Introduction: The Series is a highly reliable and widely adopted line of submersible pumps designed for the effective transfer of sewage, effluent, and wastewater. Engineered for efficiency and durability, the pump is a cost-effective solution for a broad spectrum of applications, from commercial building sump pits to municipal collection systems. Its robust construction, variety of available impeller types, and flexible installation options make it a go-to choice for contractors, engineers, and facility managers.
Installation Methods: A key feature of the series is its adaptability to different installation requirements:
- Freestanding Installation: For temporary or portable use, the pump can be placed directly on the floor of the sump or pit. It is fitted with a hose or pipe connection at the discharge port.
- Auto-Coupling Guide Rail System: For permanent installations, the pump can be equipped with an auto-coupling system. The pump slides down two guide rails and automatically docks with a pre-installed base elbow (“duckfoot”), creating a leak-proof seal with the discharge piping. This system allows for the pump to be installed and removed for maintenance without requiring personnel to enter the wet well, dramatically improving safety and convenience.
Key Features & Benefits:
- Versatile Impeller Designs: Available with a range of non-clog impellers, including vortex types for large solids, single/dual-channel types for high efficiency, and cutter types to macerate solids.
- Auto-Coupling Compatibility: Designed to seamlessly integrate with guide rail systems for safe, easy, and remote installation and retrieval from deep or hazardous sumps.
- Integrated Motor Protection: The hermetically sealed motor is protected by built-in thermal sensors to prevent overheating and a moisture detection probe in the oil chamber to provide an early warning of seal wear.
- Durable Sealing System: Employs a dual mechanical seal configuration (typically silicon carbide) in an oil bath, providing a robust and long-lasting barrier against leakage.
- Cost-Effective Reliability: Offers a proven design and durable cast iron construction that provides excellent performance and a long service life at a competitive price point.
Common Applications:
- Pumping of raw sewage from residential, commercial, and municipal collection pits.
- Drainage of wastewater from basements, parking garages, and cellars.
- Effluent transfer for septic systems and small-scale wastewater treatment facilities.
- Pumping of industrial process water containing soft solids and impurities.
- Stormwater and rainwater collection and transfer.
Understanding the Model Numbers (Example: 100QW70-15-7.5)
- 100: Nominal Diameter of Discharge Port (in mm)
- QW: Model Series (Submersible Sewage Pump)
- 70: Rated Flow Rate (in m³/h)
- 15: Rated Head (in meters)
- 7.5: Motor Power (in kW)
