Collar

Definition

A collar is a compression ring around a small circular opening, providing reinforcement and support.

Purpose

The purpose of a collar is to strengthen and stabilize the area around an opening, ensuring that it can bear loads and maintain structural integrity without deforming or failing.

Examples of Use

• In plumbing, collars are used around pipe penetrations to secure and seal the opening.
• Structural steel frameworks use collars around bolt holes to distribute the load and prevent deformation.
• In masonry, collars can be used to reinforce openings for conduits or other penetrations.

Related Terms

• Gasket: A sealing material placed between two surfaces to prevent leakage.
• Sleeve: A tubular section used to protect or guide pipes and cables through openings.
• Reinforcement Ring: Similar to a collar, used to strengthen openings and prevent wear and deformation.

Notes

Collars must be appropriately sized and installed to ensure they provide the necessary support and reinforcement for the specific application.