Then the water supply is shut off in the room.
After that, in the marked places, the pipe is cut.
At the ends of the pipeline, an external thread is cut.
Then adapters with an internal thread are mounted on the pipe.
Fittings from the kit with the pump are screwed into the installed adapters

For better sealing, wind FUM tape around the thread.
An increasing device is mounted, while it is necessary to follow the instructions of the arrow on the body of the device, showing the direction of water flow.
After that, from the electrical panel to the device, you need to stretch a three-core cable and, preferably, make a separate outlet, and it is better to connect the device through a separate RCD.
Then the pump must be turned on and its operation checked, paying attention to the absence of leaks at the joints. Tighten the fittings if necessary.

Proper installation of the device will provide water needs for many years. Adhere to the following recommendations during the installation of equipment:

• in order for the pump to work longer, it is better to install a mechanical filter at the inlet to it. So you can protect the device from getting into it unwanted particles;
• it is better to install the unit in a dry and heated room, since low temperatures can freeze the liquid in the device, which will disable it;
• vibration from the operation of the equipment, over time, can loosen the fasteners, causing a leak, so sometimes you need to check the connections for leaks.

A properly selected and correctly installed device can solve the problem of low pressure in the water supply.

Connection diagram - recommendations

When determining the location for the optimal location of the pump, it is guided by the following considerations:

1. For the correct operation of household appliances in the form of a boiler, washing machine or dishwasher, the pump is placed directly in front of them.
2. If the house has a storage tank located in the attic, pumping is placed at its exit.
3. As with the installation of circulation units, in the event of an electric pump failure or removal for repair and maintenance work, a bypass with a shut-off ball valve is provided parallel to it.
4. When installing a pump in apartment buildings, it is likely to leave residents without water in the riser, dramatically increasing the volume of its consumption when the pumping is turned on. In this situation, it is necessary to provide for the placement of storage tanks in the apartment, which are more practical to hang from the ceiling.
5. Many, when installing more powerful units in a line, do not get the desired result indicated in the passport data. Not knowing the laws of hydrodynamics, they do not take into account the increased hydraulic losses in the pipeline with an increase in the volume of pumped liquid - to reduce them, it is necessary to change the pipes to a larger diameter.

Rice. 14 Installation of booster pumps in the internal water supply

Booster electric pumps are usually installed in apartments or private houses when using public water supply networks, whose services do not fulfill their obligations to create working pressure in the system. Standard wet rotor household units increase the pressure by an average of 0.9 atm. To obtain a higher figure, it is necessary to install a centrifugal electric pump, a pumping station or an installation with frequency control of the impeller rotation speed (the best, but too expensive option).

What to consider when choosing a unit for an apartment

When choosing equipment, you must certainly take into account several significant points:

• a certain problem;
• properties (capacity and generated head);
• authority of the manufacturer;
• the dimensions of the building in which it is planned to determine the equipment;
• the necessary amount that is planned to be spent on obtaining it.

Without knowledge of the required performance and pressure, it is very difficult to make the right choice. It is better to entrust all the necessary calculations to a professional. Numerous companies that sell such equipment provide such a service absolutely free of charge.

If you just need to slightly increase the pressure in the system by about 1.5 atmospheres, then a small-sized pump that you can simply buy and embed into the pipe will fit perfectly. Some experts consider the construction of an expensive and strong pump unnecessary. In their opinion, the most rational option is a pair of devices of lesser power, which are connected directly in front of the parsing points and home devices, the work of which needs to be optimized.

Today, it is not difficult to purchase pumping equipment for raising water pressure. Since it is freely represented in various shopping centers for household appliances, online stores, and construction markets. However, the best solution would be to visit a branded salon, where there is the most extensive choice, it is possible to obtain information from a professional. After that, you will be provided with a mandatory warranty service, which is especially important if the consumer purchases an expensive model.

Some Helpful Tips

Not always a booster pump is needed to solve the problem with low water pressure in the system. To begin with, it does not hurt to diagnose the condition of the water pipes.Their cleaning or complete replacement can restore normal pressure without additional equipment.

To understand that the problem is in the poor condition of the water pipes, sometimes it is enough to ask neighbors who live in apartments on the same floor or higher. If they have normal pressure, you almost certainly need to clean the pipes.

If the picture is the same for everyone, there may be more serious problems affecting the entire plumbing system of the house and even the area. In high-rise buildings, water sometimes simply does not flow to the upper floors. This requires high-powered and rather expensive equipment.

It makes sense to cooperate with other tenants to share the costs. It is a good idea to demand that the organization that receives the payment for the water supply solve the problem, since it is they who must ensure the supply of water to the consumer.

The lack of water on the upper floors is a violation of fire safety requirements

When communicating with the water service provider, it is worth paying attention to this point and mention the possibility of litigation due to non-compliance with the law

It is best to entrust the installation of equipment in an apartment building to a full-time plumber of the management company. He is also more familiar with the system, and will be held responsible in case of leaks or breakdowns caused by poor-quality installation of equipment.

The device and principle of operation of the pump to increase water pressure

Depending on the design of the impeller and performance, the principle of operation of booster systems may have some distinctive features.

Circulation centrifugal pump

The principle of operation of the pump is based on the creation of excess pressure at the periphery with simultaneous discharge in the center of the working area. The liquid is ejected through the outlet pipe under the action of the resulting excess pressure, and suction occurs due to the resulting vacuum.

Centrifugal self-priming station

The principle of operation of such systems is similar to the principle of operation of a centrifugal circulation pump, the main differences are in the power of the electric motor, overall dimensions and the presence of a hydraulic accumulator, which significantly increases the stability of the system.

Whirlwind self-priming station

Due to their design features, vortex pumping stations are able to provide outlet pressure 3-5 times higher than centrifugal counterparts and are not sensitive to airing. However, at the same time, such installations require a high degree of preliminary cleaning of the working environment and have a low efficiency.

In addition to technical characteristics, correct installation is important for ensuring high efficiency of pumping units.

Causes of low water pressure

The circumstances leading to a drop in pressure in the water supply network can be both objective, resulting from natural processes, and subjective, associated with errors in design, calculations, and selection of equipment. They can be formulated as follows:

1. Increased water abstraction associated with high seasonal consumption. This happens in the summer when private sector consumers use large amounts of water to irrigate vegetable gardens.
2. Faulty or underpowered pump at distribution station.
3. Clogged pipes.In the case of using metal water pipes, this may be rust mixed with naturally occurring lime insoluble deposits.
4. Leaks of water on gusts or leaks in the water supply. They are formed mainly at the joints of pipes or corrode their walls through and through. The only way to avoid such defects is to carry out periodic inspections and current repairs strictly according to the developed schedule.
5. Insufficient capacity of electrical networks feeding the substation.

For the private sector, which uses individual water intake in the form of wells or wells, this becomes possible due to a gradual decrease in their flow rate as a result of silting of sources, clogging of filters.

The most unpleasant thing is that the factors that reduce the pressure in the water supply system do not occur at one moment, their influence is significantly extended over time and is not noticeable. It is obvious that constant control over the throughput of the pipeline is needed.