3.5SDM4 Series Submersible Deep Well Pump

Introduction

DONGYIN Doyin presents the 3.5SDM4 Series Submersible Deep Well Pump, a reliable solution for water transfer applications. With a design tailored for wells as small as 3.5 inches in diameter, this pump is ideal for residential, agricultural, and industrial use. Whether you need to extract water from deep wells, ponds, or lakes, this pump ensures efficiency and durability.

Applications

The 3.5SDM4 Series is suitable for the following:

• Pumping water from drilled deep wells, boreholes, ponds, and lakes.
• Sprinkler lawn irrigation systems.
• Filling elevated and cistern tanks.
• Supplying water for industrial and farming operations.
• Agricultural irrigation.
• Operating water fountains.

Features

• Maximum Fluid Temperature: Operates in water up to +35°C.
• Sand Handling: Designed to handle a maximum sand content of 0.25%.
• Minimum Well Diameter: Compatible with wells as small as 3.5 inches.
• Motor Types:
  • Single-phase: 220-240V/50Hz.
  • Three-phase: 380-415V/50Hz.
• Motor Design: Includes a rewindable motor for easy maintenance.
• Accessories: Comes with either a start control box or a digital auto-control box.

The pump casing is engineered for stress resistance, adhering to ISO 9906 standards for performance accuracy.

Materials and Build Quality

Pump Components

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

Motor Components

• 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: Graphite-Ceramic, specially designed for deep well operation.
• Shaft: AISI 304 Stainless Steel (ASTM 5140).
• Seal Lubricant Oil: Certified for food machinery and pharmaceutical use.

Performance Data

The 3.5SDM4 Series offers a range of models tailored for different performance needs. For detailed performance curves and delivery data, refer to the graphs and tables above.

Optional Features

• Special mechanical seal for enhanced durability.
• Motors with other voltages or 60Hz frequency.
• Single-phase motors with built-in capacitors for ease of operation.

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