Dewatering pumps are designed to remove water from the ground rapidly. They are built to operate in a risky environment with pipes vulnerable to rocks, tree roots, or other damage that can lead to the loss of valuable water. Dewatering pumps have many components.
Some of the components of dewatering pumps are listed below.
The Intake Screen
The intake screen is located at the bottom of the pump between the impeller and the pump housing. The intake screen is designed to stop large debris from entering the pump components. In some models, a filter prevents smaller particles from clogging the impellers or damaging internal parts. The filter traps them near the screen or diverts them away from the impellers.
Impellers are designed to efficiently move water across a pump and out of the discharge side of the pump. Impellers resemble a paddlewheel and often push water in an up and down action. The intake screen allows large objects like pebbles or tree branches to penetrate the dewatering pumps while not harming the impeller.
The Float Switches
Typically, float switches detect when a pump is full of water and must be turned off. Float switches contain a ball inside a tube, which floats up as a pump filled with water. When the ball reaches a certain level in the tube, it closes an electrical circuit that turns off the pump. Float switches are not always used in dewater pumps.
The Metering Valve
A metering valve is present on some models of dewatering pumps. Metering valves provide the power to start and stop the water flow. They also prevent too much water from entering a pump at once. This prevents the backflow of water into the supply line.
Dewatering pumps are different from other types of pumps. They have discharge valves to stop the water flow. These valves are present, so the pump does not run continuously, wasting energy and harming internal components by overheating due to friction. Since dewatering pumps are used in emergencies, turning the pump off quickly if necessary is important.