How Pumps are Classified
Water and other liquids are used moved from one place to the other with the aid of a pump that makes the movement easy by applying pressure on the liquids. Pumps have existed in making the transport of water easy since the early Egyptian era. Due to the development of technology, pumps have seen a great improvement in the way they function in making it even more easy for them to be used to move water. There exist different varieties of pipes differentiated by their functionality and where they are used.
There are varieties of pumps but are placed in to two groups that is dynamic pumps and positive displacement pumps. Centrifugal pumps are type of dynamic pumps that operates by the difference in the fluids pressures in the outlet and inlet of the pump. The pump is fully dependent on the pressure exerted so as to be in motion depending on the difference in pressure. Centrifugal pumps is among the first pumps to be invented in use and has been in use the longest. The advancements in technology has resulted into development of more sophisticated centrifugal pumps.
Another type of dynamic pump is the submersible pump that operates when fully submerged in water. Their hydraulic action is more effective when they are in water, for example septic pumps. Fire hydrant pump uses diesel or electricity to function in pumping water or any other liquid and is also a type of dynamic pump. The fire hydrant system has parts that are designed to work in solidarity to ensure the liquids are pumped in a proper manner.
Another type of pumps is the positive displacement pumps which include the diaphragm pumps that are solely air driven. The air used to run the pump is directed in a way that it will aid the whole system to pump the liquids in a required manner. The pumps are used in ensuring that toxic liquids are moved safely to avoid any pollution. There are also gear pumps that transfer fluid through gears moving in and out of mesh creating a pumping action. They are capable of pumping water at high pressures and succeed in pumping highly viscous liquids efficiently.
Peristaltic pumps are made for mixing and blending fluids of different types to give an end product. They are used in chemical and water treatment plants and are also used in food processing industries. The piston depends on the displacement motion where the pistons never come in contact with each other creating a push and pull effect on the whole system. Piston pumps are used in factories like the chocolate factories where the pumps are used to process the end product during production.