Choosing a circulation pump for hot water

To ensure the comfort and coziness in the room, it is impossible to do without hot water, and this applies not only to residential buildings, but enterprises, offices and other institutions. For circulation, a special system is used with a device that performs its task at the highest level.

This unit allows you to quickly get hot water from the tap, without it everything would be much slower.As for costs, they do not exceed the cost of a conventional boiler from reputable manufacturers.

Before purchasing equipment, its features, main technical and operational characteristics should be studied, advantages should be analyzed in order to make the right choice. The circulation pump for hot water is a device that drives the water in the pipeline. In addition, the device is designed to increase the pressure in the trunk system to a certain level.

Such units are installed in multi-storey buildings in order to receive liquid from the tap with the same temperature.. But it should be noted that the pump is also required to maintain pressure if it is necessary to disassemble it at peak times. If several taps are open at the same time, it is necessary to observe the same pressure everywhere as well as the temperature. A distinctive feature of the pump is its small size, so it is quite simple to mount it, and you can cope with this task on your own without outside help. The recirculation unit does not consume much electricity, so it can be called economically profitable.The equipment is manufactured according to all necessary standards.

The recirculator works on the same principle as the pumps used in heating systems. The main goal of the installation is to stabilize and increase the pressure of water supply, which is not enough. The closed equipment system consists of the following elements:

• accumulative capacity;
• regulating and stop valves;
• pumping device;
• contours that connect to water points.

The tank is filled with hot water. The temperature range can reach +100 degrees. The pump must create the desired pressure, thereby causing a certain volume of fluid to circulate continuously. As soon as the consumer opens the tap, he receives hot water, which is supplied under pressure. This allows you to use the bath and shower.

The market offers a wide range of models of such equipment. Many devices have an electric motor. All moving elements of the mechanism are completely in the aquatic environment. This “wet” design has several advantages, such as:

• the need for maintenance is virtually absent;
• the equipment works without excessive noise;
• consumes little power.

The water unit consists of a liner, a motor stator, a pump casing, which has two mounting holes, bearings and an impeller with blades. Parts are made of stainless steel, so do not corrode. The wet rotor has a number of features, the first of which is low efficiency. It is important to note that the liquid must be clear without additional impurities, so you will need to install filters. Such a device does not tolerate dry running. It should always be in the aquatic environment, then the pumping effect is preserved.

Such equipment requires the use of conventional oil lubrication to reduce friction in the bearings. The engine chamber is separated from the fluid due to the gland on the shaft. As for the case, it is cooled by air. The features of the unit include large size and weight. This provides more power, so often such a device is used in industrial applications.Efficiency is high, it emits noise, so the unit is almost never used in individual houses. Install such a device can be in any place, which facilitates the task.

Maintaining the circulation of hot liquid is always permissible, although it is not always economically justified. Many would agree that there is not always a need for such water, so it is not necessary for the pump to work non-stop. If it is correct to arrange the pipes, as well as to equip the insulation, the liquid will not immediately cool. As for the cash costs, this will not affect them, since the recycling pumps are inexpensive to maintain.

To choose the right pump for hot water, you need to understand the parameters and characteristics, as well as listen to the recommendations of experts who will help you make a bargain.

The main indicators include the power of the unit. This characteristic indicates the amount of electricity that will be consumed by the device. The power also affects the performance of the device, which means the amount of water transferred through the pipeline over a certain period of time.Various factors affect the operation of the instrument.

You can not buy an unit whose performance exceeds the required value. In this case, there will be an overspending of electricity. Models need to be considered only from proven and reputable manufacturers.

It is important to study the reviews, learn the opinions of customers, compare the characteristics. If you need a pump to install it in the bath, you do not need to take a powerful unit, since it will not be used continuously. It is enough to pay attention to compact devices with a wet rotor, of course, it all depends on the water tank that needs to be filled.

Capacity is determined by the diameter of the pipeline.The bigger it is, the stronger the device will be. If you plan to use hot water seasonally, then you should not explore such options.

Household appliances are most in demand and optimally suited for use in the home. They have special sensors to save water with energy, a timer, a thermostat, and an autotune set. It should be noted that the pump with a dry rotor is equipped with a fan for cooling, it produces additional noise.

The mini-device is suitable for a small apartment, where you do not need to supply a large amount of hot water. It is capable of pumping fluid and without any problems feed it into the system.

Before you start searching for pumping equipment, you must correctly calculate the device parameters. Only then can you decide on the purchase and invest wisely. Such data include the load of the water supply system, as well as sufficient flow force. An important point is taking into account the number of cranes that can be simultaneously turned on. It is necessary to create the same pressure of the circulation pump, so that the pressure everywhere will be constant.

If we talk about the average consumption of water at one point, it is about one hundred and eighty liters per hour. If the house or apartment has two bathrooms and a kitchen where there are taps, the best choice would be to install a device that has a throughput of at least 0.7 cubic meters per hour. We must not forget about the hydraulic resistance of the overall system. Pressure and pressure are influenced by the length with the height of the pipeline, so these figures also need to be clarified. The water column in 0.6 meters uses 10 linear meters of the contour. The manufacturer always adds technical documentation to each model and variety of pumping equipment, so it’s worth exploring all the indicators and descriptions.

Thanks to such calculations, you can get the average heat consumption of a hot liquid through a circulating pump, which will help you quickly make a choice and facilitate the purchase. Of course, a device of an industrial type is suitable for pumping water at a large enterprise, and for the house - several other models.

Today, calculations can be made online thanks to electronic calculators, where relevant indicators are entered, which speeds up the solution of the problem. If the pump is selected for an apartment building or a cottage with a large area, such calculations are carried out only by qualified specialists of design and installation organizations, as they are responsible for the performance of the entire system.

To install, you will need to do the following steps:

• choose the place of installation of the circulation device. The module should be installed on the return, which will prevent the ingress of air, which in turn will reduce the functionality of the entire system;
• A check valve must be installed between the pump and the storage tank;
• shut-off cranes are installed before and after the station, their number depends on the needs;
• UPS is used to connect. As soon as the electric power is turned off, it will ensure the operation of the device in the autonomous mode. The duration of his work ranges from several hours to days.

Of course, it is also necessary to choose an uninterruptible power supply according to certain parameters, taking into account the rules. Equal distribution of head is an important task. Special collectors and pressure reducing valves are used for this. It is impossible to start the motor idling, which will adversely affect its performance and the device will quickly fail. After installing the pump in the DHW system, it is necessary to fill the water circuit and make a test run to check the functionality of the mechanism.

A device with a wet rotor is a simple design that does not need regular inspection and even repair, which is one of the main advantages of this equipment. The only thing that will need to be done is to clean and replace the filter if necessary. For dry rotor pumps, maintenance is required once every two years. It is necessary to replace the lubricant and clean the housing so that the device runs smoothly. If desired, you can consult with qualified professionals to make the right choice.

In the next video you will find an overview of the surface circulation pump GRUNDFOS UP 15-14 B.