45° Spiral Duct Elbow with Rubber Gasket (Galvanized Steel)
45° spiral duct elbow with integrated rubber gasket is a high-airtightness HVAC duct bend for circular ventilation pipeline systems. Made of anti-corrosion galvanized steel with professional zinc-coated finish, this 45-degree duct fitting adopts streamlined curved design to lower airflow resistance and pressure drop for smoother air circulation. Featured with pre-mounted rubber sealing gasket, it ensures zero-leakage duct connection and simplifies installation procedures. Compatible with full-size standard spiral ducts and equipped with slip-fit quick connection structure, it is widely used in commercial buildings, industrial duct systems, air conditioning, fresh air and exhaust ventilation engineering.
Product Description
The 45° Spiral Duct Elbow is designed to provide a smooth directional change in round duct systems with reduced airflow resistance compared to sharper angles. Made from high-quality galvanized steel, it ensures durability, corrosion resistance, and long-term performance in HVAC applications.
This model features a factory-installed rubber gasket, enabling airtight connections without additional sealing materials, improving installation efficiency and system performance.
Available in multiple diameters and compatible with standard spiral duct systems, this elbow is ideal for precise airflow routing in both commercial and industrial environments.
Key Features
- Optimized 45° Angle Reduces turbulence and pressure loss compared to 90° elbows
- Integrated Rubber Gasket Ensures airtight sealing and minimizes leakage
- Durable Construction Made from galvanized steel for corrosion resistance
- Smooth Airflow Performance Curved design enhances system efficiency
- Standard Compatibility Fits standard spiral duct sizes
- Quick Installation Slip-fit connection saves installation time
Applications
- HVAC air distribution systems
- Commercial ventilation (offices, malls, hotels)
- Industrial ducting systems
- Air conditioning systems
- Fresh air and exhaust air systems
Technical Specifications
| Parameter | Value |
| Material | Galvanized Steel |
| Thickness | 0.5 mm |
| Angle | 45° |
| Connection Type | Slip Fit / Male End |
| Diameter Range | Ø80 – Ø315 mm |
| Gasket | Pre-installed Rubber Seal |
| Surface Treatment | Zinc Coated |
Size Range (Example)
| Size (mm) | Inner Diameter ØD (mm) | Radius R (mm) | Height H (mm) |
| 80 | 78.8 | 80 | 40 |
| 100 | 98.8 | 100 | 40 |
| 125 | 123.8 | 125 | 40 |
| 150 | 148.7 | 150 | 40 |
| 160 | 158.7 | 160 | 40 |
| 180 | 178.6 | 180 | 40 |
| 200 | 198.6 | 200 | 40 |
| 250 | 248.5 | 250 | 40 |
| 315 | 315 | 315 | 60 |
