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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.
Dampers D 200 x 100 mm
Multiple leaf air volume control damper for installation in square or rectangular air ducts.
In stock
Dampers D 500 x 120 mm
Multiple leaf air volume control damper for installation in square or rectangular air ducts.
In stock
Dampers D 500 x 150 mm
Multiple leaf air volume control damper for installation in square or rectangular air ducts.
In stock
Dampers D 500 x 80mm - Airflow Control, HVAC System, Ventilation
Multiple leaf air volume control damper for installation in square or rectangular air ducts.
In stock
Dampers DA 200 x 200 mm
Multiple leaf air volume control damper for installation in square or rectangular air ducts.
Pre-order
Dampers DA 400 x 400 mm
Multiple leaf air volume control damper for installation in square or rectangular air ducts.
In stock
Dampers DA 700 x 400 mm
Multiple leaf air volume control damper for installation in square or rectangular air ducts.
Pre-order
Dampers DA 750 x 250 mm
Multiple leaf air volume control damper for installation in square or rectangular air ducts.
In stock
DampersDA 450 x 450 mm
Multiple leaf air volume control damper for installation in square or rectangular air ducts.
Pre-order
Damprs DA 500 x 250 mm
Damper DA 500×250 mm — multiple leaf volume control damper for installation in square or rectangular air ducts. Frame in galvanised sheet steel.
Aerodynamically shaped aluminium blades with simultaneous, opposite rotation driven by plastic gears inside the frame — protected from pollution and corrosion.
Blades fitted with rubber seals for improved air-tightness.
Air leakage in closed position: Class 2 to EN 1751:1998.
Manual blade angle adjustment.
Two DA dampers can be connected (same or opposite rotation) using connection elements.
Blades are parallel to the first nominal dimension (500 mm).
Available with electric ON/OFF actuator 220V or analogue electric actuator 24V.
Pre-order
