Short pressed bends are designed for building ventilation systems based on spiral ducts and plain ducts. Seam welds provide airtightness class D without the need to use any other sealants. In ventilation and heat recuperation systems, the double EPDM gasket provides air tightness class D according to EN 12237.
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 end for direct connection to the mounting frames of various air valves (e.g. KW-S-RM or KNT-RML).
