4SK Series Submersible Deep Well Pump

About the 4SK Series

The 4SK Series Submersible Deep Well Pump by Dongyin Doyin is a reliable solution for transferring water from wells, ponds, lakes, and cisterns. Designed for wells over φ100mm, this series provides efficient water lifting for various applications, ensuring durability and performance.

Key Features

• Wide Range of Applications:Suitable for well water lifting, farm irrigation, garden irrigation, living water supply, industrial water elimination, construction water supply and drainage, and breeding industry water management.
• High-Quality Materials:Equipped with brass impellers and diffusers, ensuring longevity and consistent performance.
• Optimal Operating Conditions:
  • Maximum fluid temperature: +40℃
  • Maximum sand content: 0.15%
• Motor Options:
  • Single-phase: 220-240V/50Hz
  • Three-phase: 380-415V/50Hz
  • Optional start control box or digital auto-control box available.
• Compact Design:
  • 3SK minimum well diameter: 3"
  • 4SK minimum well diameter: 4"
• Curve Tolerance:Built to ISO 9906 standards for precision.

Premium Components

The pump's components are constructed using high-grade materials to ensure optimal performance and durability:

• Delivery casing: Cast-Cu ASTM C85500
• Suction lantern: ① Cast-Cu ASTM C85500 ② AISI420 SS
• Diffuser: ① Cast-Cu ASTM C85500 ② AISI420 SS
• Impeller: Cast-Cu ASTM C85500
• Strainer: AISI 304 SS
• Motor external casing: AISI 304 SS
• Top chock: ① Cast-Cu ASTM C85500 ② AISI 420 SS ③ Cast-iron ASTM NO.30
• Bottom support: AISI 304 SS
• Mechanical seal: Graphite-Ceramic
• Shaft: AISI 304 SS-ASTM5140
• Seal lubricant oil: Oil for food machinery and pharmaceutical use

Additional Options

• Motors available for 60Hz frequencies.
• Single-phase motors come with a built-in capacitor for enhanced efficiency.

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