SERRANDA A GRAVITÀ IN PLASTICA
Serranda a gravità
La serranda si apre per spinta d'aria e si chiude quando il ventilatore viene fermato.
Realizzata in plastica ABS.
Protetta da raggi UV.
Velocitá massima dell'aria 16 m/s.
CARATTERISTICHE
SU RICHIESTA
Flangia flessibile utilizzata per evitare vibrazioni nell'impianto.
Sopporte quadrato per montaggio murale dei ventilatori della serie HB. Rivestimento di finitura in polvere epossidica.
Giunto flessibile rivetto tra ventilatore e condotto. Evita la trasmissione di vibrazioni.
Dimensioni - Flange metalliche: 45mm, flangia flessibile: 60mm.
MANUFACTURING FEATURES
• Specially designed for speed frequency control in ventilation applications.
• Ultra compact, simple operation and wide range of functions.
*Dial panel incorporated. Optional EMC filter.
Certifications: CE/UL/CSA/EN/GOST/CCC.
Protection index IP20.
The selection of SFC frequency drive speed controller must be made based on the maximum intensity absorbed by the fan to be regulated. The powers (kW) and the intensity for constant load refer to the normal duty (150% overload for 60 seconds). The intensity for quadratic load admits an overload of 110% during 60s.
SFC 230: Entrance 230V I, exit 230V III
SFC 400: Entrance 400V III, exit 400V III
EMC filter incorporated for models from 47A (included)
*Lineal load rated current
**Quadratic load rated current
Interruttore avvio/arresto di sicurezza.
Utilizzato per arrestare il ventilatore prima di qualsiasi lavoro di manutenzione. Conforme alla norma IEC 947-3. Protezione IP-65.
Non-return overpressure damper for façades made of aluminum slats, which opens and closes automatically. It works with the airflow by opening during operation and closing when the fan is closed. L-shaped frame to be directly embedded. It maintains the overpressure or depression inside a room with respect to the outside or another adjoining room. They incorporate holes in the frame for fixing to the wall or duct by means of screws or rivets.
CONSTRUCTIVE FEATURES:
- Galvanized steel frame for embedding, L-shaped.
- Aluminum slats.
- Ø12 shafts in galvanized steel.
- Ø12 bronze bushings.
- Suitable for 400°/2h (not certified) and temperatures below zero.
- Suitable for speed 18 m/s and with some turbulence.