Overview:
The ALNS series double suction centrifugal pumps are the products that our company develops according to market needs, which absorbed advanced technology. Its salient features are: energy efficient, cavitation resistance is excellent for a wide range, simple structure, easy maintenance, the impeller can be repeatedly cut, the performance of a broader range.
Usage:
Main uses: High-rise buildings, fire protection, refrigeration systems and industrial, agricultural, hotel, deep well pumping water, fresh water and sea transport etc.
Model Meaning:
AL NS 800 – 20 M J / A - F
AL: AOlI brand single stage double suction pump
NS: new generation of split casing type
800: inlet diameter (mm)
20: 1/10 of nominal specific speed for impeller
M: impeller type, M-original impeller, N-correcting impeller
J: speed decreased type no mark for standard one
A: first trim of impeller
F: special type, the rotation direction is anti-clockwise (standard type: no mark).
Structure Drawing:
Parameters Data:
| Model | Impeller dia. | Rated flow | Rated head | Motor power | Inlet | Outlet | Eff. | NPSH | Pump Head weight | speed | |
| (mm) | (m3/h) | (m) | (kW) | (mm) | (mm) | % | m | kg | (r/min) | ||
| ALNS250-13M-285 | A | 268 | 456 | 22 | 37 | 250 | 200 | 84.0 | 3.2 | 440 | 1480 |
| ALNS250-13M-285 | B | 251 | 427 | 19 | 30 | 250 | 200 | 83.0 | 3.1 | 438 | 1480 |
| ALNS250-13M-285 | C | 234 | 398 | 17 | 30 | 250 | 200 | 81.0 | 2.9 | 436 | 1480 |
| ALNS250-13N-285 | 283 | 412 | 23 | 37 | 250 | 200 | 86.0 | 3.0 | 441 | 1480 | |
| ALNS250-13N-285 | A | 260 | 379 | 20 | 30 | 250 | 200 | 84.0 | 2.9 | 439 | 1480 |
| ALNS250-13N-285 | B | 249 | 362 | 18 | 30 | 250 | 200 | 82.0 | 2.8 | 437 | 1480 |
| ALNS250-13N-285 | C | 234 | 337 | 16 | 30 | 250 | 200 | 80.0 |
