More information about the pump station: connectivity options

surface pumps (Water station) are designed for pumping clean water and non-corrosive liquids. They are installed outside the pumping medium, able to take water from a depth of 8 to 9 meters (depending on the manufacturer). Aquario pump rise from 8 meters, but the manufacturer does not recommend using them below 7.5 meters.

Requirements for the pumped liquid:

• is clean water that does not contain long-fiber;
• size solids - no more than 1 mm;
• suspended particulate matter - not more than 50 g / m.

Applications of pumps and pump stations

Pump for irrigation systems

In simple systems where a supply of water under pressure without automatic control operation of the pump, the pump will be sufficient without the use of additional devices:

The water supply system from a well, borehole

For water supply at home is more convenient to use the automatic pumping station. Unlike a simple pump, pumping station automatically switches on and off depending on the use of water and constantly maintains the pressure in the water system.

The water supply system in the presence of water mains with insufficient pressure

To increase the pressure in the main pipe is recommended to use an automatic pump station together with the intermediate accumulation capacity. The water from the water main first fills an intermediate container, and then taken out of the pumping station and pressure amenable to the consumer.

IMPORTANT!

NOT recommended to connect the pump or pumping station directly to the main water supply (figure below). Since in this case, it is impossible to guarantee the flow of water into the pump and there is a risk of the pump without water. Or vice versa, is possible to apply too much pressure, which can damage the pump. When this circuit must always be retrofitted pump additional means of protection against dry running and excessive input pressure.

Pumping station - an automatic machine, which in addition to the pump includes: accumulator, pressure switch, control and connecting equipment. Functionally pumping station differs from the pump so that it constantly keeps the pressure in the water system and automatically turns on / off according to use water.

hydraulic accumulator pumping station consists of a metal tank installed therein special rubber membrane and pre whole downloaded at a certain pressure, air. Air is pumped through the nipple located under a plastic cover at the rear of the accumulator.

Pressure switch - an electromechanical device, responsive to the water pressure in the water system, and depending on the magnitude of this pressure, open or close the power supply circuit of the pump. Setting the pressure switch can be changed.

The principle of operation of the pumping station

When starting the pump station and using the water pump is switched on automatically and starts to pump water to the consumer.

After closing the tap, a pump pumps water into the pressure accumulator by expanding the membrane and increasing the pressure in the system.

Once the pressure reaches a certain (pre-configured) values ​​(cut-out pressure), the relay switches off the pump.

At the start of intake, water contained in the membrane accumulator pressure starts to be supplied to the consumer. In this case, the system pressure begins to decrease, and the pump is switched off.

Once the system pressure falls below a certain (tuned), the values ​​(in pressure), the relay includes a pump and the cycle is repeated.

Mounting of the pump, the pump station.

The principal difference between the installation of the pump and the pump station is not, so we will show you examples of setting the example of the pump.

suction line

suction line - the most important sector for the system with a surface pump. Errors in the selection and installation of the pipe diameter in this region most critical to the proper operation of the pump.

As the suction pipe is recommended to use a rigid metal or plastic pipe, as well as crush proof flexible reinforced hoses. When installation, try to minimize the number of abrupt reductions, extension and rotation of the suction pipe.

Key parameters of the suction line (shown below):

• Nvs.fakt - suction head actually (the vertical distance from the surface of the water at the source to the pump inlet);
• L - total length of the suction pipe;
• dvs. - inner diameter of the suction pipe.

For selection of the pump recommend using our selection of calculator - Selection of the pump, the pump station

IMPORTANT!

When mounting the pipe line must provide a continuous slope pipe from the pump to the source intake is not less than 1 degree, to avoid accumulation of air bubbles and the formation of air traffic jams.

IMPORTANT!

To facilitate the filling and a pump suction pipe with water before starting and prevent it from escaping system when the pump is turned off, must be installed on the suction pipe check valve with strainer.

In the case of the pump with the overpressure (water itself enters the pump from the tank or line) is also necessary to install a check valve in the suction line immediately at the pump inlet.

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By pressure pipe is not imposed such stringent requirements as to the suction. We can not recommend zauzhat diameter pipes without the need to not create additional pressure losses and performance when supplying water to the consumer.