Lowara 8GS07-1 Stainless Steel 4" Submersible Bore Pump for Sprinkler Systems with Floating Impeller

Reliable water supply from drilled wells and storage tanks depends on a pump that handles continuous duty without compromise. The Lowara 8GS07-1, a 4-inch submersible bore pump, combines stainless steel construction with floating impeller technology to deliver dependable performance in sprinkler irrigation, domestic water supply, and pressure boosting applications. Where groundwater contains suspended particulates, this unit maintains consistent flow without sacrificing efficiency.

Hydraulic output comes from a 0.75 kW single-phase motor operating on a 240 V supply, drawing 5.6 Amps during normal running conditions. Maximum flow reaches 183 L/Min, while maximum head extends to 26.6 metres at shut-off. For effective motor cooling, the surrounding fluid must circulate past the casing at a minimum of 8 cm/s. The motor supports up to 30 evenly distributed starts per hour, making it suitable for systems with varying demand.

Inside the hydraulic section, a floating impeller design permits the passage of suspended sand up to 150 g/m3 without damaging internal clearances. The hexagonal pump shaft ensures reliable torque transfer across the stages, while the front wear ring works with the floating impeller to improve resistance to abrasive wear. A stainless steel non-return valve integrated into the discharge head prevents reverse flow when the pump stops.

Precision-cast stainless steel upper and lower support brackets create a rigid coupling between the pump and motor, maintaining alignment under load. The casing diameter of 99 mm fits standard 4-inch boreholes, with a 50 mm threaded discharge outlet. Rated for continuous submersion in liquids up to 35°C, the complete package includes a control box and heatshrink kit for straightforward electrical terminations during installation.

KEY FEATURES & BENEFITS

• Floating hydraulic stack allows sand and abrasives to pass through without binding
• Front wear ring improves abrasion resistance in sandy groundwater conditions
• Hexagonal stainless steel shaft prevents slippage between motor and impellers
• Integrated non-return valve stops reverse flow when the pump shuts down
• AISI 304 stainless steel casing resists corrosion during long-term submersion
• Technopolymer impeller reduces starting torque for smoother motor operation
• Supplied with control box and heatshrink kit for rapid field installation