250QJW Drainage and Sand Discharge Specialized Horizontal Submersible Pump Description:

For example: ZJ250QJW80-300/10-110KW

ZJ: Zhijiang Pump Industry enterprise standard upgraded pump model; 250 indicates applicable well diameter not less than 250 mm. Q stands for submersible (initial letters of Chinese Pinyin); J stands for well use (initial letters of Chinese Pinyin); H: indicates stainless steel submersible pump; R: indicates hot water submersible pump. W: indicates horizontal submersible pump; 80 indicates flow rate is 80 m3/h; 300 indicates head is 300 meters; /10 indicates 10-stage impeller series. 110KW indicates motor power.

Zhijiang Brand 250QJW Drainage and Sand Discharge Specialized Horizontal Submersible Applicable Scope:
Suitable for agricultural irrigation, garden watering, fountain landscapes, rainwater recycling systems, mine drainage, emergency rescue, urban water supply, and extracting underground water sources for enterprises and institutions. This equipment features low noise, high efficiency, and energy savings.
Zhijiang Brand 250QJW Drainage and Sand Discharge Specialized Horizontal Submersible Technical Parameters:
Outlet diameter is divided into three sizes based on flow rate: DN80mm, DN100mm, DN125mm. The number of fixed bolts on the unit outlet flange is: 8 pieces, model 14×55 (Grade 8.8), bolt center distance 180mm. To facilitate user installation, a matching flange (outer diameter 215mm, inner 3" 4" 5", thickness 18mm) consistent with the unit outlet is specially provided for on-site welding of the pump short pipe by the user.
Zhijiang Brand 250QJW Drainage and Sand Discharge Specialized Horizontal Submersible Permitted Media Range

1: Clear water without impurities, chilled water/cooling water, rainwater, underground water from coal mines, iron mines, metal mines, drinking water, mineral water, etc.

2: Permitted working water temperature range +5 to +25°C

3: Solid impurity content (mass ratio) not greater than 0.01%

4: pH value (acidity/alkalinity) 6.5-8.5 (except for corrosion-resistant materials like stainless steel, tin bronze, etc.)

5: Hydrogen sulfide content not greater than 1.5 mg/L

6: Chloride ion content not greater than 400 mg/L

7: The unit must operate fully submerged in water.

Zhijiang Brand 250QJW Drainage and Sand Discharge Specialized Horizontal Submersible Motor Parameters:
The submersible motor is lubricated by clean water. Before use, the motor cavity must be filled with clean water (Note: must be filled completely, otherwise it will reduce the motor's service life). Forgetting to add water will quickly burn out the motor.
Motor protection grade: IPX8
Power supply: 380V/50HZ, 660V/50HZ. If customers require special voltage or frequency, please inform us in advance.
Materials: Special materials and requirements require custom orders.
Impeller: Cast iron HT200 or tin bronze (various grades) e.g., ZCuSn3Zn8Pb6Ni1
Pump casing: Cast iron HT200 or stainless steel e.g., 2Cr13, 304, 316, 316L, 2205 duplex stainless steel, etc.
Pump shaft: Stainless steel 2Cr13 (1050°C tempering treatment, enhanced torque)
Motor seal: Rubber seal O-ring; skeleton oil seal/mechanical seal.
Motor expansion adjustment bladder rubber material.
Zhijiang Brand 250QJW Drainage and Sand Discharge Specialized Horizontal Submersible Equipment Advantages:

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

--Multi-stage impeller design results in extremely low noise

--Built-in check valve prevents water hammer impact

--High single-stage head reduces overall unit height, enhancing operational stability. Pump shaft diameter of φ38mm increases torsional resistance. Shaft bushings made of rubber material for better wear resistance, equipped with hard bushings made of imported materials (added metal outer protective sleeve, specialty product)

Supply Scope
Submersible pump unit (including pump body and submersible motor), built-in one-way check valve, one matching flange for outlet, 8 pieces of 14×55 (Grade 8.8) bolts, one operation and maintenance manual, one certificate of conformity, one packing list, and outer packaging.

The above model is for illustrative purposes only; online prices do not represent actual selling prices. Please inquire by phone for specific prices.