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Lowara Wall Mounted Hydrovar Variable Speed Drives

Lowara Wall Mounted Hydrovar Variable Speed Drives

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Lowara's NEW 5th Generation HYDROVAR is a modern, intelligent and reliable variable speed drive which takes pumping to a whole new level of flexibility and efficiency. It controls the speed of a standard IEC motor by converting the fixed voltage and frequency from the power supply line.  The system consists of a variable speed drive (VSD), a control card, sensors, EMC filters and motor/system protection.  

Pump systems are very often oversized for the application and therefore using much more energy than needed. With energy savings of up to 70% at partial loads alone, the typical investment payback period is less than 2 years, depending on energy costs and pump operating times. A motor running at 80% of it's maximum speed uses 48% less energy and slashes carbon emissions. 

The controls available include constant pressure, system curve, constant flow or via an external signal. In addition to these functions the Hydrovar can do things that are normally only performed by the most advanced computerised control systems such as: 
►Stopping the pump/pumps at zero demand
►Stopping the pump/pumps in case of water failure
►Protection against dry running
►A standard feature of a 2nd required input value that allows change over between 2 different pressure settings via an external switch
►Sensor failure and over temperature of inverter and motor which protects the pump and motor from under/overvoltage

►Motor or wall mountable
►More flexibility
►Cost savings
►Easy to commission
►Energy savings up to 70%
►Multipump capability which allows control from 1-8 pumps
►Enclosure IP 55

Models listed below are wall mounted versions. Pump/Motor mounted versions are available here

Use Lowara's Payback Calculator HERE to determine the energy and money that you'll save by installing the Hydrovar on your pumping system. 

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Delivery Costs

Delivery Map


Zone 1 England, Wales & Southern Scotland Under £100 Over £100
Standard 2/3 working days


Express Next working day


Premium Next working day (before 13.00)


Zone 2 Scottish Highlands & Islands, Northern Ireland, Isle of Man, Scilly & Channel Isles Under £100 Over £100
Standard 2/3 working days


Zone 3 Republic of Ireland Under £100 Over £100
Standard 3/5 working days




Orders must be placed before 14.00 for next day and premium next day delivery. 


Exporting Internationally

We offer a first class worldwide export service. Please contact us here for a price.
Model Voltage Power SKU Price ex-VAT Qty
HVL2.015-A0010W 230V 0.55-1.5 kW 3339-015 £1,274.70
HVL2.022-A0010W 230V 2.2 kW 3339-016 £1,512.70
HVL2.030-A0010W 230V 3 kW 3339-017 £1,810.20
HVL2.040-A0010W 230V 4 kW 3339-018 £2,022.30
HVL4.015-A0010W 400V 0.55-1.5 kW 3339-019 £1,274.70
HVL4.022-A0010W 400V 2.2 kW 3339-020 £1,512.70
HVL4.030-A0010W 400V 3 kW 3339-021 £1,810.20
HVL4.040-A0010W 400V 4 kW 3339-022 £2,022.30
HVL4.055-A0010W 400V 5.5 kW 3339-023 £2,402.40
HVL4.075-A0010W 400V 7.5 kW 3339-024 £2,871.40
HVL4.110-A0010W 400V 11 kW 3339-025 £3,248.00
HVL4.150-A0010W 400V 15 kW 3339-026 £3,355.80
HVL4.185-A0010W 400V 18.5 kW 3339-027 £3,507.00
HVL4.220-A0010W 400V 22 kW 3339-028 £3,810.80
HV3.30W 400V 30 kW 3339-012 £5,545.40
HV3.37W 400V 37 kW 3339-013 £6,295.80
HV3.45W 400V 45 kW 3339-014 £6,689.90
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Whisper Pumps Ltd, Leen Court, Boughton, Newark, Nottinghamshire, NG22 9ZD