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Rope pump

No change in size, 00:47, 10 December 2013

→‎Design

* Type of well: dug well of 3 metres to borehole of 6 to 20 cm diameter

The Rope pump can be made in any country since the design can be adapted to the materials that are locally available. After due training it can be produced, by small or medium metal companies or blacksmiths that have a welding machine and standard hand tools. Although simple does not mean easy. It is essential to build the pump with 10 basic design rules. (See [http://www.ropepumps.org ropepumps.org ] FAQs). In general, training is needed for good quality in production and, as important, good installation.

The pump frame is made of galvanized pipes or mild steel. The handle is a galvanized steel pipe with metal bushings (there are also designs with ball bearings, or wooden bushings). The pulley wheel is made of the sides of a used car tire and mounted with clamps and spokes on the handle. The wheel should have a sharp 'v' shape to get a good traction on the rope. The ropes are made of Polyethylene, Polypropylene, or Polyamide fibers varying from Ø 4 to Ø 8 mm. Natural fibers are not suitable, as they will stretch when wet, and degrade too fast. The pistons are made of the side of the siude of a used car tire or injection molded HD polyethylene. The rising main are PVC pipes with wall thickness of 1.5 to 2 mm and diameters of 20 to 50 mm (depending on depth of the water level). The guide box is made of concrete (with a ceramic piece or small glass bottle as turning point), galvanized pipe or wood with a PVC turning point.

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