Description
AT 15-15L2 — Belt-Driven Forward-Curved Centrifugal Blower
The LONGWELL AT 15-15L2 is a forward-curved (multi-wing) centrifugal blower from the AT belt-driven commercial range. Per the AT series type code, 15 is the impeller diameter designation and 15 the impeller width designation; Construction type L2 (AT series type code). The casing measures 569×609 mm housing (dimensions A–B below). Because the fan is belt-driven, the duty point is set by the pulley ratio you choose — the figures below are the operating envelope printed on the AT 15-15 catalogue performance chart, not a single rated point.
LONGWELL states the AT series covers 1,000–40,000 m³/h overall, and is characterised by compact construction, high efficiency and low noise. Catalogue performance is quoted at standard conditions (inlet pressure 101.325 kPa).
Performance envelope
| Volume flow rate | 1,500 – 18,000 m³/h |
| Total pressure Pt | 100 – 1,500 Pa |
| Rotational speed | 500 – 1,500 rpm |
| Impeller power | 0.15 – 6 kW |
| Sound pressure level | 65 – 90 dB(A) |
| Total efficiency η | up to 63% |
The catalogue performance chart shows a separate LK–RK duty zone for the K build, which extends above the standard L–R zone.
Send us your required airflow and static pressure and our engineers will return the matching speed, pulley set and motor rating.
Dimensions (mm)
| A | 569 mm |
| B | 609 mm |
| C | 404 mm |
| D | 342 mm |
| E | 495 mm |
| I | 1456 mm |
| J | 471 mm |
| K | 497 mm |
| L | 1376 mm |
| M | 130 mm |
| N | 264 mm |
| P | 384 mm |
| V | 358 mm |
| W | 70 mm |
| X | 33 mm |
| X1 | 197 mm |
| X2 | 211 mm |
| X3 | 201 mm |
| H1 | 380 mm |
| H2 | 309 mm |
| H3 | 272 mm |
| d | 30 mm |
| t | 8 mm |
| t1 | 7 mm |
Letter codes correspond to the AT series dimensional drawing shown below. All values from the LONGWELL AT series catalogue.
Performance curves
Dimensional drawing
The Company Longwell Leading Fan and Motor Innovator Worldwide
As a leading supplier of ventilation and drive technology, LONGWELL is a highly respected engineering partner in many industries. With over than 20,000 different products, we provide the right solution for every need. And we have always worked according to the highest economic and ecological standards.
LONGWELL Product Line
LONGWELL Certificate
Reviews
There are no reviews yet.