Name: Submersible drainage pumps J 4 J 7
Brand: Sulzer

Main benefits

Lightweight design for easy handling
Robust hydraulic design
Level control as standard
Plug-and-pump installation

Models

J 4 W medium head: 1~
J 7 W medium head: 1~

Weight; J 4: 15.3 kg, J 7: 17.3 kg

See our performance ranges

Performance curve submersible drainage pump J 4 — Performance range J 4

Performance curve submersible drainage pump J 7 — Performance range J 7

Introduction to our small drainage pumps

Lightweight pumps for use in abrasive water

The portable pumps J 4 and J 7 are designed for drainage of abrasive water from public utilities, construction sites, ships, docks and flooded areas.
The pumps offer reliable performance in harsh conditions without the need to adjust hydraulic parts.

Level control as standard

The pumps are ready for use as soon as they are delivered. They are equipped for immediate plug-in with automatic level control start by default and offer efficient dry-running protection with stainless steel cooling jacket and built-in thermal control.

Motor protection, discharge connections

Motor protection

Built-in thermal protector

Discharge connections

2'' hose connections

2'' B.S.P. threaded connections

Storz C

Storz coupling included in the Ecoline

Dimension drawing

Dimensional drawing- Submersible drainage pumps J 4 and J 7

Technical data J 4 W

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

Technical data J 7 W

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

Documents

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The world’s smartest dewatering pumps for applications in mines, construction sites and tunnels are equipped with the innovative AquaTronic. AquaTronic ensures correct motor rotation, gives motor protection, allows the pump to start via a level sensor, and gives you all the pump performance information in your PC, plus much more.
Dewatering in construction
From roads and bridges to ditches and dams, construction sites are difficult places to work. Construction site managers need solid economic reasons for purchasing equipment. Our submersible dewatering pumps provide them.
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Flood control
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