Immersion Pumps HEF301...303
Immersion Pumps
are plain centrifugal pumps with the impeller fitted on the driving shaft extension. They are mounted on top of the container, the pump extension being immersed in the coolant.
The HEF pump series maximizes hydraulic efficiencies with its closed impeller design.
Pump and motor form a compact and space-saving unit. The pump mechanism is gasket-less.
The maximum coolant level must stay a few mm below the mounting flange.
Closed impellers
Technical drawing
Immersion Pumps - HEF301...303
HEF301...303
Applications
| Types of fluid | coolants |
| Kinematic viscosity | 1 mm²/s (1 cSt) |
| Pumping temperature | 0...60° C |
Construction
| Pump body | cast iron |
| Cover | cast iron |
| Impellers | cast steel |
| Shaft | steel |
| Noise level | 60 dBA (HEF301/250) 66 dBA (HEF302/320...HEF303/380) |
| Type | Vol. del. at manom. del. head |
Height | Depth of im- mersion |
Weight |
Power | Voltage 3 ~ |
Fre- quen- cy |
Current | Speed | ||||||||
| l/min /m | H mm | h mm | kg | kW | V | Hz | A | 1/min | |||||||||
HEF301/250  |
300/10 | 294 | 250 | 18.0 | 0.75 | 220-240 | 50 |
|
2850 | ||||||||
| 380-415 | 50 |
|
2850 | ||||||||||||||
|
|
|||||||||||||||||
| 0.86 | 460 | 60 |
|
3440 | |||||||||||||
| HEF302/320 |
300/20 | 350 | 311 | 28.0 | 1.5 | 220-240 | 50 |
|
2880 | ||||||||
| 380-415 | 50 |
|
2880 | ||||||||||||||
|
|
|||||||||||||||||
| 1.75 | 460 | 60 |
|
3470 | |||||||||||||
| HEF303/380 |
300/30 | 408 | 371 | 36.0 | 2.2 | 220-240 | 50 |
|
2890 | ||||||||
| 380-415 | 50 |
|
2890 | ||||||||||||||
|
|
|||||||||||||||||
| 2.55 | 460 | 60 |
|
3480 | |||||||||||||