Description
The JS Pumps JST-150 KZN-L (code 011-118) is a heavy duty high flow submersible slurry pump with a built-in agitator, for sand, silt, sludge and muddy water. It delivers up to 5,910 litres per minute and a maximum head of 23.5 metres from a 15 kW motor, through a 6-inch top outlet, on a 400v three-phase supply, and passes solids up to 35 mm. It is the high flow version of the JST-150 KZN, built to shift large volumes over a moderate lift.
The standard JST-150 KZN uses the same 15 kW motor and reaches 32 m, but its maximum flow is 3,305 l/min. Choose the KZN-L when volume matters more than height. The JST-220 KZN-L is the larger high flow model, on an 8-inch outlet.
Like every KZN pump, it has a high chrome iron impeller, agitator and suction cover (wear plate) to resist abrasion, with the agitator stirring settled solids back into suspension at the inlet so they are carried out rather than left to block the pump. Double silicon carbide mechanical seals run in an oil chamber, protected by a lip seal and a shaft sleeve. The top outlet and water jacket use the pumped liquid to cool the motor, and the 4-pole motor runs at 1,500 rpm on 50 Hz with a built-in overload protector.
Features
- Up to 5,910 l/min and 23.5 m head
- 15 kW 4-pole motor, 1,500 rpm on 50 Hz, 400v three-phase
- 6″ top outlet
- Solids passage up to 35 mm
- Built-in agitator keeps solids in suspension at the inlet
- High chrome iron impeller, agitator and suction cover
- Double silicon carbide mechanical seals in an oil chamber, with lip seal and shaft sleeve
- Water jacket cooling and built-in overload protector
Applications
- Emptying lagoons, settling ponds and flooded pits
- High-volume transfer of silty water over short lifts
- River, culvert and cofferdam works
- Large excavation dewatering with sandy inflow
Built for abrasive solids such as sand, silt, grit and sludge. It is not a sewage pump for rag, wipes and fibres, and is not intended for oils, solvents or chemicals. As your total head approaches this model’s 23.5 m maximum, flow falls away, and the standard JST-150 KZN becomes the better match. A three-phase starter or control panel with motor protection is needed to run it.

The JST KZN-H and KZN-L range
| Model | Version | Outlet | Motor (kW) | Max Flow (l/min) | Max Head (m) | Max Solids (mm) | Code |
|---|---|---|---|---|---|---|---|
| JST-55 KZN-H | High head | 3″ | 5.5 | 2,205 | 20.5 | 25 | 011-088 |
| JST-75 KZN-H | High head | 4″ | 7.5 | 2,345 | 23.5 | 25 | 011-096 |
| JST-110 KZN-H | High head | 4″ | 11 | 2,585 | 29 | 35 | 011-098 |
| JST-150 KZN-L | High flow | 6″ | 15 | 5,910 | 23.5 | 35 | 011-118 |
| JST-220 KZN-L | High flow | 8″ | 22 | 5,960 | 29 | 35 | 011-120 |
All models are 400v three-phase. Flow and head are maximums from the JS Pumps performance curves. See the JST KZN-H and KZN-L range page for help choosing between them, or compare the standard JST KZN slurry pumps.





Reviews
There are no reviews yet.