Variable Frequency Drive Pumps
A variable frequency drive is used for adjusting a flow or pressure to the actual demand. It controls the frequency of the electrical power supplied to a pump or a fan. Significant power savings can be achieved when using a VFD.
A variable-frequency drive is a system for controlling the rotational speed of an alternating current electric motor. It controls the frequency of the electrical power supplied to the motor. A variable frequency drive is a specific type of adjustable-speed drive. Variable-frequency drives are also known as adjustable-frequency drives (AFD), variable-speed drives (VSD), AC drives, or inverter drives.
Automatic frequency control consist of an primary electrical circuit converting the alternating current into a direct current, then converting it back into an alternating current with the required frequency. Internal energy loss in the automatic frequency control is rated ~3.5%
Variable-frequency drives are widely used on pumps and machine tool drives, compressors and in ventilations systems for large buildings. Variable-frequency motors on fans save energy by allowing the volume of air moved to match the system demand.
Reasons for employing automatic frequency control can both be related to the functionality of the application and for saving energy. For example, automatic frequency control is used in pump applications where the flow is matched either to volume or pressure. The pump adjusts its revolutions to a given setpoint via a regulating loop. Adjusting the flow or pressure to the actual demand reduces power consumption.
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F80LTP610WH68m
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Davey
Davey DynaDrive DD90-11 Variable Speed Constant Pressure Pump
$1,600.00$1,450.00 Select options9% OFFF130LTP660WH59m -
Variable Frequency Drive Pumps
Grundfos CMBE1-44 I-U-C-A-D-A Variable Speed Pump 98374705
$1,195.00 Select optionsF55LTP550WH48m -
Variable Frequency Drive Pumps
Grundfos CMBE3-62 I-U-C-A-D-A Variable Speed Pump 98374709
$1,485.00 Select optionsF90LTP1100WH66m -
Grundfos
Grundfos CMBE5-62 I-U-C-A-D-B Variable Speed Pump 98374712
$2,275.00$2,150.00 Select options5% OFFF125LTP1500WH68m -
F80LTP850WH50m
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10% OFFF120LTP1550WH62m
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7% OFFF78LTP550WH45m
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F210LTP1550WH62m
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F315LTP1550WH62m
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Variable Frequency Drive Pumps
Grundfos CMBE TWIN 3-62 I-U-C-C-D-A Variable Speed Pump 99282854
$3,200.00 Select optionsF180LTP1100WH66m -
F420LTP1550WH62m
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Variable Frequency Drive Pumps
Grundfos CMBE TWIN 3-93 I-U-C-C-D-A Variable Speed Pump 99282855
$3,650.00 Select optionsF180LTP1500WH102m -
Variable Frequency Drive Pumps
Grundfos CMBE TWIN 5-62 I-U-C-C-D-B Variable Speed Pump 99282856
$3,875.00 Select optionsF250LTP1500WH68m