3.5SDM3 Series Submersible Deep Well Pump

Introduction

The 3.5SDM3 Series Submersible Deep Well Pump by Dongyin Doyin offers superior water transfer solutions for a range of applications. Designed for wells, ponds, lakes, and cisterns, the 3.5SD series ensures reliable water supply for domestic, civil, and industrial use. Its robust build and advanced features make it ideal for garden irrigation and other demanding water supply needs.

Applications

• Water Supply: Perfect for wells or reservoirs.
• Domestic Use: Reliable for household water needs.
• Civil and Industrial Applications: Versatile for different sectors.
• Garden and Irrigation: Efficient for watering and maintenance.

Key Features

• Temperature Handling: Maximum fluid temperature of +35°C.
• Sand Content Capacity: Handles a sand content of up to 0.25%.
• Well Compatibility: Suitable for wells with a minimum diameter of 3.5 inches.
• Motor Options:
  • Single-phase: 220-240V/50Hz.
  • Three-phase: 380-415V/50Hz.
• Control Options: Equipped with start control box or digital auto-control box.
• Durability: Casing-stressed pump design ensures long-lasting performance.
• Precision Standards: Curve tolerance according to ISO 9906.

Build and Materials

Pump Components

• External Casing: AISI 304 Stainless Steel.
• Delivery Casing: Cast-Cu ASTM C85500.
• Suction Lantern: Cast-Cu ASTM C85500.
• Impeller: Plastic (POM).
• Difuser: Plastic (PC).
• Shaft: AISI 304 Stainless Steel.
• 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 Graphite-Ceramic deep well seal.
• Lubricant: Food-safe oil.

Optional Features

• Material Variants: Top chock available in brass or SS304; delivery casing and inlet parts available in SS304.
• Frequency Options: 60Hz frequency options available.
• Enhanced Motors: Single-phase motors with built-in capacitors.

Performance Overview

The 3.5SDM3 Series offers an extensive range of performance capabilities, as shown in the included performance curve and data table. With models ranging from 0.25 kW to 3.7 kW, these pumps are designed to handle a flow rate up to 4.8 m³/h and a maximum head of 265 meters.

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