icon Skip to content
FREE SHIPPING ON ORDERS OVER $100 AUSTRALIA-WIDE* (T&C's Apply - exc Bulky Items)
FREE SHIPPING ON ORDERS OVER $100 AUSTRALIA-WIDE* (T&C's Apply - exc Bulky Items)
FAQ Our Projects Iron Filtration Perth Track your order Trade/Special Pricing Contact us

Variable Speed Pumps

These pumps are called Variable Speed Drive Pressure Pumps "Constant Pressure Pumps". As you turn taps on and off, the motor speed adjusts accordingly giving you constant pressure. The pump controller adjusts the motor speed and maintains constant outlet pressure, even with fluctuating demand.

Variable frequency drives are used for adjusting flow or pressure to the actual demand. They control the frequency of the electrical power supplied to pumps or fans. Significant power savings can be achieved when using a VFD pump. 

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 consists of a 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 drive 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.

  • Sale Sale
    $1,553.00
    $1,553.00 - $1,553.00
    $1,553.00
    $1,375.00
    $1,375.00 - $1,375.00
    $1,375.00

    Grundfos SCALA2 3-45A 0.45kW Variable Speed Pressure Pump (Max 60LPM/400kPa)

    Grundfos SCALA2 3-45A 0.45kW Variable Speed Pressure Pump (Max 60LPM/400kPa)  DOWNLOAD PRODUCT SPECIFICATIONS Grundfos Scala 2 is a robust, ...

    View full details
  • DAB E.SYBOX MINI 3 Variable Speed Pressure Pump Title: Default Title
    Sale Sale
    $1,499.00
    $1,499.00 - $1,499.00
    $1,499.00
    $1,149.00
    $1,149.00 - $1,149.00
    $1,149.00

    DAB E.SYBOX MINI 3 0.85kW Variable Speed Pressure Boosting Pump (Max 80LPM/500kPa)

    DAB E.SYBOX MINI3 Variable Speed Home Pressure Booster Pump 0.85kW - Max 80LPM/50m Head 240v DOWNLOAD PRODUCT BROCHURE The DAB E.SYBOX MINI3 ...

    View full details
  • Grundfos CMBE Variable Speed Booster Pump Product Name: Grundfos CMBE 1-44 Pressure Pump 0.55kW, Grundfos CMBE 3-62 Pressure Pump 1.1kW, Grundfos CMBE 5-62 Pressure Pump 1.5kW
    Grundfos CMBE Variable Speed Booster Pump Product Name: Grundfos CMBE 1-44 Pressure Pump 0.55kW, Grundfos CMBE 3-62 Pressure Pump 1.1kW, Grundfos CMBE 5-62 Pressure Pump 1.5kW
    Sale Sale
    $2,250.00
    $2,250.00 - $2,250.00
    $2,250.00
    $2,195.00
    $2,195.00 - $2,195.00
    $2,195.00

    Grundfos CMBE3-62 1.10kW Variable Speed Constant Pressure Pump with 2L Pressure Tank (Max 90LPM/650kPa)

    Grundfos CMBE 3-62 1.10kW Variable Speed Pressure Pump (90LPM/650kPa)  DOWNLOAD PRODUCT SPECIFICATIONS The Grundfos CMBE3-62 is a high-effici...

    View full details
  • DAB E.SYBOX Variable Speed Pressure Pump Title: Default Title
    Sale Sale
    $2,399.00
    $2,399.00 - $2,399.00
    $2,399.00
    $1,998.95
    $1,998.95 - $1,998.95
    $1,998.95

    DAB E.SYBOX LARGE 1.55kW Variable Speed Pressure Boosting Pump (Max 120LPM/610kPa)

    DAB E.SYBOX Variable Speed Pressure Pump 1.55kW 240v  DOWNLOAD DAB E.SYBOX BROCHURE  DOWNLOAD DAB E.SYBOX TECHNICAL SHEET The DAB Esybo...

    View full details
  • $2,235.00 - $2,235.00
    $2,235.00
    $2,235.00 - $2,235.00
    $2,235.00

    Davey DynaDrive DD90-11 Variable Speed Pressure Pump with 8L Pressure Tank (Max 130LPM/590kPa)

    Davey DynaDrive Variable Speed Pressure Pumps with 8L Pressure Tank DOWNLOAD PRODUCT BROCHURE The Davey DynaDrive DD90-11 is a powerful, all-...

    View full details
  • Grundfos CMBE Variable Speed Booster Pump Product Name: Grundfos CMBE 1-44 Pressure Pump 0.55kW, Grundfos CMBE 3-62 Pressure Pump 1.1kW, Grundfos CMBE 5-62 Pressure Pump 1.5kW
    Grundfos CMBE Variable Speed Booster Pump Product Name: Grundfos CMBE 1-44 Pressure Pump 0.55kW, Grundfos CMBE 3-62 Pressure Pump 1.1kW, Grundfos CMBE 5-62 Pressure Pump 1.5kW
    Sale Sale
    $3,589.27
    $3,589.27 - $3,589.27
    $3,589.27
    $3,195.00
    $3,195.00 - $3,195.00
    $3,195.00

    Grundfos CMBE5-62 1.50kW Variable Speed Constant Pressure Pump with 2L Pressure Tank (130LPM/700kPa)

    Grundfos CMBE5-62 1.50kW Variable Speed Pressure Pump (Max 130LPM/700kPa)  DOWNLOAD PRODUCT SPECIFICATIONS The Grundfos CMBE5-62 is a premiu...

    View full details
  • Grundfos CRFLEX Solar Surface Pumps Product Name: CRNF1-17 Flex, CRNF3-11 Flex, CRNF5-6 Flex, CRNF10-02 Flex, CRNF15-01 Flex, PT100 Temp Sensor for CR Pumps
    $4,075.00 - $4,820.00
    $4,075.00
    $4,075.00 - $4,820.00
    $4,075.00

    Grundfos CRFLEX AC/DC Solar Variable Speed Vertical Multistage Centrifugal Surface Pumps

    Grundfos CRFLEX Multistage Centrifugal Surface Pumps  DOWNLOAD PRODUCT BROCHURE The Grundfos CRFlex in-line multi-stage solar surface pump...

    View full details
  • $1,295.00 - $1,295.00
    $1,295.00
    $1,295.00 - $1,295.00
    $1,295.00

    Davey EvoDrive ED60-09G 0.90kW 304ss Variable Speed Pressure Boosting Pump (Max 100LPM/700kPa)

    Davey EvoDrive ED60-09G 0.90kW 304ss Variable Speed Pressure Boosting Pump  DOWNLOAD PRODUCT BROCHURE DOWNLOAD USER MANUAL The Davey EvoDrive...

    View full details
  • $3,195.00 - $3,195.00
    $3,195.00
    $3,195.00 - $3,195.00
    $3,195.00

    Davey DynaDrive PRO DD160-19 1.60kW Variable Speed Stainless Steel Pressure Boosting Pump (Max 160LPM/600kPa)

    Davey DynaDrive PRO DD160-19 1.60kW Variable Speed Stainless Steel Pressure Boosting Pump  DOWNLOAD PRODUCT BROCHURE The Davey DynaDrive PRO ...

    View full details
  • Grundfos CMBE Variable Speed Booster Pump Product Name: Grundfos CMBE 1-44 Pressure Pump 0.55kW, Grundfos CMBE 3-62 Pressure Pump 1.1kW, Grundfos CMBE 5-62 Pressure Pump 1.5kW
    $1,999.00 - $1,999.00
    $1,999.00
    $1,999.00 - $1,999.00
    $1,999.00

    Grundfos CMBE1-44 0.55kW Variable Speed Constant Pressure Pump with 2L Pressure Tank (Max 50LPM/500kPa)

    Grundfos CMBE1-44 0.55kW Variable Speed Pressure Pump (50LPM/500kPa)  DOWNLOAD PRODUCT SPECIFICATIONS The Grundfos CMBE1-44 is a compact, en...

    View full details
  • $1,420.00 - $1,420.00
    $1,420.00
    $1,420.00 - $1,420.00
    $1,420.00

    Calpeda Meta Small 0.65kW Variable Speed Pressure Boosting Pump (Max 80LPM/470kPa)

    Calpeda Meta Small 0.65kW Variable Speed Pressure Boosting Pump (Max 80LPM/470kPa) with Integrated Control - Single Phase  Download Product Broc...

    View full details
  • $2,950.00 - $2,950.00
    $2,950.00
    $2,950.00 - $2,950.00
    $2,950.00

    Onga IMH2200K Intellimaster 2.20kW High Flow Variable Speed Irrigation Pressure Pump with 8L Pressure Tank (Max 275LPM/550kPa)

    Onga IMH2200K Intellimaster 2.20kW High Flow Variable Speed Irrigation Pressure Pump with 8L Pressure Tank The Onga IMH2200K Intellimaster is a hig...

    View full details
  • $3,070.00 - $7,145.00
    From $3,070.00
    $3,070.00 - $7,145.00
    $3,070.00

    Grundfos CRIE 1 Variable Speed Vertical Multistage Pumps (Max 46LPM)

    Grundfos CRIE 1 Variable Speed Vertical Multistage Pumps (Max 46LPM) The CRIE pump is an in-line, multi-stage pump with a built-in variable speed d...

    View full details
  • $3,012.47 - $7,576.08
    From $3,012.47
    $3,012.47 - $7,576.08
    $3,012.47

    Grundfos CRIE 3 Variable Speed Vertical Multistage Pumps (Max 90LPM)

    Grundfos CRIE 3 Variable Speed Vertical Multistage Pumps (Max 90LPM) The CRIE pump is an in-line, multi-stage pump with a built-in variable speed d...

    View full details
  • $2,555.00 - $2,555.00
    $2,555.00
    $2,555.00 - $2,555.00
    $2,555.00

    Franklin Electric MH-M Mini 5AMH7B 1.50kW Variable Speed Constant Pressure Pump with 8L Pressure Tank & Smartphone Configuration (Max 130LPM/750kPa)

    Franklin Electric 5AMH7B 1.50kW Variable Speed Constant Pressure Pump with 8L Pressure Tank  DOWNLOAD PRODUCT BROCHURE The Franklin Electric ...

    View full details
  • Sale Sale
    $2,600.00
    $2,600.00 - $2,600.00
    $2,600.00
    $2,280.00
    $2,280.00 - $2,280.00
    $2,280.00

    Calpeda Meta 1.35kW Variable Speed Pressure Boosting Pump (Max 140LPM/470kPa)

    Calpeda Meta 1.35kW Variable Speed Pressure Boosting Pump (Max 140LPM/470kPa) with Integrated Control - Single Phase  Download Product Brochure ...

    View full details
  • $6,815.00 - $11,025.00
    From $6,815.00
    $6,815.00 - $11,025.00
    $6,815.00

    Grundfos Hydro SOLO-E CRIE 3 Variable Speed Pressure Booster Pump Package (Max 86LPM)

    Grundfos Hydro SOLO-E CRIE3 Variable Speed Pressure Booster Set (Max 86LPM)  DOWNLOAD PRODUCT BROCHURE The Grundfos Hydro SOLO-E CRIE 3 is a...

    View full details
  • $7,460.00 - $11,105.00
    From $7,460.00
    $7,460.00 - $11,105.00
    $7,460.00

    Grundfos Hydro SOLO-E CRIE 5 Variable Speed Pressure Booster Pump Package (Max 160LPM)

    Grundfos Hydro SOLO-E CRIE5 Variable Speed Pressure Booster Set (Max 160LPM)  DOWNLOAD PRODUCT BROCHURE The Grundfos Hydro SOLO-E CRIE 5 is ...

    View full details
  • $3,472.76 - $13,638.45
    From $3,472.76
    $3,472.76 - $13,638.45
    $3,472.76

    Grundfos CRIE 10 Variable Speed Vertical Multistage Pumps (Max 266LPM)

    Grundfos CRIE 10 Variable Speed Vertical Multistage Pumps (Max 266LPM) The CRIE pump is an in-line, multi-stage pump with a built-in variable speed...

    View full details
  • $5,674.11 - $18,556.74
    From $5,674.11
    $5,674.11 - $18,556.74
    $5,674.11

    Grundfos CRIE 20 Variable Speed Vertical Multistage Pumps (Max 550LPM)

    Grundfos CRIE 20 Variable Speed Vertical Multistage Pumps (Max 550LPM) The CRIE pump is an in-line, multi-stage pump with a built-in variable speed...

    View full details
  • $990.00 - $990.00
    $990.00
    $990.00 - $990.00
    $990.00

    DAB E.SYBOX POP 0.30kW Variable Speed Pressure Boosting Pump (Max 65LPM/320kPa)

    DAB E.SYBOX POP 0.30kW Variable Speed Pressure Boosting Pump  DOWNLOAD PRODUCT BROCHURE  DOWNLOAD PRODUCT TECHNICAL SHEET The DAB E.SYB...

    View full details
  • $3,240.00 - $3,240.00
    $3,240.00
    $3,240.00 - $3,240.00
    $3,240.00

    Franklin Electric MH-QP 9AMH4B 1.50kW Variable Speed Constant Pressure Pump with 8L Pressure Tank & with On-Drive Configuration (Max 250LPM/470kPa)

    Franklin Electric MH-QP 9AMH4B 1.50kW Variable Speed Constant Pressure Pump   DOWNLOAD PRODUCT BROCHURE The Franklin Electric MH-QP 9AMH4B V...

    View full details
  • $2,935.00 - $2,935.00
    $2,935.00
    $2,935.00 - $2,935.00
    $2,935.00

    Franklin Electric MH-QP 5AMH7B 1.50kW Variable Speed Constant Pressure Pump with 8L Pressure Tank & with On-Drive Configuration (Max 130LPM/800kPa)

    Franklin Electric MH-QP 5AMH7B 1.50kW Variable Speed Constant Pressure Pump  DOWNLOAD PRODUCT BROCHURE The Franklin Electric MH-QP 5AMH7B is...

    View full details
  • $1,295.00 - $1,295.00
    $1,295.00
    $1,295.00 - $1,295.00
    $1,295.00

    Franklin Electric AquaDuty ADCPS75 1.50kW Variable Speed Constant Pressure Pump (Max 70LPM/500kPa)

    Franklin Electric AquaDuty ADCPS75 1.50kW Variable Speed Constant Pressure Pump   DOWNLOAD PRODUCT BROCHURE DOWNLOAD USER MANUAL The Frankli...

    View full details