Zhijiang Brand Integrated Design Bottom Suction Submersible Pump 
Example: 200QJX20-600/30

200 indicates that the applicable well diameter is not less than 200 mm. Q stands for submersible (the initial letter of the Chinese pinyin); J stands for well use (the initial letter of the Chinese pinyin); X indicates that the pump draws water from the lower part (the initial letter of the Chinese pinyin): 20 indicates a flow rate of 20 m3/h; 600 indicates a head of 600 meters; /30 indicates 30 stages of impellers in series.
Zhijiang Brand Integrated Design Bottom Suction Submersible Pump  is a new type of water lifting machinery carefully developed by Tianjin Zhijiang Pump Industry, widely used for water extraction from rivers and lakes; mine water supply and drainage; construction or renovation of urban water supply systems, and various regional secondary water supply systems. The QJX bottom suction pump adopts an integrated design, with a solid overall structure, simple installation and maintenance, and stable operation; high mechanical efficiency and low operating costs. The motor uses a dynamic water jacket for cooling, providing excellent heat dissipation conditions, effectively extending the motor's service life. There is no need to build a pump room or fixed lifting equipment, significantly reducing the investment in civil engineering and supporting equipment for the water supply system. The equipment operates submerged, with no noise, water leakage, or oil leakage, causing no environmental pollution, and it can be easily concealed to harmonize with the surrounding environment. Flow rate: 5-2000 m3/h Head: 10-1800 m.

Tianjin Zhijiang Pump Industry professionally provides submersible pumps for various special working conditions, with stable performance, especially strong technical expertise in bottom suction submersible pumps, timely supply, energy saving, and environmental protection. Zhijiang brand bottom suction submersible pumps have been used for years with good results and stable operation.

Zhijiang Brand Integrated Design Bottom Suction Submersible Pump Motor Parameters
The submersible motor is lubricated by clean water. Before use, the motor cavity must be filled with clean water (Note: It must be filled completely; otherwise, the motor's service life will be reduced). If water is forgotten, the motor will quickly burn out.
Motor protection level: IPX8
Power supply: 380V/50HZ  660V/50HZ

If customers require special voltage or special frequency, they need to inform us in advance.
Materials: Special materials and special requirements require customization.
Impeller: Cast iron HT200, or tin bronze (various grades) such as: ZCuSn3Zn8Pb6Ni1
Pump casing: Cast iron HT200  , or stainless steel such as: 2Gr13, 304, 316, 316L, 2205 duplex stainless steel, etc.
Pump shaft: Stainless steel 2Gr13 (1050℃ tempering treatment to enhance torque)
Motor seal: Rubber seal O-ring; skeleton oil seal/mechanical seal .
Motor expansion adjustment bladder made of rubber material.
Equipment Advantages

--Careful assembly in the factory ensures quick and reliable on-site installation

--Multi-stage impeller design, extremely low noise

--Built-in check valve to prevent water hammer impact.

--High single-stage head, which can reduce the overall unit height and increase operational stability. The pump shaft diameter is φ38mm, enhancing the shaft's torsional resistance. The shaft bush is made of natural rubber material for increased wear resistance and is equipped with a hard shaft bush made of imported material (with added metal outer protective sleeve, a specialty product).