Product Description

The Pedrollo 4Block series are compact monoblock submersible borehole pumps designed for reliable clean water extraction from wells, boreholes and underground sources in domestic, agricultural and light commercial applications. Each pump features an integrated motor and pump assembly with a built‑in capacitor and thermal overload protection, allowing direct connection to single‑phase mains without a separate starter. The robust stainless‑steel construction of wetted parts enhances corrosion resistance and durability for long‑term service. The compact 4″ diameter body and supplied power cable make these pumps easy to install in narrow shafts or deep installations for water supply, pressure boosting and irrigation tasks.

Key Benefits and Features

• Monoblock design with integrated motor, built‑in starting capacitor and thermal protection simplifies installation and reduces the need for external components.
• Stainless‑steel pump housing, shaft and wetted parts enhance corrosion resistance and long service life in clean water environments.
• Compact 4″ diameter frame allows installation in narrow boreholes and confined spaces.
• Can be mounted vertically or horizontally to suit installation conditions.
• Standard power cable supplied ready for deep submerged mounting.
• Suitable for pumping thin, non‑aggressive water for domestic supply, pressure boosting, irrigation and similar applications.

Essential Specifications

• Product type: Monoblock submersible centrifugal borehole pump
• Series: Pedrollo 4Block
• Voltage: Single‑phase 220–240 V AC; 50 Hz
• Motor protection: Built‑in thermal overload
• Maximum liquid temperature: +35 °C
• Liquid type: Thin, clean water without solids
• Housing materials: AISI 304 stainless steel (casing, shaft) with Delrin/Noryl internal components
• Maximum immersion depth: Typically ~60 m
• Enclosure rating: IP68 suitable for continuous submerged use
• Typical uses: Domestic water supply, pressure boosting, irrigation support, clean water transfer