Pumps

Reliable and efficient operation saves energy

CG AC drives offer considerable energy savings by continuously adapting operation to demand. Further energy is saved thanks to automatic pump rinsing and a sleep function that stops the motor when it doesn’t need to run to keep up the pressure.
Parameters can be set in your own process units, for example m3/s or bar, making monitoring safe and easy. Up to seven pumps can be controlled with one variable speed drive, without a PLC or other external equipment.

Smooth operation without water hammer

CG softstarters greatly reduce start currents, resulting in less hydraulic and mechanical stress on pipes and gaskets. Torque control offers ultra-smooth starts with constant acceleration. Using smaller fuses and cables also reduces energy and installation costs.
Linear stops eliminate the risk of water hammer, without the need for costly motor-controlled valves to reduce pressure spikes. Start and stop levels can be controlled by connecting an analogue sensor directly to the softstarter. No PLC is required.

Protection against damage and downtime

CG offers efficient protection for your pumps, saving maintenance and downtime costs. Our shaft power monitors also prevent damage and inefficiency, for example if a pipe is blocked, a valve is not fully opened or the pump is running dry.

This is done using a unique technique of calculating motor shaft power. Any over- and underload situation is detected immediately, across the entire speed range. Using the motor as its own sensor means no costly or service-demanding external sensors are required.