Small diameter, large flow, high lift, lightweight deep well pump.
Brief description: Small diameter deep well pump, small diameter large flow deep well pump, light deep well pump are based on the original deep well pump .
automatic conversion of AC and solar energy.
Dolay Pump Industry Co, Ltd factory supply screw water pump

QD multi-stage submersible pump 220V 380V high lift and large flow household deep well submersible pump
Multi-stage sand-resistant agricultural irrigation water pump

Correct way to open submersible pump.
Check whether there are cracks in the casing of the submersible pump. If there are cracks, it cannot be used.
Check whether the seals on the air vent, water drain, oil drain hole and cable joint of the submersible pump are loose.

The difference between oil filling pump and water filling pump
Oil-filled submersible motors and oil-filled submersible pumps
The motor has an oil-filled sealed structure, and the inner cavity is filled with insulating lubricating oil.

Problems that may occur if you ignore the centrifugal pump has a small water output1. Low efficiency and uneconomical.The rated flow rate of a centrifugal pump is set at the factory and cannot be changed. It is also a standard. When the actual flow rate of the centrifugal pump is lower than the rate

What is the reason for the sudden stop of the submersible pump during operation?1. Power outageSolution: Check the cause of the power outage and troubleshoot it.2. The control protection switch trips (damage or overload occurs during the operation of the submersible pump)Solution: - Measure the insu

Maintenance and upkeep of submersible pumps1. Replace sealing ringAfter long-term use in sewage media, the gap between the impeller and the sealing ring may increase, resulting in a decrease in water pump flow and efficiency. The electric switch should be turned off, the submersible pump should be l

How to maintain water pumps during the rainy season1、 Centrifugal pump-Lift the pump and hose out of the well and discharge the water inside the pump and hose.-According to technical requirements, carefully inspect the impeller, bearings, cups and other parts of the water pump. If there is any damag

How to solve the problem of mechanical seal leakage?Reason一、 Failure to first fill the pump with water during trial operation；Start the pump to run without first supplying water to the mechanical seal from the external water supply；Water shortage during operation-Inspection method: Disassemble the p

Preparation before use of submersible pump1. Check whether the cable is broken or broken. Before use, not only observe the appearance of the cable, but also use a multimeter or megohmmeter to check whether the cable is connected. There shall be no oil leakage at the cable outlet.2. Before the use of