Submersible Drilling Pump SP 3A-12

The Grundfos SP 3A-12 submersible drilling pump is an efficient and reliable solution for groundwater pumping, specifically designed for domestic water consumption applications and pressure boosting systems. Entirely manufactured from AISI 304 stainless steel, both the pump body and its components, this pump ensures high corrosion resistance, guaranteeing a long service life even in challenging environments. It is an ideal pump for wells and boreholes with minimum diameters of 105 mm, and can be installed both vertically and horizontally, offering great installation flexibility.

Main technical features:

• Nominal flow rate: 3 m³/h, making it suitable for domestic groundwater supply applications.
• Nominal head: 53 metres, providing the necessary pressure to supply water at different heights and configurations.
• Stainless steel construction: Both the pump and impeller are made from AISI 304 stainless steel (EN 1.4301), ensuring corrosion resistance and durable performance in adverse conditions.
• MS402 motor of 0.75 kW: This submersible motor is designed to offer high efficiency and mechanical stability. It includes sand protection, minimising wear caused by particles in the water.
• Flexible installation: The pump can be installed both vertically and horizontally, facilitating its adaptation to different types of boreholes and water systems.

High-quality materials:

The Grundfos SP 3A-12 stands out for being constructed entirely from AISI 304 stainless steel, ensuring greater durability and resistance to wear and corrosion. The impellers, pump body, and motor are made from this material, making it an ideal choice for applications in demanding environments, such as deep wells where groundwater may contain minerals or corrosive particles.

Relevant technical data:

• Pump speed: 2900 rpm.
• Maximum working pressure: 15 bar.
• Maximum allowable outlet pressure: 7.7 bar, ensuring safe and efficient operation in various applications.
• Liquid temperature range: From -15°C to 40°C, making it suitable for a wide range of environmental and climatic conditions.
• Connection type: Rp with a size of 1 1/4 inches, compatible with a wide range of piping systems.

Electrical data and protection:

• Motor type: MS402, designed for direct on-line starting (DOL), simplifying installation and maintenance.
• Nominal power: 0.75 kW, with an operating voltage of 220-240V and a network frequency of 50 Hz.
• Protection grade: IP68, ensuring the motor is completely protected against dust and water, which is essential for underground applications.
• Cable length: 1.7 metres with a flat cable type, facilitating connection and handling during installation.

Certifications and approvals:

The Grundfos SP 3A-12 pump complies with various international safety and quality standards and approvals, including CE, EAC, UKCA, and SEPRO certifications. Additionally, it is approved for potable water pumping, with certifications such as ACS and DM174, ensuring its suitability for safe and clean water supply.

Additional data:

• Net weight: 14.5 kg, facilitating handling and transport.
• Transport volume: 0.016 m³, allowing for easy storage and handling.
• Country of origin: Denmark, ensuring manufacturing under the highest European quality standards.