The elastomeric material and operation of these valves also allows them to self-return without weight or spring assistance.Ī pressure vessel W installed on a tee connected to the delivery port of the pump provides the pulsed flow accumulation means. This allowed the pump structure to be concentric and therefore inherently strong and upon closure of the valve, permits efficient water delivery by acting in line with the supply via a second smaller venturi effect delivery non return valve. This venturi valve is configured as a ring section positioned around the supply inlet of the pump with the delivery outlet of the pump being directly in line. The Papa ram pump utilises the low pressure generated by high velocity water flow around a curve-shaped elastomeric W valve (with low pressure loss) to allow a valve design that enables rapid closure and with a relatively small cross sectional area and low weight. The Papa ram pump is a 21st century version of the traditional Hydraulic ram pumps ( water pumps powered by nothing more than a flow of water), being smaller, lighter, cheaper and more efficient. (The Mongolfier brothers of France in 1796 are better remembered for their pioneering work with hot-air balloons). In 1929 Green & Carter acquired the patent and Easton's business and have been manufacturing and installing the Vulcan and Vacher RAMS since. James Easton purchased Montgolfier's patent and the hydraulic RAM business of Whitehurst in the 1800's and introducted the machine to England. John Whitehurst is credited with the idea of the Hydraulic Ram in 1772, though it did not become a practical machine until the French inventor Joseph Montgolfier made an automatic RAM in 1796. May need to address sedimentation issues.Large amount of excess water runoff (though normally this would be piped or ducted back to the source).No Electricity or External Power Source.6.1.1 Symptoms and possible causes for malfunction.5.4 Considerations for developing communities.
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