Product Description

A ventilation tee is a fitting designed to create a branch from a main duct, allowing airflow to be divided or combined.

We offer two main types of tees:

• 90° Tee (T-piece): Used to create a perpendicular branch from the main run.
• 45° Tee (Y-piece): Used for a smoother diversion or merging of airflows, which reduces aerodynamic resistance in the system.

Key Features and Options

• Angles: We supply standard tees with 90° and 45° angles. Custom manufacturing of tees with any other angle (e.g., 30°) is available on request.
• Reducing Tees: Any of the three spigots on the tee can be manufactured with a different (smaller) diameter, functioning as a tee-reducer.
• Airtightness Options: The standard version is supplied with EPDM rubber gaskets on the spigots for Class "D" airtightness. A version without a gasket can be manufactured upon request (to reduce cost).
• Connection Types: The standard version is "male" ("-"), for insertion into ducts. "Female" ("+", for connecting to nipples) or mixed types can be manufactured on request.
• Special Configurations (Custom Order): We also produce crosses (X-pieces), tees with a rectangular spigot (for grille installation), and other custom configurations based on your drawings.

Available Types and Sizes

Below are the standard equal (with identical diameters) tees. All reducing sizes (e.g., 160/100, 250/160, etc.) are available on a custom-order basis.

90° Tee (T-piece)

45° Tee (Y-piece)

Material and Thickness (for all types):

• Material: Galvanized steel DX51+Z275. Stainless steel (AISI430, AISI304, AISI316), aluminum, and powder coating (according to RAL or RR catalogs) are available on request.
• Thickness: From 0.5 to 0.9 mm depending on the diameter.
• Certification: The products comply with CE, EN 1505:2000 and EN 1506:2007 standards.

Application and Installation Tips

• Installation: In the standard version, all three "male" spigots of the tee are inserted inside the ducts, ensuring an airtight connection.
• Fitting-to-fitting connection: To connect a tee spigot to another fitting (e.g., a bend), use a coupler (external connection).
• Sealing: When ordering the version without a gasket, the joints must be sealed with aluminum tape.

Availability and Ordering

• Availability: Standard equal tees (90° and 45°), shown in the tables, are kept in stock or delivered within short lead times.
• Custom Order: On request, it is possible to manufacture reducing tees (with different diameters), crosses (X-pieces), tees without a rubber gasket (to reduce cost), non-standard diameters (up to 1250 mm), and any other non-standard variations (including the materials specified in the characteristics).