4SP2 Series Submersible Deep Well Pump

Overview

The 4SP2 Series Submersible Deep Well Pump from Dongyin Doyin is a highly efficient and durable solution for water transfer applications. This series is specially designed to pump water from drilled deep wells, borehole wells, ponds, and lakes. Its robust construction and advanced technology make it ideal for various applications, including sprinkler irrigation, tank filling, water fountains, industrial water supply, and agricultural irrigation.

Key Features

• Wide Range Compatibility: Designed for wells over φ100mm, suitable for both residential and industrial use.
• Durable Construction: Built with AISI 304 stainless steel components for enhanced longevity.
• Versatile Applications: Ideal for use in irrigation systems, cistern tanks, water fountains, and more.
• High Performance: Supports maximum fluid temperature up to +50℃ and maximum sand content of 0.25%.
• Reliable Motor Options: Available with rewindable motors in single-phase (220-240V/50Hz) or three-phase (380-415V/50Hz) configurations.

Specifications

• Maximum Fluid Temperature: +50℃
• Maximum Sand Content: 0.25%
• Minimum Well Diameter: 4 inches
• Motor Options:
  • Single-phase: 220-240V/50Hz
  • Three-phase: 380-415V/50Hz
• Motor Standards: NEMA dimensions with ISO 9906 curve tolerance
• Control Box: Equipped with start control box or digital auto-control box

Material Composition

Pump Components

• Delivery Casing: AISI 304 Stainless Steel
• Suction Lantern: AISI 304 Stainless Steel
• Diffuser: AISI 304 Stainless Steel
• Impeller: AISI 304 Stainless Steel
• Shaft: AISI 304 Stainless Steel
• Shaft Coupling: AISI 304 Stainless Steel
• Wear Ring: Rubber

Motor Components

• External Casing: AISI 304 Stainless Steel
• Top Chuck: Available in Cast-Cu ASTM C85500, AISI 420 SS, or Cast-Iron ASTM NO.30
• Bottom Support: AISI 304 Stainless Steel
• Mechanical Seal: Special seal for deep well applications (Graphite-Ceramic)
• Shaft: AISI 304 Stainless Steel - ASTM 5140
• Seal Lubricant Oil: Food-grade oil approved for machinery and pharmaceutical use

Performance Data

• Flow Rates: Supports a range from 0.3 m³/h to 3.0 m³/h (5 l/min to 50 l/min).
• Dynamic Head: Up to 390 meters depending on the specific model.
• Power Options:
  • 0.37 kW (0.5 HP) for smaller applications
  • Up to 3 kW (4 HP) for high-performance requirements

Refer to the performance curve and table for detailed model-specific data.

Applications

• Sprinkler Lawn Irrigation
• Elevated Tank and Cistern Filling
• Industrial Water Supply
• Agricultural Irrigation
• Water Fountains

Additional Options

• Available with brass or stainless steel top chuck
• Other Voltages: Can be configured for 60Hz frequency on request
• Built-in Capacitor: For single-phase motors

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