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Waterladder pump

A waterladder pump

A waterladder pump, water ladder, dragon spine, dragon wheel or rahad is a low lift pump which is composed of sprockets that moves a chain with paddles over a trough. Water is pumped as the paddles push the water up the trough.

ApplicationEdit

The water ladder, as many low lift pumps, is commonly used for irrigation purposes and for drainage of lands. It is currently still used by farmers in south-east Asia.

AdvantagesEdit

The water ladder was built as an alternative to the paddle wheel to get around the problem that to lift water to a greater height, a bigger wheel is needed. [1]Despite the emergence of new pumps that operate on other principles, the water ladder remains an important tool as some of its other benefits are that they can be built and repaired easily at a very low cost. This is possible as all the components can be built from local resources, such as wood; which can be obtained and shaped into the desired form easily.

DisadvantagesEdit

As mentioned before, the pump only allows the lifting of water over a small height. This makes it unsuitable to water drainage or irrigation over larger height differences or many other pumping applications besides drainage and irrigation.

ReferencesEdit

See alsoEdit

Wikipedia
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The original article was at Waterladder pump. The list of authors can be seen in the history for that page. The text of Wikipedia is available under the CC-BY-SA 3.0 license.


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