JST-55 KZN 400v Industrial Heavy Duty Pump – 011-093

Description

The JS Pumps JST-55 KZN (code 011-093) is a heavy duty submersible slurry pump with a built-in agitator, for sand, silt, sludge and muddy water. It delivers up to 2,430 litres per minute and a maximum head of 19 metres from a 5.5 kW motor, through a 4-inch top outlet, on a 400v three-phase supply, and passes solids up to 25 mm. It is the first model in the range with a 4-inch outlet and 25 mm solids passage.

The JST-55 KZN-H uses the same 5.5 kW motor with a high head pump end: up to 20.5 m on a 3-inch outlet, at a lower maximum flow of 2,205 l/min. Choose it if your lift is close to the limit of this pump. For more flow and head, the JST-75 KZN is the next size up.

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 2,430 l/min and 19 m head
• 5.5 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

• Dewatering excavations and foundations with sand and silt
• Emptying settling tanks and silt traps
• Quarry and aggregate yard sumps
• Pond, culvert and ditch silt clearance

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 close to 19 m, the flow will be small; compare the KZN-H curve before ordering. A three-phase starter or control panel with motor protection is needed to run it.

The JST KZN range

All models are 400v three-phase. Flow and head are maximums from the JS Pumps performance curve. See the JST KZN slurry pump range page for help choosing a model, or compare the KZN-H high head and KZN-L high flow versions.