CHT, CVT roof centrifugal smoke extraction fans 400 °C/2 h, up to ~24 700 m³/h
Country: · Model: CHT, CVT
The CHT and CVT roof centrifugal fans extract smoke at 400 °C for 2 h to EN 12101-3 (certificate 0370-CPR-1892), with a maximum airflow in the tables of about 24 700 m³/h. CHT discharges air horizontally and CVT vertically. They are installed on the roof outside the fire zone.
- Type
- roof centrifugal smoke extraction fan, installed outside the fire zone
- Fire resistance
- 400 °C/2 h to EN 12101-3, certificate 0370-CPR-1892
- Air outlet
- CHT — horizontal; CVT — vertical
- Sizes
- 200…630 (per datasheet)
Technical specifications
| Type | roof centrifugal smoke extraction fan, installed outside the fire zone |
|---|---|
| Fire resistance | 400 °C/2 h to EN 12101-3, certificate 0370-CPR-1892 |
| Air outlet | CHT — horizontal; CVT — vertical |
| Sizes | 200…630 (per datasheet) |
| Maximum airflow | up to ~24 700 m³/h |
| Handled air temperature (continuous) | −25…+120 °C |
| Impeller | backward-curved blades, galvanized steel |
| Motor | class F, IP55 (single-phase — IP54), 1 or 2 speeds |
| Power supply | 1~ 230 V 50 Hz or 3~ 230/400 V 50 Hz |
| Ambient temperature | −25…+50 °C |
| Materials | base — galvanized steel, cowl — aluminum, bird screen |
| Versions | CHT/EC, CVT/EC — EC motors; CHT/ATEX, CVT/ATEX; ATEX cat. 3 on request |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
The base is made of galvanized sheet steel, the impeller has backward-curved galvanized steel blades, and on top there is a bird screen and an aluminum rain cowl. In continuous operation the fan handles air from −25 to +120 °C, so it is also used to extract warm air from kitchens and process rooms. The motors have insulation class F, ball bearings, IP55 protection (IP54 for single-phase) and one or two speeds. The supply is single-phase 230 V 50 Hz or three-phase 230/400 V 50 Hz, and the ambient temperature is from −25 to +50 °C. Sizes range from 200 to 630, with 4-pole and 6-pole versions. The fan works both in daily extraction mode and in emergency smoke extraction mode. On request, special windings for other voltages and ATEX category 3 certification are made.
How to choose
The discharge direction is set by the layout of the shaft leading to the roof, horizontal for CHT and vertical for CVT. The CHT/EC and CVT/EC versions have EC motors and F400 certification, so output in daily mode is regulated without an external frequency converter. CHT/ATEX and CVT/ATEX are intended for explosive atmospheres of category 2. If the fan has to operate directly in the fire zone, look at the axial roof fans HTMF and THT/ROOF. The models are available in QuickFan and as BIM models.
Request a price and lead time
CHT, CVT roof centrifugal smoke extraction fans 400 °C/2 h, up to ~24 700 m³/h. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
What fire resistance do the CHT and CVT fans have?
400 °C for 2 h to EN 12101-3, certificate 0370-CPR-1892. They are installed outside the fire zone.
How does CHT differ from CVT?
By the direction of air discharge. CHT has a horizontal outlet and CVT a vertical one.
What air temperature can be handled in daily mode?
In continuous mode from −25 to +120 °C. For this reason the fan is also suitable for warm air from kitchens.
What is the power supply of these fans?
Single-phase 230 V 50 Hz or three-phase 230/400 V 50 Hz, depending on the model. The motors are IP55, and single-phase ones IP54.
Can output be regulated without a frequency converter?
Yes, in the CHT/EC and CVT/EC versions with EC motors and F400 certification.
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.