QJ
Series Submersible Deep Well
QJ series adalah mesin pemompa air yang mengintegrasikan submersible motor dan submersible pump dalam satu unit, bekerja terendam di dalam air. Pompa ini dirancang untuk beroperasi sepenuhnya terendam di dalam air dan banyak digunakan pada sistem suplai serta pembuangan air untuk irigasi pertanian, kawasan perkotaan, industri, dan pertambangan.
QJR series dirancang khusus untuk pengambilan air panas bawah tanah dengan suhu hingga 100°C. Pompa ini memiliki karakteristik tahan suhu tinggi, tahan korosi, serta memiliki ketahanan terhadap penuaan, sehingga andal untuk penggunaan jangka panjang.
Technical Specifications
| Pump Type | Submersible Deep Well Pump |
| Series | QJ Series |
| Construction | Multistage Centrifugal Pump with Integrated Submersible Motor |
| Installation | Vertical Submerged Installation |
| Pump Design | Deep Well, Borehole Type |
| Suction Type | Bottom Suction |
| Impeller Type | Multistage Radial Flow Impeller |
| Cooling Method | Water-filled Motor Cooling |
| Applications | Groundwater extraction, irrigation, municipal water supply, mining, industrial water supply, high-rise building booster systems |
| Flow Capacity | 2 – 8,500 m³/h |
| Head Range | 10 – 1,000 m |
| Motor Power | 0.75 – 630 kW |
| Pump Efficiency | 60 – 78% |
| Speed Range | 1,450 – 2,900 rpm |
| Well Diameter Compatibility | 100 – 500 mm and above |
| Outlet Diameter | DN40 – DN200 |
| Maximum Submergence Depth | Up to 80 m (standard models) |
| Hydraulic Design | Multistage high-pressure centrifugal design |
| Operating Mode | Continuous Duty (S1) |
| Motor Type | YQS Water-Filled Submersible Motor |
| Motor Configuration | Three-Phase Asynchronous Motor |
| Voltage | 380V ±5% (standard) |
| Frequency | 50 Hz ±1% |
| Speed | 1450 – 2900 rpm |
| Cooling Method | Water-filled cooling system |
| Insulation Class | Class F (typical) |
| Protection Grade | IP68 |
| Starting Method | Direct-On-Line (DOL) or Control Panel Start |
| Motor Construction | Rewindable Water-Filled Motor |
| Control System | Starter Panel or Automatic Control Cabinet Optional |
| Pump Bowl | Cast Iron / Stainless Steel |
| Impeller | Stainless Steel |
| Shaft | Stainless Steel |
| Pump Head | Stainless Steel |
| Motor Housing | Stainless Steel |
| Wear Ring | Stainless Steel |
| Fasteners | Stainless Steel |
| Bearings | Water-Lubricated Bearings |
| Liquid Type | Clean groundwater and fresh water |
| Maximum Water Temperature | ≤ 35°C (standard QJ) |
| pH Range | 6.5 – 8.5 |
| Maximum Sand Content | ≤ 0.25% |
| Maximum Solid Content | ≤ 0.1% |
| Maximum Particle Size | ≤ 0.2 mm |
| Installation Position | Vertical (Horizontal installation available for some models) |
| Minimum Well Diameter | 100 – 500 mm depending on model |
| Maximum Immersion Depth | 80 m |
| Operation Mode | Continuous |
| Outlet Connection | Flanged or Threaded |
| Outlet Diameter | DN40 – DN200 |
| Pump Outside Diameter | 95 – 480 mm (depending on model) |
| Applicable Well Diameter | 100 – 800 mm |
| Installation Type | Deep Well Vertical Installation |
| Pipe Connection | Steel Pipe, PVC Pipe, HDPE Pipe, Rubber Hose |
| Pump Configuration | Multistage Modular Assembly |
| Motor-Pump Coupling | Direct Shaft Coupling |
| Mounting Arrangement | Submerged Borehole Mounting |
