The use of Concrete Volute Pumps helped keep costs down as the casing and suction draft tube are in concrete, with only rotating parts made of metal. This is a revolutionary concept. 

Increasingly irregular monsoon rains, growing populations, and rising energy tariffs, leave municipal officials with the ever greater challenge of meeting urban water demand in a cost effective manner. Often options are limited, and many Indian municipalities must pump water over long distances, requiring the costly conveyance infrastructure and elevated energy costs associated with these systems. Municipalities without the means to make these investments are forced into the difficult situation of simply not meeting user needs, often supplying water just a few days each week. This work seeks to develop the capacity of local officials charged with managing water systems to improve the efficiency of these systems in order to make use of existing water resources currently being wasted due to leaks and other system inefficiencies.

The country’s annual requirement of water is projected to increase from 634 billion cubic meters to 813 billion cubic meters by 2025. Future trend is getting shifted from excess water to scarcity. It is no secret why floods and droughts occur in India - because some parts of the country receive much more than normal rainfall leading to floods, at the same time, large chunks of peninsular India receive less than normal rainfall, leading to droughts. We cannot control rainfall in India. But we could manage the manner in which rainwater is allocated. It is a distribution issue; and like most distribution problems, it has to be solved by removing the demand and supply side bottlenecks. The government’s grand proposal, which seeks to retrieve floodwater going waste to the sea and distributing it to water-scarce areas, will link 37 rivers through 31 links and 9,000 km of canals. If we add to this the problem of shifting patterns of precipitation and run-offs associated with climatic change, as well as an inability to predict and manage the quantity and quality of water, we have a king-sized crisis during bad years. It is observed that poverty level of areas with excess water is much bigger problem than areas of less water. Concrete Volute Pumps are turning out to be a revolutionary development in pump industry. As the casing is constructed in cement concrete at site, it is the most suitable pumping option from techno-economic consideration for handling large volumes of water. It also guarantees strength and rigidity, while it virtually eliminates the problems of corrosion and erosion. It also ensures higher efficiencies over a sustained period of operation and highest reliability of the order of 99.95%. The CV pumps are proved to be more economical in case of high-flow saline water application. 

A simple, mechanical design is the major advantage of the Concrete Volute Pump (CVP). Replacement of any part is quite easy– although there is no likelihood of such eventuality as the pumps are guaranteed to work virtually maintenance free....for more than a 100 years! Techno-economically, a CVP is the most suitable pump for handling large volumes of water as it guarantees strength and rigidity, virtually eliminating the problems of corrosion and erosion.