Advanced above-ground pumps with automatic air evacuation capability for suction lift applications. Ideal for municipal lift stations, industrial processes, and emergency pumping where flooded suction is not possible.
Self-priming wastewater pumps solve the fundamental challenge of centrifugal pump operation in suction lift applications by automatically evacuating air from both the pump casing and suction piping. Unlike standard centrifugal pumps that require flooded suction conditions, self-priming pumps can start dry and establish their own prime, making them essential for above-ground installations.
These pumps combine the efficiency and reliability of centrifugal pump technology with specialized priming chambers and internal recirculation systems that enable operation with suction lifts up to 25 feet. This capability makes them ideal for pump stations where the pump must be located above the wet well, emergency applications, and portable pumping systems.
No manual priming required - pumps start automatically when called upon by control systems.
Handle suction lifts up to 25 feet, enabling flexible pump station design.
Above-ground installation provides full access for inspection and service.
Centrifugal pump efficiency once primed, typically 70-85% at design point.
Enhanced volute design with integral priming chamber that retains liquid after shutdown to enable rapid repriming on restart.
Separate priming reservoir maintains liquid supply for pump priming, ensuring reliable operation even after extended shutdown periods.
Mechanical vacuum pump or ejector system actively removes air from the pump and suction piping for rapid, reliable priming.
| Flow Rates | 50-1,500 GPM Municipal: 200-1,000 GPM typical |
| Head Capacity | Up to 120 feet total head Typical range: 25-80 feet |
| Suction Lift | Up to 25 feet vertical lift Typical: 10-20 feet practical |
| Priming Time | 2-10 minutes typical Depends on suction line volume |
| Solids Handling | 1-3 inches spherical solids Varies by impeller design |
| Motor Sizes | 5-150 HP Three-phase standard |
| Efficiency | 70-85% at design point Decreases at part load |
| Temperature Range | 32-140°F standard Higher temps available |
| Pump Casing | Cast iron or ductile iron Stainless steel available |
| Impeller | Cast iron, bronze, or SS Open, semi-open, or closed |
| Shaft | 416 or 17-4 PH stainless steel Oversized for reliability |
| Mechanical Seal | Silicon carbide faces Cartridge design preferred |
Above-ground pump installations where the pump must be located higher than the wet well for maintenance access or flood protection.
Manufacturing facilities requiring reliable pumping of process wastewater, cooling water, and industrial fluids from collection sumps.
Temporary and emergency pumping applications where quick deployment and automatic operation are essential for flood control and bypass pumping.
Large commercial and institutional facilities requiring reliable wastewater pumping from basement levels or below-grade areas.
Our self-priming pump systems deliver dependable performance for challenging suction lift applications. From municipal lift stations to industrial processes, we provide proven solutions that eliminate priming problems and ensure reliable operation.