Short pressed bends are designed for building ventilation systems based on spiral and plain ducts. Seam welds improve the air tightness of the ventilation system, while the hemmed rim helps to avoid cutting injuries during handling and installation.
The piece is connected with a duct by inserting one into the other. The short bending radius helps installing the ductwork under a suspended ceiling with a limited clearance. BPKFL bends feature a female joint for direct connection to the mounting frames of various air valves (e.g. KN-RM or KWO-RML).
