Immersion Pumps HEF301...303
Immersion Pumps
are centrifugal pumps with the impeller fitted on the driving shaft extension. They are mounted on top of the tank, 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 seal-less.
The maximum coolant level must stay a few Inches/mm below the mounting flange.
Closed impellers
Technical drawing
Immersion Pumps - HEF301...303
HEF301...303
Applications
| Types of fluid | coolants |
| Kinematic viscosity | 4.6 SSU (1 mm²/s) |
| Pumping temperature | 30...140 °F (0...60 °C) |
Construction
| Pump body | cast iron |
| Cover | cast iron |
| Impeller | cast steel |
| Shaft | steel |
| Noise level | 62 dBA (HEF301S250) 68 dBA (HEF302S320...HEF303S380) |
| 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 | |||||||||||||||
HEF301S250  |
80.0/35 300/10 |
11.6 294 |
9.84 | 250 | 39.7 | 18.0 | 1.15 0.86 |
230 | 60 |
|
3440 | ||||||
| 460 | 60 |
|
3440 | ||||||||||||||
| HEF302S320 |
80.0/74 300/20 |
13.8 350 |
12.24 | 311 | 61.7 | 28.0 | 2.3 1.75 |
230 | 60 |
|
3470 | ||||||
| 460 | 60 |
|
3470 | ||||||||||||||
| HEF303S380 |
80.0/108 300/30 |
16.1 408 |
14.61 | 371 | 79.4 | 36.0 | 3.4 2.55 |
230 | 60 |
|
3480 | ||||||
| 460 | 60 |
|
3480 | ||||||||||||||