What happens if the water level in the well drops below the inlet?
What is the benefit of a slow increase in speed?
Which are the two most common applications in which a Grundfos SQ/SQE submersible pump is used?
Where is domestic groundwater extraction typically relevant?
By how much does the supply voltage decrease before the motor contactor stops the pump?
The 3” SQ pump is obviously ideal for new boreholes but where can it also be used?
Test results
Q: What happens if the water level in the well drops below the inlet?
A: The motor power consumption drops
Q: What happens if the water level in the well drops below the inlet?
A: The motor power consumption stays the same
Q: What happens if the water level in the well drops below the inlet?
A: The motor power consumption increases
Q: What is the benefit of a slow increase in speed?
A: It keeps the motor current low
Q: What is the benefit of a slow increase in speed?
A: It keeps pump movements at a minimum
Q: What is the benefit of a slow increase in speed?
A: It removes the need for motor contactors
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: 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: 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.