The clamping bore axis of the flanged connector clamps EN 146.9 lies on a plane parallel to the surface of the flange. It holds typical construction tubes with full surface contact over the entire cross-section of the bore.
At the screw location z, the socket cap screw reduces the bore cross-section for clamping. Adapter bushings EN 290 can be used to reduce the bore cross-sections to a smaller diameter.
For clamping without tools, the socket cap screw can be replaced by one of the adjustable levers GN 911.9 listed in the table as accessories.
The plastic used in version VDB is made from blue, visually detectable and FDA compliant plastic granulate as per FDA CFR.21 and EU 10/2011.