60 Hz
Immersion Pumps STH28
Immersion Pumps
series STH use closed impellers in order to minimize power consumption and to optimize hydraulic pump efficiencies.
The STH series offers high pressures at short immersion depths. A frequency converter can be supplied for special applications or for matching the pump characteristic to a specific duty point. See page "Control/Regulation" in the Technical Information section of this catalog for further information.
Extended lengths are available. See medium pressure pumps features within the technical information section.
Closed impellers
Technical drawing
Immersion Pumps - STH28
STH28
Applications
| Types of fluid | coolants cooling/cutting oils |
| Kinematic viscosity | ...415 SSU (...90 mm²/s) |
| Pumping temperature | 30...194 °F (0...90 °C) |
Construction
| Pump body | cast iron |
| Cover | cast iron |
| Impellers | CrNi-steel |
| Shaft | CrNi-steel |
| Diffusers | CrNi-steel |
| Mechanical seal | SiC |
| O-rings | Viton |
| Noise level | 77 dBA (STH2801-1S280...STH2801-0S280) 79 dBA (STH2802-2S370) 81 dBA (STH2802-0S370...STH2803-0) |
| Type | Flow at head | Height | Depth of immersion | Weight | Power | Voltage 3 ~ |
Fre- quen- cy |
Current | Speed | ||||||||
| GPM /Feet | H inch | h inch | h mm | Lbs | kg | HP | V | Hz | AMPS | RPM | |||||||
| l/min /m | mm | kW | |||||||||||||||
STH2801-1S280  |
350/75 1300/22 |
25.3 642 |
10.71 | 272 | 247.0 | 112.0 | 10 7.48 |
230 | 60 |
|
3545 | ||||||
| 460 | 60 |
|
3545 | ||||||||||||||
| STH2801-0S280 |
350/100 1300/29 |
26.8 680 |
10.71 | 272 | 275.6 | 125.0 | 13.8 10.3 |
230 | 60 |
|
3550 | ||||||
| 460 | 60 |
|
3550 | ||||||||||||||
| STH2802-2S370 |
350/155 1300/47 |
27.1 688 |
14.25 | 362 | 330.8 | 150.0 | 20.1 15.0 |
230 | 60 |
|
3560 | ||||||
| 460 | 60 |
|
3560 | ||||||||||||||
| STH2802-0S370 |
350/200 1300/61 |
41.0 1042 |
14.25 | 362 | 390.3 | 177.0 | 30 22.0 |
460 | 60 |
|
3560 | ||||||
| STH2803-2S460 |
350/265 1300/80 |
44.3 1125 |
18.11 | 460 | 650.5 | 295.0 | 40 30.0 |
460 | 60 |
|
3560 | ||||||
| STH2803-0S460 |
350/310 1300/95 |
657.1 | 298.0 |
|
|||||||||||||