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DC Solar Pumps
D5 Solar
Solar Hot Water
Go Green! Save Green! with green products
How the Pump Works
The first DC spherical motor pump for direct connection to photovoltaic panels with automatic
performance optimization using Maximum Power Point (MPP) tracking will vary it’s flow and power
consumption based on the available solar energy.The D5 Solar can run off of as little as 1 watt
and will increase in speed and performance as the solar panel output increases.
The D5 Solar pump can be used for most circulation pump applications without connection to the power grid.
Highly efficient, the D5 Solar can be connected directly to a photovoltaic panel. It is characterized
by its small size, high efficiency, extremely low power consumption and its over temperature safety shut
off device. The shaftless spherical motor technology provides maintenance free and quiet service life.
This pump is also perfect for single family home thermal solar systems or any circulation pump application
where conventional power is not available.
The Principle of the Spherical Motor
Invented by Laing, it is fundamentally different from conventional canned motor pumps. The only moving
part in a spherical motor is a hemispherical rotor/impeller unit which sits on an ultra-hard, wear-resistant
ceramic ball. There are no conventional shaft bearings or seals. This eliminates bearing noise and seal
leaks. This pump is robust and has an estimated service life in excess of 50,000 hours. The D5 Solar can
be easily and safely installed by following detailed instructions from a Laing Installation Guide.
Features
 DC Spherical motor pump for direct connection to photovoltaic panels
Automatic performance optimization using MPP (Maximum Power Point) Technology
Start-up on less than 1 Watt
Long pump life (50,000 hours +)
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