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Pumps & Fountains

A wide range of pumps are available for most applications. In selecting a pump the following criteria should be considered:

  • Flow: Rate at which the pump will deliver, measured in gallons/hour (gph), gallons/min (gpm); litres/hour (l/h) or litres/min (l/m).
  • Head: Maximum height to which the pump will deliver (neglecting piping friction losses). This is also a measure of the pump's pressure.
  • Suction Lift: Needed where the water source is lower than the pump. Some pumps are not self-priming and need to be below the water source to be fed by gravity.
  • Total Head: This is the entire vertical distance from water source to the tank.
  • Horizontal Distance:Pumps cannot move water very far by suction, even if the lift involved is below it's limit. So if large distances from source to tank are involved the pump is normally located at the supply and the water pressure used. Adequate wiring must then be used to compensate for voltage drop. Large diameter pipes will minimise losses due to pipe friction. For large distances particularly if large volumes of water are required the simplest route may be to use standard 230 Vac pumps run from an inverter.
  • Power Consumption: Not the least important consideration in a remote power system!
  • Flow, Head, Pressure & Power Consumption are all related; for the same pump, the greater the lift the lower the flow and the more power used.

Submersible pumps

Pumps designed to provide water supplies in isolated locations, with no long cables to bury or electricity bills to pay.
For most drilled wells the water level will be below the suction limit of any pump, so the pump needs to be sited actually in the well itself. The best way to do this is with a submersible pump lowered into the water and positioned between the yearly maximum and minimum levels.

Surface Pumps

Used for pumping from shallow wells, water pressurisation or circulation.These solar operated pumps are designed for high reliability and life expectancy. Maintenance free brushless DC motors. Excellent efficiency.

More powerful, quieter and more durable than plastic RV/Marine pumps. Wearing parts typically last 5-10 years; overall life expectancy 15-20 years.

Pumps are supplied with IP54 weatherproof controllers suitable for either PV direct operation with integrated maximum power point tracking, or with a battery including low voltage disconnection and restart after recharge. Two inputs for dry well probe, pressure switch or tank/remote float switch. LED indicators for system status. Protected against: overload, temperature, reverse polarity, lightning.

The max. pump speed is adjustable to reduce flow rate to approx. 30% if desired. (20% for PS150).In PV direct operation the maximum PV array size is unlimited as the controller regulates max. power consumption.

Pressure switches and filters must be ordered separately.

Low Voltage Pumps

A range of small pumps for use in battery systems.These are designed for intermittent use and are ideal for irrigation, emptying tanks, transferring fluids or hosing.

They can be used in-line with a gravity feed or submerged in liquid (clean, foul or sea water). The Amazon, Congo & Nile are continuously rated (Niagara 20 min) and can pump diesel.

The Amazon can be used in hot water systems (up to 80ÂșC). Outlet is a 12m (0.5") hose barb, inlet has removable strainer with another hose barb for in-line use. Fits inside water containers or a 2" well casing. Complete with cable. Amazon & Congo supplied with cable & battery clips.

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About Us

Lepton Energy Solutions was established in 2012 dealing mainly with the Import, Export, Trade, Supply and Installation of, Water Pumps, Power Generator sets Solar Power Products, Water Treatment equipment and associated items. Our equipment are well established brands sourced from overseas manufacturers and local dealers.

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