The standard 90˚ bends are fitted with sheet angles, have an inner
and outer rounding, and the entire product is braced by cross-wise
ribbing.
The bends are recommended for high air velocity and/or higher pressure
ventilation systems and greater sizes of side a > 400 mm.
The standard radius is r = 120 mm. The standard angle is a = 90˚.
Typical applications of the bends include rerouting the ductwork
by 90 degrees with the inner clearance varying in two planes along
the bend path. A diffuser bend does not require vanes.
The product can feature additional bracing with baffles on request.
