Doyin Hybrid High Flow Submersible Pump 4SDS7

Description

The Doyin Hybrid Submersible Pump 4SDS7 is a professional-grade, high-flow water pumping system engineered for large-scale water requirements. It is a “High Flow” specialist, designed to bridge the gap between residential pumps and industrial-scale irrigation systems.

The “4SDS7” designation stands for: 4 (4-inch diameter), SD (Submersible Deep-well), S (Solar/Hybrid series), and 7 (Rated flow of 7 m3/h or 7,000 liters per hour).

1. The Hybrid Advantage

The defining feature of this pump is its Dual-Input Smart Technology. It is equipped with a high-end hybrid controller that allows the pump to use two power sources:

• DC Power: Directly from solar panels during daylight hours for zero-cost pumping.

• AC Power: From the national grid or a generator for nighttime or cloudy weather operation.

• Automatic Switching: The system can automatically switch to AC power if solar radiation drops below a certain threshold, ensuring your water supply never stops.

2. Technical Specifications

Performance varies by the motor’s power rating (from 1.0 HP to 4.0 HP), but the flow rate remains high across the series.

3. Engineering & Material Build

The 4SDS7 is built for heavy-duty environments like deep boreholes and agricultural fields.

• Corrosion Resistance: The exterior casing, motor housing, and shaft are all made of Grade 304 Stainless Steel to prevent rust and mineral buildup.

• Thermal Protection: Built-in sensors prevent the motor from overheating during continuous 24/7 cycles.

• Dry-Run Protection: The controller includes an automatic shut-off feature that stops the pump if the well water level drops, protecting the internal components from friction damage.

4. Primary Applications

1. Large-Scale Agriculture: Ideal for drip or sprinkler irrigation systems that require high volume and consistent pressure.

2. Commercial Estates & Hotels: Provides bulk water supply for apartments, schools, and hospitals where a 5 m3/h pump is too small.

3. Livestock & Ranches: Fills massive storage tanks or troughs across large properties using free solar power.

4. Off-Grid Communities: Serves as a reliable village water kiosk with the flexibility to use a backup generator.

5. Installation Guidelines

• Solar Array Sizing: For the 1500W (2HP) model, you generally need about 2.1kW to 2.5kW of solar panels to reach the full 7,000 L/h flow rate.

• Pipe Diameter: To maintain the “High Flow” performance, it is highly recommended to use a 1.5-inch or 2-inch rising main pipe. A 1.25-inch pipe will create too much friction and reduce your actual water output.

• Safety Cable: Always use a stainless steel safety cable to suspend the pump; do not rely on the electrical cable or the pipe alone.