Flange

摘要

A flange adapted to be arranged on a tube. A plurality of flange parts fit together to define a flange having a central opening for surrounding the outer perimeter of a tube. Each of the flange parts defines at least a portion of the central opening. Each flange part is provided on its surface portion which defines at least a portion of the central opening with at least one protrusion for engaging a corresponding groove in an associated tube in a form-fitting relationship.