Sewage Pumps Information

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Sewage pumps are used to pump effluents, semi-solids, and small solids in a variety of commercial, industrial, maritime, municipal, and wastewater treatment applications. These rugged, heavy-duty devices are typically made of durable materials such as stainless steel. Agitator pumps deliver kinetic energy to slurry solids surrounding the pump intake, re-suspending them in a fluid state. Centrifugal pumps apply centrifugal force to generate velocity, use rotating impellers to increase velocity, and push fluids through an outlet valve. Grinder pumps shred solids, macerator pumps empty holding tanks of sewage, and sump pumps remove unwanted water that threatens to encroach on living or equipment space. Lift stations consist of pumps, valves and electrical equipment necessary to pump water or wastewater. 


Ejector sewage pumps are used when sewage cannot flow to its destination by means of gravity at a velocity of at least 2 ft. per second. There are two basic types of ejector sewage pumps. Vertically suspended ejector pumps feature a motor that is mounted on the cover of a basin and supported by a shaft that is connected to the pump housing inside the basin. By contrast, close-coupled submersible ejector pumps use a motor that is connected directly to the pump housing and impeller by a short shaft and submerged completely inside the basin. Typically, both types of ejector pumps are used to move sewage from buildings to sewage systems and from sewage systems to treatment plants. 

Features Available

Sewage pumps are available with a variety of features and can move media either vertically or horizontally, depending on the direction of the pump stator / rotor assembly. Continuous duty pumps maintain performance specifications at 100% duty cycle. Run dry capable pumps can operate without pumped fluid or external lubrication for an extended period of time. Some sewage pumps include a backup battery, grinding mechanism, control panel, level control device, thermal overload protection, or suction. Other wastewater pumps are close coupled, explosion-proof, corrosion resistant, self-priming, or portable. Multistage, plug-in, and washdown duty capable devices are also available. Non-clog pumps are configured to pump sticky or stringy materials. 


Important specifications for sewage pumps include maximum discharge flow, maximum discharge pressure, inlet size, discharge size, and horsepower. Power sources include alternating current (AC), direct current (DC), compressed air, gasoline, diesel fuel, hydraulic systems, natural gas, steam, water, and solar energy. Pumps that do not include a power source typically provide a drive shaft for connection to a motor. Manually powered pumps rely upon hand or foot power.

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