Rectangular air collector box

Description

1. Uses

• Collect or distribute air from fans, AHUs, FCUs or central air conditioning units.
• Air is led through air vents, flexible air ducts or round air ducts to air supply locations in the room.
• Help Evenly distributed air flow and reduce noise before the air exits the vent.

2. Structure

• Box body: rectangular or square, combination round neck (collar) for connecting round ducts or flexible pipes.
• Round neck: rounded edges or fitted with airtight gaskets, secured with rivets or spot welding.
• Input/Output: can be square flange (TDC/TDF) or open face for direct connection to fan/air vent.

3. Material

• Galvanized steel Z080 (Hoa Sen / Hoa Phat) standard, thickness 0.58 - 1.15 mm depending on size.
• Options: Stainless steel 304/201 or powder coated steel if high aesthetic requirements or corrosive environment.
• Surface can be insulation with glass wool or vulcanized rubber to reduce heat loss and noise.

4. Specifications – Dimensions

• Box size (W × H × L) according to design drawing or actual requirement.
• Number of round necks: 1–6 necks depending on needs.
• Round neck diameter (Ø): 100 – 500 mm.
• Neck length: 50 – 100 mm, with tube holder.

5. Processing

• The box body is Pittsburgh seamed or spot welded, ensuring high air tightness.
• Round neck is stamped and edged by specialized machine, ensuring even roundness and tight fit to the flexible air duct.
• All joints are treated with sealant to prevent air leakage.

6. Application

• HVAC System: cold air supply from central air conditioning.
• Ventilation system: distribute fresh air into rooms.
• Fire smoke extraction system: collects smoke from many flexible pipe branches into the main pipe.

7. Advantage

• Even air distribution and sudden pressure drop.
• High airtightness → reduce energy loss.
• Flexible: easy to install in many different duct systems.
• Custom processing: size, neck quantity, neck position and custom material.