3SD2 Series Submersible Deep Well Pump

Overview

The 3SD2 Series Submersible Deep Well Pump by Dongyin Doyin is a high-performance solution designed for transferring water from wells, ponds, lakes, and cisterns. With a compact design suitable for wells over φ75mm, this pump is perfect for domestic, civil, and industrial applications, including garden use and irrigation.

Applications

• Water supply from wells or reservoirs
• Domestic, civil, and industrial water transfer
• Garden irrigation and landscaping needs

Features

• Maximum fluid temperature: Up to +35°C
• Maximum sand content: 0.25%
• Minimum well diameter: 3"
• Rewindable motor for efficient performance
• Available in single-phase (220-240V/50Hz) and three-phase (380-415V/50Hz) options
• Equipped with a start control box or digital auto-control box
• Curve tolerance designed according to ISO 9906 standards

Materials and Construction

• Pump External Casing: AISI 304 Stainless Steel
• Delivery Casing: Cast-Cu ASTM C85500 or AISI 304 Stainless Steel
• Suction Lantern: Cast-Cu ASTM C85500 or AISI 304 Stainless Steel
• Diffuser: Plastic (PC)
• Impeller: Plastic (POM)
• Shaft and Coupling: AISI 304 Stainless Steel
• Wear Ring: AISI 304 Stainless Steel
• Motor External Casing: AISI 304 Stainless Steel
• Top Chock: Cast-Cu ASTM C85500 or Cast-iron ASTM NO.30
• Bottom Support: AISI 304 Stainless Steel
• Mechanical Seal: Special seal for deep wells (Graphite-Ceramic/TC)
• Seal Lubricant Oil: Approved for food machinery and pharmaceutical use

Performance

The 3SD2 Series features a comprehensive range of models with various capacities to meet diverse water transfer needs. Refer to the performance curve and data tables for detailed specifications on flow rate, head, and efficiency.

Optional Features

• Top chuck available in brass or SS304
• Delivery casing and inlet parts available in SS304
• Other voltage or frequency options (e.g., 60Hz)
• Single-phase motor available with a built-in capacitor

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