Grundfos SQN-7 series pumps have a minimum flow of 1,900 litres per hour and a maximum recommended flow of 8,000 litres per hour. A very reliable Grundfos pump with a 74mm diameter suitable for 4" bores and larger. With its internal soft start, these pumps are easily able to operate off a small generator.
To download the performance curves for the SQN-7 - click here
To download the Big Book on the SQN series in pdf format - click here (3 meg)