Submersible pump for a well

In the case of a significant removal of the source of water intake from the dwelling, of great depth, instead of surface models, a submersible pump for the well is used. At the same time, there are no restrictions on the diameter, equipment design. Vibrating, screw, vortex, centrifugal pumps can be installed. The choice depends on the budget of water supply, daily water consumption.

The main inconvenience of the well is the complex wiring diagram of communications. The water supply is connected below the ground freezing mark, the rings have a large diameter, which makes it difficult to manufacture the caisson. Therefore, in 80% of cases, the equipment is mounted as follows:

• the electrical cable from the pump goes sideways along with the pipe, it is connected to the electrical control panel installed in the house
• the pump for the well is hung on one (vertical position of the body) or two (horizontal installation, rarely used) cables attached to a frame made of rolled metal, rigidly fixed to the rings at the mouth of the well

When repairing, before lifting the pumping equipment, it is necessary to ensure the free movement of the cable or its disconnection before entering the horizontal water supply line. With pipes, the situation is simpler - just choose polyethylene for the water supply, mount a compression fitting inside the well. During repair work, it is enough to remove one nut to free the pump along with the pipe connected vertically to it.

In the manufacture of an irrigation system, the scheme is greatly simplified:

• water supply does not need to be pulled into the house, a hose or pipe is brought up along with a cable, electric cable
• a power line extends to the well
• the cable is fixed in the manner indicated earlier
• the upper part of the pipe is attached to the upper part of the ring or a frame designed to fix the cable, a tee or valve is put on it
• the power cable is connected to the control panel

At the end of the season, the pumping equipment is dismantled, the mouth is protected from snow and dirt until spring. Due to the large diameter of the source, there are no restrictions on the dimensions and design of the pumps.

Vibrating Water Pump

The daily water requirement is calculated before choosing a well pump to select the model of interest according to its characteristics. The main advantage of vibration modifications is the lowest possible price (starts from only 1,000 rubles), in comparison with centrifugal equipment, the difference is 500 - 300%. The main disadvantage is that vibration leads to a decrease in the resource:

• a sand cone forms around the casing at the perforation site over time

• vibrating well pumps contribute to the “floating” of this cone by moving fine dust down, lifting large fractions up
• fine sandy soil or sandy loam in this case clog the pump, hoses
• stony rock, large quartz will accumulate around the body, reducing the flow rate, making it difficult to lift the pump for repair, bottomhole flushing

All this is not relevant for the well - there is enough free space inside the rings to simply move the pump a few centimeters, getting rid of the sand cone without much difficulty. Therefore, with an average water requirement, vibration pumps are the cheapest option. There are no friction pairs in them, the minimum number of parts is used. Repair is available to any home master, operating costs are minimal.

There are modifications with an upper water intake that cannot be clogged with sand in a wide well ring in principle.

Screw well pump

A well submersible screw pump costs 3-2 times more than a vibration pump, it is trouble-free even with a high sand content. The simple design has high maintainability, there is no vibration at all. There is no sand cones around the body, the suction pipe is made rotatable, the streamlined shape reduces turbulence.

The most popular submersible pump for a well with this type of automation from manufacturers:

• Belamos - built-in thermal protection, 20 m electric cable, supply of 1.8 or 1.7 cubes to a height of 150 m or 95 m, respectively, oil cooling of the drive
• Shimge - QG range with galvanized housings, screws, performance within 120 - 20 m (head), 1.8 - 1.2 cubic meters per hour (delivery), designed for depths within 15 m

In screw pumps, there is always a certain volume of liquid, allowing you to turn on the equipment without first pouring the working medium into the casing. They provide stable pressure in the pipeline, which increases the life of the equipment. In the absence of vibration, the bottomhole water does not become cloudy, which contributes to an increase in the resource of the water supply source.

Vortex pump for well

Specific operating conditions determine which pump is best for the well with the daily water consumption required for the family. The choice of a vortex pump is relevant with a low flow rate of the well, a significant distance from the source of water intake from the dwelling. These units are capable of lifting liquid by 70 - 50 m, the performance rarely exceeds 2 cubic meters.

The price of a pump for a well is higher than that of vibration models, but lower than any other modifications. The only condition for long-term operation is the level inside the well of 1.5 - 1.2 m. The vortex pump should be 0.6 m from the bottom, submerged by 0.5 m, at least. This equipment is designed for year-round operation, is mounted in a well in a standard way, and can be equipped with any automatic control systems.

Water supply from a well with a centrifugal pump

Submersible centrifugal units for liquid pumping are designed for wells. This is the most expensive equipment for water supply systems with high head / flow rates. Centrifugal water pumps are suitable for wells only when using automation systems. The equipment is too powerful for continuous operation. Therefore, hydraulic accumulators, pressure sensors inside the system are used.