Skip to content 
Product Description
Our company has been specializing in the research and production of LC long-shaft deep well pumps for many years. The LC long shaft deep well pumps we produce are popular in major domestic power plants, hydropower stations, water supply stations, agricultural irrigation, fire water supply, municipal engineering, and also exported to Thailand, Laos, Vietnam, etc., and has won high praise and trust from the users.
The long-shaft deep well pump is a vertical pump composed of single or several centrifugal or mixed flow impellers and diffuser casings, lifting pipes, transmission shafts, pump base, motors, and other components. The pump base and motor are located at the top of the wellhead (or cistern), and the power of the motor is transmitted to the impeller shaft through a transmission shaft concentric with the lifting pipe, thus generating flow and head.
Product Features
1.Advanced hydraulic models and structural designs are selected, resulting in excellent product performance and long service life.
2.The water pump has high efficiency, a smooth efficiency curve, a wide high-efficiency area, a wide operatingrange, and significant energy-saving effects.
3.The impeller shaft and transmission shaft are supported by copper bearings, and the radial runout of the shaft is controlled within 0.15mm. The pump operates smoothly with low noise.
4.The appearance of the pump baseis aesthetic, and the motor mountings is high, which makesit easy to repair and replace the seal.
5.Special structural design of oil lubricated closed transmission system is available, and ductile iron or various grades of stainless steel materials such as 2Cr13, 304, 316, 316L, and 416 can be selected to meet customers’ various special operating conditions and technical requirements.
Scope of Application
1.The long-shaft deep well pumpis a widely used pumping and drainage equipment, and suitable for power plants, steel plants, mines, chemical industry, fire water supply, water plants, agricultural irrigation, etc..
2.The temperature shall not exceed 80℃, thecontent ofsolids (by weight) shall not exceed 0.01%, the pH value shall be 6.5 to 8.5, the content of hydrogen sulfide shall not exceed 1.5 mg/L, and also shall be free of any oil. When used in deep wells, the well hole shall be straight, and bidirectional bending is not allowed .
3.Range of Performance (according to design:)
Maximum Flow, Q: 1200 m3/h
Highest Head, H: 250 m
Scope of Application
1.The long-shaft deep well pumpis a widely used pumping and drainage equipment, and suitable for power plants, steel plants, mines, chemical industry, fire water supply, water plants, agricultural irrigation, etc..
2.The temperature shall not exceed 80℃, thecontent ofsolids (by weight) shall not exceed 0.01%, the pH value shall be 6.5 to 8.5, the content of hydrogen sulfide shall not exceed 1.5 mg/L, and also shall be free of any oil. When used in deep wells, the well hole shall be straight, and bidirectional bending is not allowed .
3.Range of Performance (according to design:)
Maximum Flow, Q: 1200 m3/h
Highest Head, H: 250 m
Frequently Asked Questions
They should be selected based on the required flow, dynamic water level, pipeline losses, and system pressure to ensure the pump operates within its high-efficiency range.
The pump inlet must remain below the minimum operating water level with sufficient submergence to prevent air intake, vortex formation, and cavitation.
A misaligned well or discharge pipe may cause shaft misalignment, vibration, bearing wear, and excessive noise. Vertical alignment must be checked before installation.
Water-lubricated systems are suitable for clean water. Enclosed oil-lubricated systems are recommended for poor water quality, deep installation, or insufficient lubrication conditions.
Materials such as cast iron, 304, 316, or 316L stainless steel should be selected according to the liquid’s corrosiveness, chloride content, and solid particle concentration.
The standard configuration is suitable for clean liquids. For liquids containing sand, corrosive substances, or high temperatures, the materials, bearings, and hydraulic components should be specially selected.
