The submersible sludge pump JS 12 is excellent for pumping sludge and water mixed with solids. The pump has a slim design and low weight, which makes it easy to move and easy to handle. It can run without risk of overheating the motor or sludge clogging. 50 Hz: head max 12.5 meters, flow max 8.5 l/s. 60 Hz: head max 14 meters (46 feet), flow max 8.5 l/s (135 gpm).
 
Main benefits
Easy start – plug in without worrying about overheating
Built-in contactor connected to the thermal sensors protects the motor from overheating.
Clog-free pumping – avoid downtime with solid-proof hydraulics
Free flow vortex impeller and pump volute make the sludge pump perfect for pumping solids.
Reliability and wear resistance – one investment for years of cost-efficient pumping
Impeller and pump housing are made from wear resistant ductile iron. Vortex hydraulic minimizes load on shaft and bearings, which ensures reliable operation and maintained efficiency. Double mechanical shaft seal in oil bath with primary seal in silicon carbide ensures safe operation and long life.
Convenient handling – designed to make your life easier
Having motor parts in lightweight aluminum makes the pump very easy to handle and install.
Serviceability – save time and money with easy and on-site service 
Modular design lowers overall service costs. Easy access to the electrical junction box.
Models
JS 12 W/WKS* -104** 1~ 50 Hz
JS 12 W/WKS* -114 1~ 50 Hz
JS 12 D/DKS* -104** 3~ 50 Hz
JS 12 D/DKS* -114 3~ 50 Hz
*Option: built-in float switch, excl. 500 V
JS 12 W/WKS* -95** 1~ 60 Hz
JS 12 W/WKS* -104 1~ 60 Hz
JS 12 D/DKS* -95** 3~ 60 Hz
JS 12 D/DKS* -104 3~ 60 Hz
* Option: built-in float switch, excl. 575 V
**Impeller diameter for duty with low water level or intermittent dry running
Max. impeller diameter requires half motor or more submersed for continuous duty. (Pump can operate lying down).
Weight: D: 19 kg (42 lb), W: 20 kg (44 lb)