LEN
- Application
Water supply systems
Pressure boosting
Heating systems for commercial buildings and district heating
Cooling plants for industrial processing and air-conditioning units
General transport for industrial processes
Fire fighting system - Pump
Liquid PH value:4-10
Liquid temperature:0°C-90°C
Max head: 36.5m
Max operation pressure: 16 bar
Altitude: up to 1000 m - Motor
Insulation class：F
Protection class: IP 55
IE 2 motor as standard.IE 3 motor is available on request - Flange
EN 1092 and DIN 2576 standard - Ambient Temperature
Max. Ambient temperature:+40°C.Ambient temperature above40°C,or
installation at altitude of more than 1000 m above sea level, require the
use of an oversize motor. Because of low air density and poor cooling
effects, the motor output power P2 will be decreased. See the picture.
For example, when the pump is installed at altitude of more than 3500 m
above sea level，P2 will be decrease to 88%.when the ambient
temperature is 70°C，P2 will be decreased to 78%.
- Description
- Technical Data
- Dimensions
- Materials Table
- Ambient & Liquid Temperature
Description
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| Model | Power (kW) |
Rated Flow Q(m3/h) |
Rated Head (m) |
Max.Flow Q(m3/h) |
Min.Flow Q(m3/h) |
NPSHc (m) |
| LEN125-80-200 | 5.5 | 100 | 14.5 | 120 | 70 | 2 |
| LEN125-100-200 | 7.5 | 150 | 13.5 | 180 | 105 | 2.8 |
| Model | DN1 | a | a1 | h4 | L | l1 | l2 | l3 | DN2 | Ss | Sd | h2 | h3 | h | d | b1 | b3 | b2 | k |
| LEN125-80-200 | 125 | 125 | 100 | 468 | 1128 | 1120 | 190 | 740 | 80 | 8-ɸ18 | 8-ɸ18 | 250 | 280 | 100 | 4-ɸ24 | 380 | 440 | 490 | R3/8 |
| LEN125-100-200 | 125 | 125 | 100 | 488 | 1166 | 1120 | 190 | 740 | 100 | 8-ɸ18 | 8-ɸ18 | 280 | 300 | 100 | 4-ɸ24 | 380 | 440 | 490 | R3/8 |
| No. | Part | Material |
| 1 | Pump body | Cast iron |
| 2 | Impeller | Cast iron |
| 3 | Mechanical seal | Carbon / Silicon carbide |
| 4 | Pump cover | Cast iron |
| 5 | Bearing base | Cast iron |
| 6 | Pump shaft | Steel / AISI 304 |
| 7 | Coupling | |
| 8 | Motor | |
| 9 | Base plate | Iron |
Max. Ambient temperature: +40°C
Max. Liquid temperature: 0°C - 90°C
