The surface automatic pumping station of the TECNOSELF 15 PRESSDRIVE R series with AISI 304 stainless steel body is equipped with a built-in self-priming valve. It provides strong suction power. If the pipeline is not filled, such a station is able to raise water to a height of up to 9 m, while the station is not afraid of air jams. 

BENEFITS / FEATURES

The TECNOSELF 15 PRESSDRIVE R pumping stations, thanks to the built-in self-priming valve, have a strong self-priming capacity, lifting water with an empty suction pipeline to a height of up to 9 m *.

A flow control unit with a built-in non-return valve allows for fully automatic operation of the pumping station.

The flow control unit implements the functions of protection against "dry running", operation "on a closed valve", visualization of connection to the network, station operation, protection operation (LED indicators on the body of the flow control unit), auto-restart (with time intervals between restarts 1, 5, 15 and 60 minutes), as well as a manual station reset button (RESET).

The hydraulics of the pumping stations are made of non-oxidizing materials: stainless steel, polymers**.

The hallmark of the TECNOSELF 15 PRESSDRIVE R is its low noise level.

The stations have compact dimensions, excellent hydraulic characteristics, and are highly reliable in operation.

The electric motors of the stations are highly energy efficient.

* The pump casing must be completely filled with water before operation. The height of water lift is given for operation of the pump at a height at an ambient temperature and a pumped liquid of 20 ° C and at zero altitude (height above sea level). In actual operating conditions, the height of the water lift by the pump may be less.

** Parts of the station in contact with the pumped water.

DESIGN

Centrifugal horizontal multistage electric pump complete with flow control unit

Impeller type: closed

Seal type: mechanical (face)

Motor cooling: air, forced (by means of a fan mounted on the motor shaft)

Type of connection to:

- suction pipe: threaded

- pressure pipe: threaded

The principle of operation of the self-priming valve

The self-priming valve body configuration provides strong suction capacity when the pump body is filled with water and the suction line is empty. When the pump is started, due to the rotation of the impellers in the aquatic environment, centrifugal forces arise that ensure the pumping out of air from the suction pipeline. Then a strong vacuum is created in the pipeline, due to which water begins to rise through the pipeline to the suction pipe of the pump. Reaching the pump, water fills its interior. In this case, the mixture of air and water circulating in the pump is gradually replaced by water, which has a much higher density, which leads to a multiple increase in pressure inside the pump housing. The design of the valve is designed in such a way that at the moment of complete filling of the internal space of the pump, the valve closes under the influence of the water flow, while increasing the performance and overall efficiency of the pump.