Description
The JST-8SKSS (code 011-364) is the entry model in the three-phase JST SK SS stainless steel cutter range. A 0.75 kW, 400v motor gives up to 310 litres per minute and up to 15 metres of head through a 2″ outlet, with a cutting impeller that chops soft and fibrous solids so they pass cleanly through the pump.
It is a good fit for a small corrosive sump on an industrial or farm site that already has a three-phase supply and a control panel. Being three phase, it runs from a pump control panel rather than a plug-in float. The JS-750SKSS is the single-phase 230v equivalent, and the JST-15SKSS steps up to a 3″ outlet and up to 950 l/min.
The pump body, impeller, shaft and motor casing are AISI 316 stainless steel. A single-channel impeller with tungsten carbide tips runs against a serrated suction cover, cutting soft and fibrous solids into smaller pieces before they leave the pump. Double mechanical seals with silicon carbide and carbon faces protect the motor, with lip seals keeping grit and abrasives away from them. The pump is supplied with 10 metres of power cable.
Features
- 0.75 kW motor, 400v three phase
- Up to 310 l/min and 15 m head
- 2″ outlet, solids up to 21 mm (JS Pumps figure)
- Tungsten carbide tipped cutting impeller with serrated suction cover
- AISI 316 stainless steel pump body, impeller, shaft and motor casing
- Double mechanical seals (silicon carbide and carbon) with lip seals
- Manual operation for use with a control panel
- 10 metres of power cable
Applications
- Small industrial effluent sumps on three-phase power
- Chemical and process drainage pits (check compatibility)
- Farm and dairy wash-down sumps
- Duty and standby pairs in small stainless pump chambers
This is a sewage and effluent pump, not a slurry pump. Keep sand, gravel, stones and other hard abrasive solids out of the sump, as they wear the cutting edges and seals, and check chemical compatibility with 316 stainless steel and the seal materials before pumping anything other than water-based effluent. Do not use it for flammable liquids or solvents.
The JS SK SS stainless cutter range
| Model | Supply | Outlet | Max Flow (l/min) | Max Head (m) | Motor (kW) | Code |
|---|---|---|---|---|---|---|
| JS-750SKSS | 230v single phase | 2″ | 345 | 15 | 0.75 | 011-356 |
| JS-1500SKSS | 230v single phase | 3″ | 945 | 17 | 1.5 | 011-360 |
| JST-8SKSS | 400v three phase | 2″ | 310 | 15 | 0.75 | 011-364 |
| JST-15SKSS | 400v three phase | 3″ | 950 | 17 | 1.5 | 011-370 |
| JST-22SKSS | 400v three phase | 3″ | 1,250 | 20 | 2.2 | 011-374 |
| JST-37SKSS | 400v three phase | 4″ | 1,285 | 24 | 3.7 | 011-378 |
| JST-55SKSS | 400v three phase | 4″ | 2,730 | 22 | 5.5 | 011-382 |
| JST-75SKSS | 400v three phase | 4″ | 2,935 | 24 | 7.5 | 011-386 |
Flow and head are maximums from the JS performance curve. See the JS and JST SK stainless steel cutter pump range page for help choosing between models.
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