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Ducts and components
Ductwork accessories ventilation bends reducers T-pieces | ventilation.ro
The Ductwork and Accessories range covers all the constructive elements needed to build the duct run of a ventilation installation — from the circular spiral duct forming the main trunks, to fittings enabling direction changes, branching or diameter changes, and mounting elements that fix and support the network. Rigid spiral duct: circular galvanised steel duct produced by mechanical spiralling, the most widely used for ventilation and air conditioning. Available in standard diameters from Ø100 to Ø1,000 mm and above, in 1 m or 3 m standard lengths. T-pieces: branching a circular run into two directions — equal T (same diameter on all three connections) and reducing T (smaller branch diameter). Bends: direction change at standard angles of 45° or 90°. Large-radius bends reduce pressure drop compared to tight-radius bends. Reducers: transition from one diameter to another, needed as airflow reduces along the run after each branch. Backdraught shutters: prevent air backflow through the duct when the fan is stopped. Anti-vibration flexible connection: short rubber connection between fan flange and rigid duct — eliminates vibration transmission. Mandatory at every fan connected to a rigid duct network. Rain cover: cap at the end of the external exhaust duct — prevents rain, dust and insects entering when the fan is stopped. Duct hangers/supports: metal clamps fixed to ceilings or beams to support ductwork.
HP 250 discharge reducer — to Ø250mm
HP 250 discharge reducer — galvanised steel transition accessory for connecting CF 1 HP and CF 1.5 HP fans to circular extract ductwork.
Achieves the transition from the fan's rectangular discharge connection to a Ø250 mm circular duct.
Corrosion-resistant, rated for grease vapour and elevated air temperatures from professional kitchen environments.
Dimension: 380x260 mm - for CF 1 HP or 380x300 mm - for CF 1.5 HP
In stock
HP 300 discharge reducer — to Ø300mm
HP 300 discharge reducer
Dimesions: 395×300 mm - Ø300
Pre-order
HP 350 discharge reducer — to Ø350mm
HP 350 discharge reducer — galvanised steel transition accessory for connecting CF 3 HP, CF 4 HP and CF 5.5 HP fans to Ø350 mm circular extract ductwork. Compatible with three models:
- CF 3 HP — 395×330 mm discharge → Ø350 mm
- CF 4 HP — 465×330 mm discharge → Ø350 mm
- CF 5.5 HP — 465×360 mm discharge → Ø350 mm
For high-airflow professional kitchens — large restaurants, hotels, catering facilities.
Pre-order
HP 450 discharge reducer — 600×490mm to Ø450mm
HP 450 discharge reducer — large-format galvanised steel transition accessory for connecting CF 7.5 HP fan to Ø450 mm circular extract ductwork.
Transitions from the fan's 600×490 mm rectangular discharge to a Ø450 mm circular duct.
Designed specifically for the CF 7.5 HP — the highest power model in the Casals CF HP range.
For industrial kitchens, large hotel restaurants and high-volume catering facilities with intensive production.
Pre-order
Perforated Mounting Tape — Galvanised Steel, 10m Roll | 17×0.7 mm
Perforated metal mounting tape for securing ventilation ductwork, cables, pipes and installation components. Material: galvanised steel with corrugated structure and uniformly spaced perforations. Sizes: 17×0.7 mm, supplied on a 10-metre roll — cut to any length directly on site, no special tools required.
Fast installation: fix with screws, rivets or cable ties. Compatible with circular and rectangular ventilation duct, sanitary pipework, electrical cables and lightweight steel structures.
In stock
