Constant Air Volume Damper (CAV)

Constant Air Volume Damper (CAV), referred to as CAV damper, is a mechanical self-operated air volume adjustment device. It can automatically adjust the valve opening through internal spring and balance mechanisms within a certain range of pipeline pressure fluctuations, so that the air volume passing through the damper is always maintained at the preset value without external power or manual intervention. It is the core product to solve air volume imbalance and avoid "air robbing" phenomenon in ventilation systems. After installation, Constant Air Volume Damper (CAV) sets the air volume once, and can automatically maintain stable air volume for a long time, greatly reducing system commissioning workload and improving the stability and operating efficiency of ventilation systems.

Our Constant Air Volume Damper (CAV) adopts a precise mechanical balance structure. The valve body is made of high-quality galvanized steel sheet, and the internal spring components are precisely calibrated, which can stably maintain the air volume deviation within ±10% within the specified pressure difference range. The product does not require external power supply and operates completely driven by pipeline air pressure, which is safe and reliable with extremely low maintenance cost. With 23 years of R&D experience in ventilation control equipment, our CAV damper has accurate air volume calibration and stable and reliable operation. It can effectively simplify the commissioning process of ventilation systems and reduce later operation and maintenance costs. It is widely applicable to various ventilation and air conditioning systems with high requirements for air volume stability.

• Medical places: Places with stable air volume requirements such as hospital operating rooms, ICUs, and negative pressure wards
• Laboratories: Constant air volume control of ventilation systems in chemical laboratories, biological laboratories, and clean rooms
• Public buildings: Air volume balance of ventilation branch pipes in office buildings, hotels, and shopping malls to avoid air robbing phenomenon

We have a 13,000-square-meter self-built production base, equipped with professional air volume calibration equipment and automated production equipment. We have an R&D and production team with 23 years of deep engagement in the field of ventilation control, and have R&D, calibration and mass production capabilities for precision air volume adjustment products. As one of our core technical products, each Constant Air Volume Damper (CAV) is calibrated one by one with professional equipment to ensure air volume accuracy meets standards. The factory has sufficient monthly production capacity, can undertake bulk orders for various projects, and can also customize products with special air volume specifications according to customer needs.

We have established a strict special quality inspection process for Constant Air Volume Damper (CAV). Raw materials are inspected for material and thickness upon entering the factory. During production, spring component accuracy and balance mechanism assembly quality are sampled and inspected. At the finished product stage, each product undergoes full performance testing with professional air volume calibration equipment to ensure air volume accuracy and applicable pressure difference range meet design requirements. 100% full inspection is implemented before packaging, and each product comes with a calibration report with traceable quality. We support on-site testing by third-party institutions. The products come with a one-year warranty upon delivery to ensure stable and reliable performance.

We are a national high-tech enterprise. Constant air volume damper products have passed national ventilation equipment quality testing, with complete test reports, technical patents and qualification documents. The factory production process strictly abides by national environmental and safety production regulations, and product performance complies with relevant domestic and international industry standards. It has been widely used in many hospital, laboratory and clean workshop projects in China, and has been widely recognized in the industry. We can provide various technical support and qualification documents to meet project requirements.

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