Bianco B25VAS2 Cast Iron Automatic Submersible Drainage Pump for Flooded Irrigation with Semi-Open Impeller

Dewatering flooded irrigation areas and managing septic transfer systems requires the rugged capability of the Bianco BIA-B25VAS2. This automatic submersible unit is engineered for residential and agricultural environments, excelling in installations for lifting greywater and light slurries from collection pits. Recent design improvements prioritize ergonomic handling and structural resistance, ensuring consistent performance during heavy rainfall where liquid ingress must be managed effectively.

Delivering consistent hydraulic output, the 0.25 kW / 240v single-phase motor draws a rated current of 1.8 Amps while sustaining high operational torque. The system achieves a maximum flow of 150 L/Min and reaches a maximum head of 7.5 m, providing the pressure behavior necessary for efficient liquid evacuation from residential tanks. The asynchronous motor is rated for S1 continuous duty, ensuring mechanical stability during prolonged pumping tasks in domestic pits.

Hydraulic efficiency is driven by a single cast iron vortex impeller designed to facilitate the safe passage of solids up to 15 mm in diameter. This configuration minimizes the risk of clogging by creating a whirlpool effect that moves suspended particles away from the impeller blades without direct internal contact. The 1¼-inch discharge ensures high-volume transfer, maintaining stable volumetric efficiency while processing contaminated liquids in septic systems or garden sumps.

Mechanical construction features a high-grade cast iron hydraulic body paired with an industrial coating for superior durability in submerged service. A dual mechanical seal arrangement isolates the internal motor from the pumped media, while the in-built thermal overload provides protection against over-temperature events. The unit is rated for IP68 protection, supporting deployment in depths up to 5 metres with a 10m H07RN-F neoprene cable for secure power delivery.

FEATURES

• Integrated flexible float switch enables automatic on/off control for reliable hands-free dewatering tasks.
• Single cast iron vortex impeller handles suspended solids up to 15 mm for clog-free wastewater transfer.
• High-torque 0.25 kW motor is rated for continuous S1 duty to support extended drainage applications.
• Dual mechanical seal system provides a robust barrier against moisture ingress into the electrical stator.
• Rugged cast iron body with industrial grade coating ensures long-term resistance to abrasive particles.
• In-built auto-resetting thermal overload protector safeguards motor windings from accidental overheating.
• 10m H07RN-F neoprene power lead provides high chemical and oil resistance in aggressive water types.
• 1¼" DN discharge with universal hose tail supports versatile connection options for various hose types.