ZM Water Wheel Pumps

Use water to pump water – No electricity needed! Constant water delivery and low maintenance.

ZM–MAXXI pumps can pump water horizontally up to 12,0000m (12km) or to an elevation of up to 300m (defined as Water Column Meters). A combination of distance and height is possible and advice in this regard is available from ZM Pumps’ engineers.
Depending on the availability of water and pipework, the pump’s wheel can be driven in one of three ways:
1. Water supply at top
This is the best way to drive the wheel.
The delivery pipe must be centralised with the top of the wheel no more than 10cm above the drive vanes. The delivery of water will determine the rotation of the wheel.

2. Water supply at lower level
Direct the jet at the spokes of the wheel. It is essential to utilise a larger wheel in order to optimise the water pressure available.

3. Water supply at ground level
A suitable culvert should be constructed either from brick or wood. This should be approximately the same width as the paddles on the wheel, in order to optimise the water pressure available. This method of propulsion is not very efficient and a typical rotation speed is 8–12 r.p.m. should be anticipated. To increase efficiency, multiple streams can be fed into the culvert to increase feed water volume and
thereby, pressure.

Wheels should be specified for specific water feed applications
and preferably only after a survey of the water availability has been

• The maximum vertical lift in water head possible with ZM–MAXXI
pumps is approximately 7m. Horizontally, the suction distance is
approximately 60m.
For installations exceeding 2m vertically, or a horizontal distance
more than 5m, a non return valve should be installed at the foot of
the pump.
• Pumps should always be primed with water before use, when
point of suction is more than 2m from pump.
• As a rule, 1m of vertical water lift is equivalent to 10m horizontal
• Water quality will affect the pump’s leather seals and mechanism.
Where sand and other gritty substances are carried in the water
flow, the life of the pump could be adversely effected.

For more info: Frikkie Combrink

Jo Smith

+27 11 240 6900



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