CASB, CAAB, CAAE, CAAF (+ -X) extra-strong high-pressure centrifugal fans, up to 200 kW
Country: · Model: CASB, CAAB, CAAE, CAAF (+ -X)
The single-inlet high-pressure centrifugal fans CASB, CAAB, CAAE and CAAF are made with motors of up to 200 kW. The casing and impeller are made of sheet steel, and the impeller blades are backward-curved. They are installed in aspiration and process lines where filters and long ducts stand in the path of the air.
- Type
- single-inlet high-pressure centrifugal fan, casing and impeller of sheet steel
- Impeller
- backward-curved blades of extra-strong steel; CASB — for dusty air, CAAB/CAAE/CAAF — for clean and dusty air
- CASB — sizes / power / airflow
- 350…1400; 1.1…132 kW; up to ~87 500 m³/h (per datasheet)
- CAAB — sizes / power / airflow
- 400…1000; 2.2…200 kW; up to ~43 200 m³/h (per datasheet)
Technical specifications
| Type | single-inlet high-pressure centrifugal fan, casing and impeller of sheet steel |
|---|---|
| Impeller | backward-curved blades of extra-strong steel; CASB — for dusty air, CAAB/CAAE/CAAF — for clean and dusty air |
| CASB — sizes / power / airflow | 350…1400; 1.1…132 kW; up to ~87 500 m³/h (per datasheet) |
| CAAB — sizes / power / airflow | 400…1000; 2.2…200 kW; up to ~43 200 m³/h (per datasheet) |
| Drive | direct (impeller on the motor shaft); -X — belt with a set of pulleys, belts and guards |
| Cleaning hatch | from size 560 |
| Casing | CASB — continuously welded from size 710, above 1600 — demountable; CAAB/CAAE/CAAF — all casings continuously welded |
| Handled air temperature | −25…+90 °C; +150 °C on request; special versions up to +300 °C |
| Motor | class F, IP55, IE3; 3~ 230/400 V (up to 4 kW), 400/690 V (above 4 kW) |
| Options | stainless steel, ATEX cat. 2, ARR.8 arrangement |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
The impeller blades are made of extra-strong steel. CASB is designed for dusty air, while CAAB, CAAE and CAAF work with both clean and dusty air. The series differ from each other in the shape of the casing and impeller and in the range of operating points. In the basic version the impeller sits directly on the motor shaft. From size 560 the casing has an inspection and cleaning hatch. The CASB casing is continuously welded from size 710, and fans above size 1600 are supplied with a disassembled casing; for CAAB, CAAE and CAAF all casings are welded. The insulation class F motors run on ball bearings and have IP55 and IE3. The supply is three-phase 230/400 V up to 4 kW and 400/690 V above 4 kW, at 50 Hz. The surface is covered with polyester powder paint, which is polymerized at 190 °C.
How to choose
The size is selected by the operating point on the pressure and airflow curve, and the motor by the model code. The CASB range covers sizes 350–1400 with 2, 4 and 6 poles, a power of 1.1–132 kW (motors from 90L to 315MA) and an airflow of about 87 500 m³/h. The 2-pole CAAB range goes from 400 to 1000 with a power of 2.2–200 kW and an airflow of about 43 200 m³/h. If the airstream contains a lot of dust, CASB is taken, and for clean air CAAB, CAAE or CAAF is enough.
Request a price and lead time
CASB, CAAB, CAAE, CAAF (+ -X) extra-strong high-pressure centrifugal fans, up to 200 kW. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
What air temperature is permitted for the CASB and CAAB fans?
The standard range is from −25 to +90 °C. Versions up to +150 °C are made on request, and special ones withstand up to +300 °C.
How does CASB differ from CAAB, CAAE and CAAF?
CASB is intended for dusty air, and the other three series are also suitable for clean air. The aerodynamic design of the casing and impeller and the range of operating points also differ.
From what size does the fan have a cleaning hatch?
An inspection and cleaning hatch is provided from size 560. For a dusty airstream this is needed, because the impeller has to be cleaned regularly.
When should the -X belt drive be chosen?
When the rotational speed has to be set with pulleys rather than taken from the motor shaft. CASB-X, CAAB-X, CAAE-X and CAAF-X are supplied with pulleys, belts and guards, and other arrangements such as ARR.8 are made to order.
Is there a version for explosive atmospheres?
ATEX category 2 certification, a stainless steel version and special motor windings are offered on request.
REQUEST
Need a price, lead time or replacement?
Send us a request and we will confirm the configuration, lead time and delivery terms. We reply by email.