Calpeda GQN 50 Submersible Drainage Pump with Float - Single Phase

The Calpeda GQN 50 Submersible Drainage Pump with Float is a reliable and robust solution for handling wastewater and dirty water in both domestic and industrial settings. Designed with a single impeller and a two-passage channel, it features a vertical threaded delivery port (G 2”) for efficient water discharge. The pump is equipped with a double mechanical shaft seal and an interposed oil chamber, ensuring protection against dry-running and enhancing durability. Ideal for draining rooms, emptying tanks, and extracting water from ponds, streams, or pits, it can handle solids up to 50 mm in size.

Built for continuous duty with a submerged motor, the pump operates at a maximum liquid temperature of 35°C, with a pH range of 6-11 and an immersion depth of up to 5 meters. The single-phase GQNM model includes a float switch, thermal protector, and an incorporated capacitor for reliable performance. With a 10-meter power cable and IP X8 protection, the Calpeda GQN 50 offers long-lasting performance, meeting international standards for safety and efficiency. Whether for rainwater collection or wastewater management, this pump delivers dependable results in demanding environments.

Applications

• For domestic or industrial waste water, dirty water with solids up to 50 mm grain size
• For liquids which are compatible with the pump materials
• For draining rooms or or emptying tanks
• Extraction of water from ponds, streams or pits and for rainwater collection

Operating conditions

• Maximum liquid temperature: 35 °C
• pH value: 6-11.
• Immersion depth: 5 m max
• Minimum immersion depth: 275 mm.
• Continuous duty (with submerged motor).

Motor

• Motore a induzione a 2 poli, 50Hz (n ≈ 2900 1/min).
• GQN: three-phase 230V ± 10%
• 400V ± 10%
• Cable: H07RN-F, 4G1 mm2, length 10 m, without plug.
• GQNM: single-phase 230V ± 10%
• with float switch and thermal protector.
• Incorporated capacitor
• Cable: H07RN-F, 3G1 mm2, length 10 m, with plug CEI-UNEL 47166.
• Insulation class F.
• Protection IP X8 (for continuous immersion).
• Triple impregnation humidity-proof dry winding
• Constructed in accordance with EN 60034-1, EN 60335-1, EN 60335-2-41.

Materials