Grundfos SQ/SQE Borehole Pumps
Grundfos have a range of submersible borehole pumps that are suitable for use in a variety of environments. There are four models within the range: SQ, SQE, SQ-N and SQE-N. These multi-stage pumps can be used for:
The pumps can be used for clean, non-explosive and non-aggressive liquids, which have no fibres or solid particles. They are suitable for liquids that have a maximum sand content of 50g/m3.
The SQ and SQE pumps operate at variable speeds and can be used continuously or on an intermittent basis. The models have an extremely efficient motor and pump. This is controlled electronically and the integral system uses a frequency convertor with soft start ability. This enables the motor to maintain a consistent level, improving the efficiency of the pump and reducing the running costs. The SQE models use an MSE 3 motor. This has the ability to be controlled remotely.
The pumps are protected from dry running and the issues of over and under voltage. They also offer protection from the risks of overheating and overload. The top bearing protects the motor and the pump from the problem of upthrust. This reduces the likelihood of it breaking down throughout the start-up process.
These Grundfos pumps are durable and reliable. Once installed, the stainless steel pumps require little maintenance. The impellers are floating, meaning they are not attached to the shaft. This ensures they are resistant to wear and have a long life span.