Description
The JS JST-55 400v (code 011-055) is a three-phase heavy duty submersible drainage pump for clean and dirty water. It delivers up to 1,800 litres per minute and a maximum head of 22 metres from a 5.5 kW motor, through a 4-inch outlet, on a 400v three-phase supply. This is a volume pump. It moves up to 1,800 litres per minute on a 4-inch outlet, but its published maximum head of 22 metres is lower than the JST-37’s, so for higher lifts look at the high head models.
It is a manual pump, so it runs whenever power is applied. JS states that every JST model can be made to run automatically with a three-phase control panel and float switches; see our pump controls and float switches. In the same range, the JS JST-55H is its high head version, 1,050 l/min to 32 m, and the JS JST-75 is the largest standard model, 2,000 l/min to 31 m.
Like every pump in the JST range, it has a stainless steel shaft and motor case, with a cast iron motor top cover, lower motor and seal housing, pump case, impeller and volute. Twin mechanical seals (carbon ceramic and silicon carbide) run in a lubricated chamber, and the pump comes with 10 metres of power cable. JS does not supply a hose tail with this model, so plan the outlet connection to suit your hose or pipework.
Features
- 5.5 kW motor, 400v three-phase
- Up to 1,800 l/min and 22 m head
- 4″ outlet, no hose tail supplied
- Twin mechanical seals (carbon ceramic and silicon carbide) in a lubricated chamber
- Stainless steel shaft and motor case, cast iron pump case, impeller and volute
- Manual operation, can be automated with a control panel and floats
- 10 metres of power cable
- 66 kg, 640 x 280 x 500 mm (H x W x L)
Applications
- Large-scale dewatering where volume matters more than lift
- Emptying large tanks, pits and flooded areas
- Water transfer over short, low runs
- Major flood clearance
The JST range is for clean and dirty water containing small solids such as silt, sand and grit. It is not designed for raw sewage, rag or fibrous material, heavy slurry, oil or chemicals: for sewage on a 400v supply see the JST SV sewage vortex pumps, and for sand-laden water and slurry see the JST KB slurry pumps. It needs a 400v three-phase supply and, like any standard submersible, stops drawing once the water falls below the intake.
The JS JST and JST-H 400v range
| Model | Type | Outlet | Max Flow (l/min) | Max Head (m) | Motor (kW) | H x W x L (mm) | Kg | Code |
|---|---|---|---|---|---|---|---|---|
| JST-4 | Standard | 2″ | 240 | 12 | 0.4 | 370 x 145 x 220 | 14 | 011-004 |
| JST-8 2″ | Standard | 2″ | 380 | 15 | 0.75 | 420 x 190 x 260 | 24 | 011-008 2″ |
| JST-8 3″ | Standard | 3″ | 380 | 15 | 0.75 | 420 x 190 x 280 | 24 | 011-008 3″ |
| JST-15 | Standard | 3″ | 500 | 18 | 1.5 | 440 x 190 x 280 | 28 | 011-015 |
| JST-22 | Standard | 3″ | 850 | 20 | 2.2 | 510 x 220 x 315 | 39 | 011-022 |
| JST-37 | Standard | 4″ | 1,300 | 24 | 3.7 | 525 x 220 x 320 | 44 | 011-037 |
| JST-55 | Standard | 4″ | 1,800 | 22 | 5.5 | 640 x 280 x 500 | 66 | 011-055 |
| JST-75 | Standard | 6″ | 2,000 | 31 | 7.5 | 720 x 280 x 500 | 76 | 011-075 |
| JST-15H | High head | 2″ | 450 | 23 | 1.5 | 420 x 190 x 250 | 27 | 011-019 |
| JST-22H | High head | 2″ | 650 | 30 | 2.2 | 510 x 220 x 315 | 40 | 011-023 |
| JST-37H | High head | 2″ | 850 | 35 | 3.7 | 525 x 220 x 320 | 45 | 011-039 |
| JST-55H | High head | 3″ | 1,050 | 32 | 5.5 | 640 x 280 x 500 | 66 | 011-057 |
| JST-75H | High head | 4″ | 1,600 | 40 | 7.5 | 720 x 280 x 500 | 76 | 011-077 |
Flow and head are JS Pumps’ published maximums. For a single-phase 110v or 230v pump of the same type, see the JS Heavy Duty Contractor range. See the JS JST and JST-H range page for help choosing between models and answers to common questions.
Reviews
There are no reviews yet.