The Pressure Pump and its Common Uses

Most people will be aware from personal experience that one can increase the force of the water from a hose by constricting its outlet with a thumb or purpose-built spray nozzle. The principle is a simple one. This attempt to slow its flow will boost the force exerted by the water when exiting the hose. However unrelated this phenomenon may appear, generating the necessary boost with the help of a sufficiently powerful pressure pump relies on the same principle.

Pressure PumpsAt first glance, it appears that these devices might violate the inverse relationship described earlier by their action. However, this is not the case. In some models, fluid entering the unit is drawn in and propelled forward by the action of one or more impellers with specially designed blades. An electric motor or internal combustion engine governs the speed of rotation which, in turn, determines the flow rate. In practice, the geometry of the hosing, which becomes progressively narrower towards the outlet, acts to increase the pump’s output pressure. In each case, varying the speed or adjusting an outlet nozzle, if present, provides alternative ways in which to control both parameters. Some units utilise sensors and a cut-off switch to provide automatic performance control.

There are multiple applications for these devices, both for industrial purposes and in the home. For example, when it is necessary to ensure a constant supply of feed water to a boiler or transport chemical or oil via a pipeline, the only practical solution will be to employ a pressure pump. From the powerful cutting tools and the jet washers used for heavy-duty cleaning tasks on mines to the drive-through carwash and the scaled-down hand-held devices used for cleaning the family car, each depends on some variant of this device.

On the domestic scene, powering cleaning equipment is just one of many possible applications for these units. For example, in recent years, consumers have become more conscious of the importance of conserving water and the escalating tariffs charged for the municipal supply. Many have turned to rainwater harvesting and rely on a pressure pump to access the contents of their tank. Borehole water must be pumped to the surface for use and, if it is to be used in an irrigation system, it may require a second unit to provide an additional boost.

However, many of those who still rely solely on the municipal supply often find it needs a boost, especially to ensure sufficient flow from the taps and shower upstairs. For each task, there is an appropriate model of pressure pump. For help in choosing yours, and quality products, talk to a specialist at Bestline Manufacturing.