Round duct system

Ventilation T-pieces and X-pieces

manufacturer: Akvilon | Kods: VASY

Ventilation Y-Tees (Pants) and X-Tees (Crosses)

Product Description

Ventilation tees of this type are used for complex or smooth connections in a system. Unlike standard T-shaped tees, they have a more complex geometry for specific tasks.

  • Y-Tee ("Pants"): Has three spigots. Used for the smooth division of one airflow into two (or merging two into one) at a 45° angle.
  • X-Tee (Cross): Has four spigots and is used to connect four ducts at a single point (typically at a 90° angle).

Key Features and Options

  • Types: We supply standard Y-Tees (45°) and X-Tees (Crosses, 90°).
  • Reducing Tees: Any of the tee's spigots 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.
  • Custom Configurations: Manufacturing of tees at any non-standard angle (e.g., 30°), with non-standard spigot lengths, or based on your drawings is available.

Available Types and Sizes

45° Y-Tee (Pants)

Available 45° Y-Tees (VASY)
Diameter (D1/D2/D3) mm Article
100/100/100 VASY1010
125/100/100 VASY1210
125/125/125 VASY1212
160/100/100 VASY1610
160/125/125 VASY1612
160/160/160 VASY1616
200/160/160 VASY2016
200/200/200 VASY2020
250/160/160 VASY2516
250/200/200 VASY2520
250/250/250 VASY2525
315/200/200 VASY3120
315/250/250 VASY3125
315/315/315 VASY3131
355/250/250 VASY3525
400/315/315 VASY4031
450/315/315 VASY4531
500/355/355 VASY5035
560/400/400 VASY5640
630/450/450 VASY6345
630/500/500 VASY63500
800/630/630 VASY8063
800/800/800 VASY8080

90° X-Tee (Cross)

Available X-Tees (VASX)
Diameter (Main/Branch) mm Article
100/100 VASX1010
125/100 VASX1210
125/125 VASX1212
160/100 VASX1610
160/125 VASX1612
160/160 VASX1616
200/100 VASX2010
200/125 VASX2012
200/160 VASX2016
200/200 VASX2020
250/100 VASX2510
250/125 VASX2512
250/160 VASX2516
250/200 VASX2520
250/250 VASX2525
315/100 VASX3110
315/125 VASX3112
315/160 VASX3116
315/200 VASX3120
315/250 VASX3125
315/315 VASX3131
400/160 VASX4016
400/200 VASX4020
400/250 VASX4025
400/315 VASX4031
400/400 VASX4040
500/160 VASX5015
500/200 VASX5020
500/250 VASX5025
500/315 VASX5031
500/400 VASX5040
500/500 VASX5050
630/160 VASX6316
630/200 VASX6320
630/250 VASX6325
630/315 VASX6331
630/400 VASX6340
630/500 VASX6350

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 "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 Y-tees (up to D-250), shown in the table, are kept in stock or delivered within short lead times.
  • Standard Order: X-Tees (Crosses) and large-diameter Y-Tees (D-315 and up) are standard items supplied on a custom-order basis.
  • Non-Standard Order: On request, it is possible to manufacture reducing tees (with different diameters), 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).

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