JST-220KZN-L Industrial Heavy Duty Pumps 400v – 011-120

Description

The JS Pumps JST-220 KZN-L (code 011-120) 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 5,960 litres per minute and a maximum head of 29 metres from a 22 kW motor, through a 8-inch top outlet, on a 400v three-phase supply, and passes solids up to 35 mm. It is the largest high flow model, with an 8-inch outlet.

The standard JST-220 KZN uses the same 22 kW motor on a 6-inch outlet; on the JS curves it reaches the same maximum flow and a higher maximum head of 33.5 m, so compare both curves at your duty point. For smaller volumes, the JST-150 KZN-L delivers up to 5,910 l/min on a 15 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 5,960 l/min and 29 m head
• 22 kW 4-pole motor, 1,500 rpm on 50 Hz, 400v three-phase
• 8″ 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

• Large lagoon and settling pond transfer on 8-inch hose
• Flooded pit and quarry dewatering
• Major civil engineering and river works
• High-volume slurry transfer over short lifts

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. This is a large, heavy pump on a 22 kW motor with an 8-inch outlet: plan lifting gear, hose and a supply rated for its starting load. A three-phase starter or control panel with motor protection is needed to run it.

The JST KZN-H and KZN-L range

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.