Five tips that will help you to choose a submersible pump

In a submersible pump, the drive motor and electrical components are completely enclosed in a watertight and sealed compartment that enables the unit to operate while totally submerged. Because of its proximity with the liquid being pumped, less energy is required. As it is easier to push rather than ‘pull’ liquids, the submersible pump uses direct pressure to force the fluid through the hose as opposed to utilising above-ground suction power. Factors such as site access, excavation depth or height can also create suction lift challenges for most types of above-ground pump.

Electric submersible dewatering pumps offer portability, easy handling and are generally available in a power rating and capacity range that make them well suited to ground water control applications; including emergency duties. For instance, flooding, construction and mining sites, or instances where a pump with a small footprint is needed; such as when draining a sediment tank. They are also suited for applications where diesel pumps cannot be used, for example in underground mining environments or where emissions are not allowed

Providing hours, and even days, of unattended dewatering pump operation, submersible pumps can meet the demanding requirements of raising water from great depths or lowering water tables even in the toughest environments. Submersible pumps have been known to run up to 10,000 hours without attendance (although 2,000 hours is the recommended service interval). As they are sub- surface units they can continue working under ice in freezing conditions; as long as the pump is completely submerged. Where appropriate to the task, electric pumps offer environmental compatibility. For instance, quiet running is an essential feature of their performance when they are sited in populated areas or employed in night-time operations.