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The automation of booster systems, with one or more electric pumps, can be carried out with several basic systems for managing the start, operation and stop of the electric pump, which are briefly described below:
PRESSURE-DEPENDENT
It is the best known method, the electric pump starts (ON) when the flow demand on the installation causes a pressure fall until a previously established minimum value of pressure, and pump stops (OFF) when it reaches another pre established maximum value of pressure.
This system needs an air storage tank and the provided pressure is not constant, but it oscillates between pre-established values.
Products:
Switchmatic
PRESSURE+FLOW DEPENDENT
The electric pump can be started by 2 different ways: when the flow demand on the installation causes a pressure fall until a previously established minimum value of pressure or when the flow sensor is activated by circulation of fluid. When flow demand finishes the electric pump is stopped.
This system does not need the traditional accumulator tank and if the flow is constant, the pressure will keep constant, if there is a flow variation the pressure will change according to the flow curve of the electric pump.
Products:
Controlpump
Controlmatic
Compact 2
Compact 3
Optimatic
Optimatic 22
Optimatic 22 DC nautical
Compact 22
Optiplus
INVERTER
Also known as frequency converter, this system is technologically more advanced than the previous ones, as it keeps always constant the pressure independently of the flow demand. The INVERTER is constantly modulating the pump’s speed and it consumes only the indispensable amount of energy, in addition to the energy saving, we increase the life expectancy of the electric pump because its mechanism is not always submitted to its maximum regime like in the other systems.
It avoids "water hammer" effect because both start and stop of the pump are carried out progressively, allowing, in some cases, to be installed without the hydro pneumatic expansion tank.
Products:
Speedmatic Set
Speedmatic Master
Speedmatic Easy
Speedmatic Alt
Speedbox
Speedmatic set alt
Speedboard
