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New KSB pressure booster systems for water supply applications

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KSB has introduced new ‘ready-to-connect’ pressure booster systems - the Delta Macro type series, designed for large flow rates.
The maximum flow rate per system is 960 m3/h and the maximum pump head is 160 metres as standard. The ready-to-connect units operate fully automatically and are equipped with between two and six Movitec high-efficiency centrifugal pumps.
The system’s microprocessor control unit (Booster Command Pro+) starts and stops the pumps in line with demand using either cascade control (F variant) or a frequency inverter for speed control (VC and SVP). LEDs on the control panel indicate the system's current operating status.
A Modbus RTU interface, provided as standard, facilitates connection to external communication devices.
For transmitting warnings or alerts to a higher-level control station, the standard configuration has two volt-free contacts on terminals in addition to other optional signal terminals.
The pressure booster systems can be connected to the KSB Delta FlowManager app using a Bluetooth LE interface. The app shows the current status of the pumps, the pressures on the suction and discharge side, and the programmed parameters.
It also allows users to control and operate the system directly, and change the settings.
The SVP version is fitted with high-efficiency IE5 synchronous reluctance motors from the Supreme type series and the PumpDrive variable speed system. The F and VC variants are equipped with IE3 motors.
The first pump is started by a pressure drop in the piping on the opening of a consumer installation. While the pressure booster system is in operation, the microprocessor control unit starts and stops the pumps in line with demand.
When water consumption stops, all pumps are ramped down sequentially once the stop pressure has been reached. This ensures that the individual pumps operate only in line with actual demand.
If a pump has not been operated for over 24 hours, the microprocessor control unit initiates a test run for this pump. Should a lack of water occur in the inlet, the system stops automatically to prevent damage caused by dry running.
KSB assembles and tests all systems at the factory prior to dispatch, so all operators have their units delivered ready-to-connect. This makes commissioning easy and fast for service personnel. Thanks to shut-off valves downstream and upstream of each pump, replacing a pump does not require the piping to be drained beforehand.