Gear Type Herringbone Damper with Gear Drive Synchronization and Opposed Blade Design for HVAC Air Volume Control

Product Introduction

The Gear Type Herringbone Damper is an air volume regulating device specifically designed for HVAC systems, installed at the rear of air grilles or diffusers for precise airflow control. Featuring gear-driven synchronous operation with multiple blades opening and closing simultaneously, it ensures uniform airflow velocity and constant flow rate through the damper. Widely used in office buildings, shopping malls, hotels, hospitals, and other commercial spaces.

Applicable Locations

The Gear Type Herringbone Damper is widely used in commercial building HVAC air volume control applications. Typical applications include:

Product Advantages

1. Gear Drive Synchronization – Precise Regulation

Features gear-mesh transmission — blade-end gears interlock for synchronous rotation. The drive gear enables coordinated blade opening/closing with higher precision than traditional linkage designs, delivering clear adjustment feedback and reliable airflow control.

2. Opposed Blade Design – Uniform Airflow

Multiple blades open and close simultaneously, ensuring uniform velocity and constant flow through the damper. Rotating the adjuster synchronizes blade angles while maintaining position across the full regulation range.

3. Aluminum Construction – Durable and Reliable

Manufactured from high-strength aluminum alloy profiles with sealed aluminum plates installed in slots. Aluminum offers corrosion resistance, light weight, and high strength — ensuring smooth operation without jamming or deformation over long-term use.

4. Constant Airflow – Compatible with Various Terminals

The damper delivers uniform velocity and constant flow, adaptable to different grilles and diffusers — meeting diverse air volume regulation requirements across HVAC terminal applications.

5. Customizable Sizes

Custom production available with tailored frames and seals to fit specific grille dimensions. Multi-blade configurations meet various specification requirements, compatible with square/rectangular duct systems.

Technical Specifications

Installation & Maintenance Instructions

Selection Recommendations