Calpeda GQS 40 0.45kW 240v Submersible Wastewater Drainage Pump with Vortex Impeller (Max 350LPM/80kPa)

The Calpeda GQS 40 is a high-efficiency submersible drainage pump built to handle dirty water and wastewater containing suspended solids up to 40mm in diameter. With a durable vortex impeller, vertical G1½" discharge, and rugged motor construction, this pump is ideal for light industrial, residential, and commercial dewatering tasks.

Designed for continuous duty, the GQS 40 delivers dependable performance for draining basements, sumps, ponds, stormwater pits, and storage tanks. The free-flow impeller design ensures reliable solids handling with reduced risk of clogging, while the double mechanical shaft seal with an oil chamber provides optimal protection against dry-running.

APPLICATIONS

• Wastewater and dirty water pumping in domestic and commercial settings
• Dewatering of pits, tanks, basements, and stormwater collection areas
• Rainwater harvesting and transfer systems
• Pumping water from ponds, streams, and holding reservoirs
• Suitable for liquids compatible with pump materials, including solids-laden fluid

PUMP FEATURES

• Vortex impeller with wide passage for solids up to 40mm
• Vertical threaded outlet (G1½") for compact installation
• Double mechanical seal with oil chamber for enhanced motor protection
• Robust submersible motor designed for continuous use (S1 rated)
• Includes 10m power cable (standard)

PERFORMANCE RANGE

• Max Flow Rate: 350 L/min (21 m³/h)
• Head: 0.9 to 8.8 metres
• Power: 0.45kW / 240V single-phase
• Max Pressure: 80 kPa

OPERATING CONDITIONS

• Max Liquid Temperature: 35°C
• pH Range: 6–11
• Max Immersion Depth: 5 m
• Min Immersion Depth: 275 mm
• Protection Rating: IPX8