How to choose a pumping station for the house? Connecting the pump station

Water is the basis of everything that surrounds us. The potential to always have at hand an essential supply of life-giving moisture has worried the minds of mankind at all times. Dwellings and villages were located next to water sources, on the banks of rivers, streams and lakes. The increase in the population, the growth in the size of settlements and various other historical factors gave impetus to the creation of an extensive network of water pipes, and subsequently pumps, which increase the pressure inside the system.

Uninterrupted water supply

Residents of large cities do not need to find out where their water comes from, what devices and mechanisms support the functionality of water supply systems. But those who build their own house or dacha should initially solve the problem of supplying a sufficient amount of water to the dwelling for drinking and domestic needs.

For individual supply of private housing with water there are pumps, different in type of water intake, design and productivity. How to choose a pumping station for the house, where to start?

NA Selection

First of all, it is necessary to determine the volume of liquid for daily consumption. If there is a need for local irrigation of a small area, then ordinary pumps can easily cope with this task. In the case of the need for water supply of larger buildings with several points of use without a pumping station is indispensable. In addition to the pump itself, it includes: engine, hydraulic accumulator, pressure switch, connecting hoses, pipelines, automatic control and process control. It is also necessary to have a check valve and an intake filter. The non-return valve significantly extends the service life of the pump, preventing the harmful "dry running" mode, allowing the HC system to be constantly filled and ready for operation. The filter, standing at the entrance and contacting with the water surface, protects the whole system from getting into the working area of foreign objects, dirt, small animals and insects.

Accumulators

A water storage tank, or a tank equipped with a valve and connected to a water pipe and a pump, is called a hydraulic accumulator. In it, the water stored in the reserve and constantly replenished during consumption is under the pressure of the air. This is done to keep the system running for a certain amount of time even if the power supply to the pump motor is unexpectedly disconnected.

The storage tanks are made of various materials: conventional, galvanized and stainless steel. Also, the NA producers offer the following volumes of accumulators: 24 l, 50 l, 100 l, large capacities are also provided (on individual orders). The larger the volume, the smoother the adjustment of the pressure in the system will be and the cycle of the motor on / off will be less often performed. The service life is prolonged. When choosing tank capacity, one should be guided by the number of people permanently living in the house: if one has enough 24-liter capacity, then for a large family and 100 liters there may be little.

Types of pumping stations

• Vortex.
• Self-priming - ejector built-in.
• Self-priming with remote ejectors.
• Multistage.

Parameters of HC

Vortex NSs have become widespread due to their ability to create a large head of injected water. In addition, it is a pumping station for a house, the price of which is more than affordable (an average of about $ 70). The shortcomings include small productivity and the possibility of taking liquids from depths of not more than 7 m.

The average pressure and volume of pumped water are self-priming HC with built-in ejectors. The maximum depth with which water can be taken is 9 m, they do not require careful filling of the entire system before launching, they can function even when a small amount of air enters the pipes.

Self-priming HCs with remote ejectors are indispensable for the occurrence of subsoil waters at depths of up to 45 m. Accordingly, their installation, maintenance, start-up is complicated, the cost of the entire system is increased. They are used with a poor water-based soil layer, when the use of a deep-water pump is impossible. Often this is the only possible pumping station for dacha, infield, located in dry areas with no near natural water bodies.

Multistage HC, although they operate from a depth of not more than 7 m, are characterized by excellent performance and high water supply pressure. At the same time, they are very unpretentious in maintenance, the connection of the pumping station is simple, and the units are slow, which attracts consumers by the absence of extraneous noise during periodic switching. In addition, there is no need to bypass a lot of outlets in search of the right type of unit such as a pumping station. The instruction for each model includes all the necessary parameter data, it can be read in advance, say, in the same online store.

Characteristics of the National Assembly

As an example, the Grundfos MQ pumping station is taken. The kit includes:

• Self-priming pump.
• Membrane pressure tank
• Electric motor.
• Pressure and flow sensor.
• Relay of passage and flow.
• Control system (with protection against dry running).
• Check valve.

The pump station is fully automated. Convenient and simple inspection control panel; Thanks to the built-in pressure tank, the number of repeated cycles of system starts is reduced, which significantly extends the service life. It differs in small dimensions, simple connection, slow speed. All parts under high loads are made of chromium-nickel steel alloys. If you want to choose a pumping station for a summer residence, Grundfos MQ is an ideal variant!

Calculation of parameters

To determine the nominal head for the HC, it is sufficient to add the following system parameters: height in meters of water column to create the required pressure (15 - 30 m), water depth, water supply from the pump to the highest point and the length of the entire horizontal line from the well Well) to the accumulator, divided by 10. The resulting value and will be decisive. Corresponding to these parameters, the pumping station for a summer cottage, a country house was chosen correctly.

Important note

Passport data of documents attached to the National Assembly - instruction, technical description - indicate performance parameters under laboratory conditions, "0" level of water level and rated voltage of electric networks. Real conditions rarely correspond to such values, so you should choose an HC with a twofold excess of all values over the calculated values.

Principle of functioning of the National Assembly

At the beginning of the work, the accumulator is filled and the necessary pressure is created in it. As the liquid expends, the pressure in the tank drops, the automation turns on the HC, the pump starts to work to inject water until the optimal system parameters are restored. Used for household needs water, flowing through the internal channels of the HC, cools the mechanisms from overheating. To control the temperature mode of operation, an additional redundant automatic shutdown system is installed.

Modern pumping stations completely exclude human participation in the regulation of pressure, the procedure for abstraction of water and operate completely autonomously. Time passed for such cumbersome structures as water towers. Recollection of them was preserved only in the popular name of the National Assembly - "bezbashenki." The following recommendations will tell you how to choose a pumping station for a house, cottage, country villa.

In addition to calculating the minimum water consumption, an important aspect of preparing for the selection of a pumping station (hereinafter - the HC) is to determine the availability and depth of underground sources of moisture, and how to access them. Depending on the depth of the "first mirror", i.e., the level of availability of subsoil moisture, and is selected by the HC. Conventional stations provide uninterrupted operation at depths of moisture up to 8 m. If the water is located deeper, downhole pumps are introduced into the structure of the HC equipped with the appropriate fittings.

If the well was drilled by representatives of specialized organizations, information on how to choose a pumping station for the house can be obtained from them, with calculations of its productivity and professional recommendations. In the case of self-installation of the NS, it is necessary to check the productivity of the well with pumps with adjustable characteristics. The process consists in the selection of water of a certain volume and in the calculation of a certain time, during which there is no visible decrease in the level of fluid in the well or well. It should be remembered that all calculations must be made according to the maximum values of the required quantity of water and the points of its use.

The above recommendations will help you to clarify for yourself how to choose a pumping station for a house or other housing object correctly.