Description
The JS Pumps JST-75 KZN-H (code 011-096) is a heavy duty high head submersible slurry pump with a built-in agitator, for sand, silt, sludge and muddy water. It delivers up to 2,345 litres per minute and a maximum head of 23.5 metres from a 7.5 kW motor, through a 4-inch top outlet, on a 400v three-phase supply, and passes solids up to 25 mm. It is the high head version of the JST-75 KZN, on the same 4-inch outlet.
The standard JST-75 KZN moves more water, up to 2,570 l/min, but reaches only 20.5 m. The smaller JST-55 KZN-H reaches 20.5 m on a 3-inch outlet, and the JST-110 KZN-H goes to 29 m with an 11 kW motor.
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 2,345 l/min and 23.5 m head
- 7.5 kW 4-pole motor, 1,500 rpm on 50 Hz, 400v three-phase
- 4″ top outlet
- Solids passage up to 25 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
- Basement and foundation excavations with a high lift to ground level
- Shaft and tunnel dewatering
- Pumping to settling tanks on raised ground
- Long hose runs across large sites
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. If your total head is low, the standard JST-75 KZN will move more water. 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.
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