The Volanta Pump is a reciprocating pump driven by a large flywheel for medium to very deep wells. It uses a retractable cylinder and a seal-less stainless steel piston. A crank and a connecting rod convert the rotary motion into a reciprocating action, which is transmitted to the plunger via stainless steel pump rods. The crankshaft and the flywheel run on ball bearings mounted on a plate that can be fixed to a steel or concrete pedestal. The cylinder is of glass fibre reinforced plastic with a close-fitting seal-less stainless steel plunger. The complete cylinder can be lifted from the well by the threaded pump rods, without removing the PVC-U rising main. The stroke is adjustable to reduce the effort needed at deep installations.
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==Construction, operations and maintenance==
This pump has a good “Community Management Potential”. Simple tools are needed to pull out the pumping element, including pump rod and foot valve. The seal-less piston means that no regular replacement of worn rubber seals is required.
==Manuals, videos, and links==
* [http://www.jansen-venneboer.com/machinebouw/handpompen/volanta-pomp/ Jansen Venneboer: Volanta Pump (in Dutch).] Jansen-venneboer.com
* [http://www.handpump.org/volanta_pump/index.htm The Volanta Pump.] Handpump.org
* [http://www.practica.org/products/pumps/volanta-pump/ Volanta pump.] Practica Foundation
==Acknowledgements==
* [http://www.rural-water-supply.net/en/implementation/handpump-overview/volanta Implementation • Handpump Technology Volanta]. RWSN.
* [http://www.handpump.org/afri_pump/index.htm The Afripump]. Handpump.org
