Specifications:
The document describes pressed ventilation duct elbows designed for SPIRO ducts and regular ventilation ducts. These elbows feature a linear weld and a double EPDM rubber gasket, ensuring class D insulation according to the Eurovent standard. This design eliminates the need for additional sealing agents.

Procedures:
To connect the elbow to the ventilation duct, it should be slipped into the duct. The pressed form of the elbow results in less resistance and a lower pressure drop.

Product Identification:
The product code format is BPDL - aaa - 45, where 'aaa' represents the diameter.

Technical Data:
The document provides a table with dimensions and weights for different types of elbows:

• BPDL-100-45: Ød1 = 100 mm, L = 150 mm, Weight = 0.3 kg
• BPDL-125-45: Ød1 = 125 mm, L = 190 mm, Weight = 0.4 kg
• BPDL-150-45: Ød1 = 150 mm, L = 225 mm, Weight = 0.6 kg
• BPDL-200-45: Ød1 = 200 mm, L = 300 mm, Weight = 0.9 kg
• BPDL-250-45: Ød1 = 250 mm, L = 375 mm, Weight = 1.3 kg

Key Parameters:
The radius of the elbow (rm) is approximately 1.5 times the diameter (d1). The document also mentions volumetric flow and pressure drop (∆pt) as important parameters, although specific values are not provided.