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Submersible motors are electric motors specifically designed for underwater use.
Publish Time：
2025-04-15
Submersible motors are electric motors specifically designed for underwater use. They are directly coupled to pumps and operate underwater.
Submersible motors are electric motors specifically designed for underwater use. They are directly coupled to pumps and operate submerged in water. These motors are used with various types of submersible pumps, forming a single unit that operates submerged in wastewater of various qualities for extended periods. The harsh operating environment necessitates a sealing structure significantly different from conventional motors.
Submersible motors are manufactured according to GB/T 2818-2002 standard and are mainly divided into four types: oil-filled, water-filled, dry, and shielded.
1. Oil-filled submersible motors: The interior is filled with mechanical oil, supported by rolling bearings at both ends, and uses a hard alloy mechanical seal at the top. It can be used in environments with a significant amount of mud and sand, and can also be used in inclined or horizontal positions.
2. Water-filled motors: These are divided into general-purpose submersible motors and special submersible motors. Key wear-resistant parts use imported materials (guide bearings, thrust bearings, etc.), enabling them to withstand high thrust and exhibit high wear resistance.
3. Dry submersible motors: These motors have a dry structure with an air-filled cavity, similar to land-based motors, resulting in a simple structure.
4. Shielded submersible motors: The motor stator is hermetically sealed within a sealed chamber formed by a thin-walled shield made of non-magnetic stainless steel, end rings, and a casing, filled with solid filler material.
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