Which submersible pump was replaced with a Grundfos SQ?
By how much does the supply voltage decrease before the motor contactor stops the pump?
Which are the two most common applications in which a Grundfos SQ/SQE submersible pump is used?
Where is domestic groundwater extraction typically relevant?
The 3” SQ pump is obviously ideal for new boreholes but where can it also be used?
Why must the pump unit be installed below the dynamic water table?
Test results
Q: Which submersible pump was replaced with a Grundfos SQ?
A: A 4” submersible pump
Q: Which submersible pump was replaced with a Grundfos SQ?
A: A 3” submersible pump
Q: Which submersible pump was replaced with a Grundfos SQ?
A: A 5” submersible pump
Q: By how much does the supply voltage decrease before the motor contactor stops the pump?
A: More than 10 %
Q: By how much does the supply voltage decrease before the motor contactor stops the pump?
A: More than 15 %
Q: By how much does the supply voltage decrease before the motor contactor stops the pump?
A: More than 20 %
Q: Which are the two most common applications in which a Grundfos SQ/SQE submersible pump is used?
A: Groundwater lowering & Irrigation
Q: Which are the two most common applications in which a Grundfos SQ/SQE submersible pump is used?
A: Domestic water supply & Groundwater lowering
Q: Which are the two most common applications in which a Grundfos SQ/SQE submersible pump is used?
A: Domestic water supply & Irrigation
Q: Where is domestic groundwater extraction typically relevant?
A: In big cities.
Q: Where is domestic groundwater extraction typically relevant?
A: In remote areas where it is too costly to extend the municipal water supply to just a few houses.
Q: Where is domestic groundwater extraction typically relevant?
A: In smaller and medium sized towns.
Q: The 3” SQ pump is obviously ideal for new boreholes but where can it also be used?
A: In wells with water temperature up to 60° C.
Q: The 3” SQ pump is obviously ideal for new boreholes but where can it also be used?
A: In installations that require constant pressure.
Q: The 3” SQ pump is obviously ideal for new boreholes but where can it also be used?
A: In original 4” boreholes where sediments over the years have narrowed the hole.
Q: Why must the pump unit be installed below the dynamic water table?
A: So you are sure to minimise your power bill.
Q: Why must the pump unit be installed below the dynamic water table?
A: To avoid the risk of dry-running during operation.
Q: Why must the pump unit be installed below the dynamic water table?
A: To maintain a stable pressure in the system.