Beteccad Back Draft Damper

The Beteccad Back Draft Damper is engineered to maintain positive pressure within HVAC ductwork by automatically closing against backflow. Constructed with a robust roll-formed galvanized steel channel frame (0.9 mm / 20 gauge) and lightweight aluminum blades, it ensures durability while minimizing weight and drag. The unit features a 1.5 mm foam gasket for a tight seal, preventing air leakage and maintaining system efficiency.

Key Features & Specifications

• Frame: 0.9 mm (20 gauge) roll-formed galvanized steel channel.
• Blades: 0.9 mm (20 gauge) roll-formed aluminum for smooth operation.
• Shaft & Bushes: 12 mm Ø galvanized steel shaft with 12 mm Ø nylon bushes for low-friction rotation.
• Sealing: 1.5 mm thick, 7 mm wide foam gasket for effective airtightness.
• Linkage: Common galvanized steel linkage for reliable blade synchronization.
• Mounting: Designed for vertical installation; available in Wall (A), Duct (B), or Flush (C) mounted configurations.

Optional Upgrades & Applications

For demanding environments or specific installation needs, this damper offers several customization options. Heavy-duty applications can utilize 12 mm Ø brass bushes to withstand higher mechanical stress. Round duct connections can be facilitated with neck adaptor transitions. Additionally, the unit is available in stainless steel (304/316L) construction with frame thicknesses up to 3 mm and blade thicknesses up to 1.5 mm for corrosion resistance in harsh or industrial settings. Remote monitoring is possible via optional limit switches, and aesthetic integration can be achieved with powder coating in specified colors.