Next, you will learn what a pumping station is and what its purpose is, the device and principle of operation of a pumping station, the pros and cons of pumping stations, how to connect a pumping station in a private house.
The content of the article
- Pumping station - what is it. Purpose of pumping stations
- The design and principle of operation of the pumping station
- Pros and cons of pumping stations
- How to connect a pumping station in a private house
Pumping station - what is it. Purpose of pumping stations
A pumping station is a complex system of devices for supplying water to a room and increasing pressure in a pipeline.
Residents of private houses, as well as summer residents, know what a problem there is with water pressure in houses - only a trickle of water flows from the maximum open tap. The pump is standing, working properly, pumping water from the source, but there is little pressure. Then they put a pumping station that pumps water into the system to a certain pressure.
The design and principle of operation of the pumping station
A standard pumping station with a hydraulic accumulator consists of 5 elements:
- electric motor
- Pump
- Hydraulic accumulator
- pressure gauge
- Pressure switch
All elements are interconnected by means of pipes or in another way.
The pumping station works like this:
The electric motor rotates the pump blades, which pump water from the water source/supply pipe. From the pump, water rises and branches - one branch goes to the accumulator and fills the free space inside it.
The accumulator is two-thirds filled with air, which is pumped into it at the factory. A flexible membrane separates the air from the water. Water compresses the air, and he tries to push it out - this increases the pressure in the pipeline.
The second branch - water fills the entire pipeline, and water also fills the flange of the pressure switch. The pump is still pumping water into the system.
The main components of the relay are springs, contacts, and a membrane. Water presses on the membrane, which presses on the piston with a spring.
When the pressure reaches a certain value, the membrane presses hard enough that the piston opens the contacts and the pump turns off. The pressure at which the pump is switched off and the difference between it and the switch-on pressure can be adjusted. The pressure is measured mechanically.
When you open a faucet, the accumulator diaphragm pushes water out of the faucet. The pressure in the system drops. Then the water does not press hard enough on the relay membrane, and the contacts close - the pump turns on. The pump pumps water until the pressure in the system rises again.
Pros and cons of pumping stations
The advantages of pumping stations include:
- autonomy
- They maintain pressure and pressure in the system
- Increase the efficiency of the water supply system
- Create a supply of water
- Extend the life of water supply equipment
- Reduce electricity costs
- compactness
- Small dimensions
- Easy connection
Of the minuses:
- Make a lot of noise
- vibrate
How to connect a pumping station in a private house
First, choose a place to install the station.
Take into account the length of the station cable and the distance to the outlet, the distance to the water source/pipeline, the humidity and temperature of the room. Non-stainless/non-specially coated instruments will deteriorate due to corrosion in rooms with relative humidity above 85%. Most pumping stations cannot operate at low temperatures, with the exception of cast iron models.
Prepare a place for the unit - clean it, make a base of wood or concrete.
Place a rubber mat on the base where the station will stand. The device vibrates strongly during operation - rubber will dampen vibrations, so when choosing a pumping station, give preference to models with rubber gaskets on the legs.
Assemble the pumping station, if required.
Install the station in the prepared place.
Connect a tube with a cross section for your station to the water supply pipe (for household models - 32 mm).
Connect the tube from the water source to the station. Install it at an angle - the angle between it and the pump is at least 1 degree.
Connect the water outlet pipe from the station to the house's water supply system.
Tighten all connections.
Factory settings correspond to those indicated on the packaging. If you have few or many of them, then adjust the pressure in the relay. To do this, disassemble the pressure switch housing and rotate the large spring nut clockwise to increase in shutdown pressure (when the pump stops pumping water into the system, what pressure will be in pipeline). The pressure difference can be adjusted by turning the nut of the smaller spring.
Connect the motor to the mains.
Wait for air to escape from the system.
Test the pumping station.
Rusty water will come out first - this is normal, rust is washed off from the pipes / pump. Then clean water will follow.
