Description
Submersible drainage pumps J 4, J 7 Submersible dewatering pumps -Pump away with portable drainage pumps
Key Technical Specifications:
| Electric submersible pump | J 4 W |
| Maximum submergence | 7 m |
| Protection class | IP 68 |
| pH of the pumped medium | 6.5 – 8.5 |
| Strainer hole | 6 mm |
| Motor range P2 | 0.45 kW, 1~ |
| Speed | 2’850 rpm |
| Power cable | 10 m H07RN8-F |
| Electric submersible pump | J 7 W |
| Maximum submergence | 7 m |
| Protection class | IP 68 |
| pH of the pumped medium | 6.5 – 8.5 |
| Strainer hole | 6 mm |
| Motor range P2 | 0.75 kW, 1~ |
| Speed | 2’850 rpm |
| Power cable | 10 m H07RN8-F |
Why Choose the Sulzer J 4 / J 7 Submersible Drainage Pumps?
The J 4 and J 7 are compact , lightweight submersible dewatering pumps built for tough drainage jobs on construction sites , in flooded areas , and for general water removal. Designed for portability and performance , they’re your go-to solution when fast , reliable pumping is critical.
Key Technical Specs
Power Rating:
J 4: 0.48 kW
J 7: 0.75 kW
Max Flow Rate: Up to 6 l/s (J 4) / 7.5 l/s (J 7)
Max Head: Approx. 12–15 m
Solids Handling: Max 5 mm
Weight: Around 10–12 kg
Discharge Connection: Hose or BSP/NPT thread
What Makes Them Stand Out
Slim and portable design for confined spaces
Double mechanical seal system for durability
Thermal overload protection built in
Wear-resistant components ensure long service life
Plug-and-play setup – no tools needed
Typical Applications
Construction dewatering
Basement and pit drainage
Emergency flood control
Utility maintenance work
Mobile drainage for field use
Additional Features
Corrosion- and abrasion-resistant materials
Air valve prevents dry running
Optional float switch for automatic control
Designed for continuous operation
