60 Hz
Immersion Pumps STH21
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 - STH21
STH21
Applications
| Types of fluid | coolants cooling/cutting oils |
| Kinematic viscosity | ...200 SSU (...45 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 | 74 dBA (STH2101-1S260...STH2101-0S260) 77 dBA (STH2102-2S340) 79 dBA (STH2102-0S340) 81 dBA (STH2103-2S410...STH2105-2) |
| 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 | |||||||||||||||
STH2101-1S260  |
250/60 900/20 |
23.7 601 |
10.12 | 257 | 191.8 | 87.0 | 7.7 5.75 |
230 | 60 |
|
3520 | ||||||
| 460 | 60 |
|
3520 | ||||||||||||||
| STH2101-0S260 |
250/80 900/26 |
23.7 601 |
10.12 | 257 | 191.8 | 87.0 | 8.4 6.3 |
230 | 60 |
|
3510 | ||||||
| 460 | 60 |
|
3510 | ||||||||||||||
| STH2102-2S340 |
250/140 900/44 |
26.8 680 |
13.07 | 332 | 277.8 | 126.0 | 13.8 10.3 |
230 | 60 |
|
3550 | ||||||
| 460 | 60 |
|
3550 | ||||||||||||||
| STH2102-0S340 |
250/180 900/59 |
27.1 688 |
13.07 | 332 | 324.1 | 147.0 | 20.1 15.0 |
230 | 60 |
|
3560 | ||||||
| 460 | 60 |
|
3560 | ||||||||||||||
| STH2103-2S410 |
250/240 900/76 |
38.7 982 |
16.02 | 407 | 368.2 | 167.0 | 25 18.5 |
460 | 60 |
|
3560 | ||||||
| STH2103_0S410 |
250/280 900/89 |
41.0 1042 |
16.02 | 407 | 390.3 | 177.0 | 30 22.0 |
460 | 60 |
|
3560 | ||||||
| STH2104-2S490 |
250/340 900/107 |
44.3 1125 |
18.98 | 482 | 650.5 | 295.0 | 40 30.0 |
460 | 60 |
|
3560 | ||||||
| STH2104-0S490 |
250/380 900/121 |
654.9 | 297.0 |
|
|||||||||||||
| STH2105-2S560 |
250/440 900/140 |
21.93 | 557 | 659.3 | 299.0 |
|
|||||||||||