Companion angle rings are for end connections whenever a smooth interior surface or intermediate stiffing is required. Rings are manufactured from mild steel. Companion angle rings can be factory installed or shipped loose. Companion angle rings can be attached by solid weld, tack weld, or van stone connection.

• 3” through 5” Angle Rings are pressed formed 10 ga. gauge black iron.

• Available with or without holes.

• 6” through 60” Angle Rings are mild steel.

• Angle Rings are used for round duct connections, on duct collection and fume control.

• Industrial round duct end treatment and stiffeners (see SMACNA Industrial Duct Construction Standards).

• Most rings available for shipment (please consult factory).

• Other sizes and materials available (please consult factory).