Calpeda GQN 50 Submersible Drainage Pump without Float - Three Phase

The Calpeda GQN 50 is a heavy-duty 415V submersible wastewater pump engineered for efficient removal of dirty water and sewage in both residential and industrial environments. Featuring a high-capacity channel impeller, this robust unit is capable of passing soft solids up to 50mm, making it ideal for demanding drainage tasks and wastewater transfer systems.

With a vertical G2” threaded discharge outlet, the GQN 50 ensures smooth flow with minimal risk of clogging. Its double mechanical shaft seal housed in an oil-filled chamber offers premium protection against dry-running, making it suitable for continuous operation in submerged conditions.

This model is especially suited for situations requiring reliability, high flow rates, and the ability to handle solid-laden fluids—such as pit dewatering, stormwater sump emptying, and septic tank drainage.

APPLICATIONS

• Wastewater and stormwater drainage from domestic or industrial sites
• Emptying tanks, basins, and flooded rooms
• Rainwater collection and pit dewatering
• Pumping from ponds, sumps, and open bodies of water
• Suitable for fluids containing soft solids up to 50mm in diameter
  

PUMP FEATURES

• Single impeller with wide two-passage channel for solids handling
• Vertical discharge: G2" threaded (DN50)
• Durable construction for demanding applications
• Double mechanical seal with interposed oil chamber for dry-run protection
• Rated for continuous duty (S1) operation with submerged motor
• Includes float switch for automatic level control
• Built-in thermal protection and capacitor

PERFORMANCE

• Max Flow Rate: 800 L/min
• Voltage: 415V (three-phase)
• Max Liquid Temperature: 35°C
• Max Immersion Depth: 5 m
• Solid Handling Capacity: Up to 50 mm
• Suitable pH range: 6 – 11
• Protection rating: IPX8
• Supplied with 10 m power cable