Category

Spiral Duct T Branch with Rubber Gasket

Galvanized spiral duct T branch with rubber gasket is a universal HVAC T tee fitting for circular spiral duct branching connections. Built with anti-corrosion zinc-coated galvanized steel, this round duct T piece features solid structural stability for long-term ventilation operation. Equipped with pre-installed rubber gaskets, it ensures tight airtight connection, minimizes system air loss and simplifies on-site assembly procedures. Available in comprehensive size combinations to fit standard spiral duct specifications, it serves as an essential ventilation accessory for air distribution and branch conversion in commercial buildings, industrial ventilation and residential HVAC duct systems.

Product Description

The Spiral Duct T Branch with Rubber Gasket is designed for branch connection in round HVAC duct systems. Its T-shaped structure allows air distribution or extraction from the main duct line, making it a commonly used fitting in spiral duct installations.

Manufactured from galvanized steel, this fitting offers good structural strength, corrosion resistance, and long service life. The pre-installed rubber gaskets ensure improved airtightness, reduce air leakage, and simplify installation without extra sealing work on site.

Available in a wide range of size combinations, the T branch is suitable for commercial, industrial, and residential ventilation systems where reliable duct branching is required.

Key Features

  • T-Type Branch Design   Ideal for 90° branch connections in round duct systems
  • Integrated Rubber Gasket  Provides better sealing performance and faster installation
  • Galvanized Steel Construction   Durable and corrosion-resistant for long-term HVAC use
  • Wide Size Range   Multiple diameter combinations available
  • Standard Spiral Duct Compatibility  Easy to connect with round ventilation ducts
  • Low Leakage Connection  Helps improve overall system airtightness

Applications

  • HVAC ventilation systems
  • Spiral round duct branch connections
  • Commercial building air distribution
  • Industrial exhaust and fresh air systems
  • Residential ventilation networks
  • Air conditioning duct installations

Technical Specifications

Parameter Value
Product Name Spiral Duct T Branch with Rubber Gasket
Material Galvanized Steel
Thickness 0.5 mm
Type T Branch / T Tee
Diameter Range 15 – 315 mm
Connection Type Slip Fit / Rubber Gasket Connection
Surface Treatment Zinc Coated
Feature Airtight Connection

Size Range (Example)

Size D (mm) d (mm) L (mm) H (mm)
100-80 98.8 78.8 140 45
100-100 98.8 98.8 160 45
125-80 123.8 78.8 140 45
125-100 123.8 98.8 160 45
125-125 123.8 123.8 200 45
150-80 148.7 78.8 140 45
150-100 148.7 98.8 160 45
150-125 148.7 123.8 200 45
150-150 148.7 148.7 245 45
160-100 158.7 98.8 160 45
200-160 198.6 158.7 245 45
250-200 248.5 198.6 330 45
315-250 313.4 248.5 380 45
315-315 313.4 313.4 450 45

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