Round tube insert, domed, Ø 25 mm, grey

The grey domed Round tube insert, Ø 25 mm is a finishing component for closing open tube ends. The convex, domed head conceals the tube opening and covers its edge, while the plastic construction provides a practical cover for the tube end.

The internal section of the insert has annular ribs that press against the tube wall and hold the component in the opening. The core with a hole forms a stem that is pushed into the tube, while the rim of the head rests against the tube end.

Applications and selection

Domed inserts with ribs are used to close round tubes and are selected according to the tube diameter and wall thickness. These dimensions determine how firmly the ribs grip inside the tube. The insert is pushed into the tube opening until the head rests against the tube end. Suitable dimensions are given in the specifications below.

The construction of the insert comprises a convex head and a ribbed stem. The head remains outside the tube and covers its edge, while the stem enters the tube.

This division into external and internal sections is typical of push-in inserts: the head limits the insertion depth, while the ribs on the stem hold the insert in the opening. The dimensions of both sections are listed in the dimensions table below.