3SD3 Series Submersible Deep Well Pump

Overview

Dongyin Doyin offers a diverse range of deep well submersible pumps, designed for efficiently transferring water from wells, ponds, lakes, and cisterns. The 3SD3 series is ideal for wells with diameters over φ75mm, ensuring reliability and performance in various applications.

Key Features

• Wide Compatibility: Designed for wells as small as 3 inches in diameter.
• High Fluid Temperature Tolerance: Handles fluids with temperatures up to +35°C.
• Durable Construction: Crafted with high-quality materials such as AISI 304 stainless steel for longevity.
• Sand Handling: Can operate with a maximum sand content of 0.25%.
• Motor Options: Available in both single-phase (220-240V/50Hz) and three-phase (380-415V/50Hz) configurations.
• Efficient Design: Pumps are engineered with casing-stressed construction for robust performance.
• ISO 9906 Compliance: Curve tolerances adhere to international standards.

Components and Materials

Pump Components:

• External Casing: AISI 304 Stainless Steel
• Delivery Casing: Options of Cast-Cu ASTM C85500 or AISI 304 Stainless Steel
• Suction Lantern: Options of Cast-Cu ASTM C85500 or AISI 304 Stainless Steel
• Diffuser: Plastic (PC)
• Impeller: Plastic (POM)
• Shaft and Shaft Coupling: AISI 304 Stainless Steel
• Wear Ring: AISI 304 Stainless Steel

Motor Components:

• 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 deep well seal (Graphite-Ceramic/TC)
• Shaft: AISI 304 Stainless Steel-ASTM5140
• Seal Lubricant Oil: Food-grade oil suitable for pharmaceutical machinery

Performance Data

The 3SD3 Series delivers exceptional performance across various operational capacities. Key performance highlights include:

• Flow Rates: Up to 3.6 m³/h (60 l/min).
• Head Range: Up to 149 meters.
• Power Options: Models available in power ranges from 0.25 kW (0.33 HP) to 1.5 kW (2 HP).

Refer to the performance curve and data tables for detailed specifications on individual models.

Optional Features

• Top Chock: Available in brass or SS304.
• Delivery Casing and Inlet Parts: Optional in SS304.
• Motor Configurations: Available in alternative voltages or 60Hz frequency.
• Single-phase Motor: Built-in capacitor option for convenience.

Applications

The 3SD3 series is suited for:

• Water extraction from deep wells
• Irrigation systems
• Domestic and industrial water supply
• Rural water management
• Pond and cistern draining

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