90 degree round elbow

Description

1. Uses

• Change the direction of the circular duct 90° in ventilation, air conditioning, fire protection smoke extraction systems.
• Helps to arrange the system flexibly, suitable for the construction space while still ensuring air flow.
• Minimizes pressure loss when changing direction thanks to rounded design, which can be supplemented turning vanes inside.

2. Material

• Galvanized steel Z080 (Hoa Sen / Hoa Phat) standard, anti-corrosion.
• Material thickness: 0.48mm – 1.0mm depending on diameter and wind pressure.
• Options: Stainless steel 304/201 or powder coated steel for special environments (humid, highly corrosive).

3. Specifications – Dimensions

• Diameter (Ø): 100 – 1250 mm.
• Elbow angle: 90° (can be machined 45°, 60° upon request).
• Radius of bend (R): R = 1.0D to 1.5D for optimal flow.
• Connector: female end or male end, with stiffener.

4. Processing method

• Processed by bending machine and round seam welding, ensuring airtightness.
• Curved sections are assembled from multiple pipe segments to achieve high accuracy and roundness.
• Joints treated with airtight glue or leak-proof tape.

5. Application

• System HVAC: cold air supply, fresh air, return air.
• System smoke extraction – fire protection in factories, high-rise buildings.
• Ventilation systems for basements, garages, industrial zones.

6. Advantage

• Tight, secure, anti-leakage.
• Optimize air flow With reasonable bend radius, reduce pressure loss.
• Easy to install with flexible connector types.
• Custom processing size, elbow angle, bend radius.