Single Phase Submersible Electric Pump

All flow-through parts of this pumping unit adopt thickened SUS304 stainless steel, including pump barrel, multi-layer impeller chambers and suction filter mesh. Every metal component undergoes inertization and mirror polishing to block mineral scaling and groundwater corrosion. The motor cavity forms an enclosed oil storage chamber filled with high-temperature resistant insulating lubricant oil, which is the core design of this 100QJD series pump. Multi-layer rubber composite seals achieve full underwater isolation to realize complete waterproof performance for the built-in 380V electric motor. All connecting fasteners and rotary hubs use anti-rust alloy, without any cast iron contacting water flow to avoid secondary water pollution, forming a complete corrosion-resistant body for the standard 4m3/h QJD Pump.

1. Streamlined all-stainless steel structure reduces internal hydraulic resistance and improves overall pumping efficiency for daily scattered water extraction tasks

2. Precise steady 4m³/h medium flow perfectly matches combined household life and small planting irrigation needs, avoiding unnecessary water and power waste.

3. Slim universal 4-inch outer diameter boasts wide compatibility with mainstream private boreholes, lightweight for convenient manual lowering, retrieval and filter screen cleaning without professional tools.

4. Balanced civilian-grade performance and factory direct pricing, ideal for individual retail purchase and small-batch wholesale for rural hardware stores as a cost-effective 4m3/h 100QJD Pump.

5. Advanced oil-bath motor technology constructs the complete structure of a Multistage Oil Immersed pump, evenly absorbing heat generated during medium-load operation and solving heat accumulation flaws of air-cooled dry household pumps.

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