Grundfos SB 3-35 A Submersible Pump

The Grundfos SB 3-35 A is a high-performance multistage submersible pump, specifically designed for pumping clean water in domestic applications, such as rainwater harvesting, agricultural irrigation, or pressure boosting in residential installations. It is a quiet and efficient alternative to surface pumps, ideal for installation in wells or tanks.

This pump is constructed with corrosion-resistant materials, such as composite and stainless steel, and is designed to operate fully submerged, significantly reducing noise levels during operation. The hydraulic body and impeller are made of reinforced technical plastic materials, ensuring durability and mechanical resistance even in demanding conditions.

The SB 3-35 A model incorporates a float switch that allows automatic operation depending on the water level, preventing dry running. It also features integrated thermal protection: if the pump overheats, it automatically stops and restarts when it returns to normal temperature.

Recommended Applications

• Rainwater collection and distribution
• Drip or sprinkler irrigation systems in agriculture
• Pressure boosting in single-family homes or small installations
• Water extraction from tanks or cisterns

Key Technical Features

• Nominal flow rate: 3.01 m³/h
• Head height: 29.2 m
• Liquid temperature: 0 °C to 40 °C
• Maximum installation depth: 10 m
• Maximum particle size: 1 mm
• Nominal pressure: PN 6
• Pump outlet: G 1"

Electrical Data

• Power consumption (P1): 0.75 kW | Rated power (P2): 0.47 kW
• Voltage: 1 × 220-240 V | Frequency: 50 Hz
• Nominal current: 3.5 A | Starting current: 12 A
• Nominal motor speed: 2800 rpm
• Protection: Class F | Protection degree IPX8
• Cable length: 15 m (type H07RN-F 3G1) with Schuko plug

Materials and Construction

• Pump body: Composite (PP-GF30)
• Impeller: Composite (PPO-20GF)
• Inlet type: With suction strainer (STRAINER)

Logistical Data

• Net weight: 12.2 kg | Gross weight: 13.2 kg
• Transport volume: 0.033 m³
• Country of origin: Italy
• International codes: VVS DK: 391361235 | RSK SE: 5858000 | NRF NO: 9040065

The Grundfos SB 3-35 A is a reliable and quiet submersible pump that offers high performance in domestic and agricultural applications. Combined with an external controller like the Grundfos PM1 or PM2, it allows for complete and efficient pump system management, adapting to any need with ease and safety.