The Circular Fire Damper is a safety-critical device designed to control the spread of fire, smoke, and toxic gases within ventilation and HVAC systems. Installed in circular ducts, it remains normally closed and activates automatically during a fire. Once triggered, the blades open or close depending on system signals and temperature, ensuring containment and protection. Manufactured with precision engineering and durable materials, this damper guarantees high performance under extreme conditions. Shandong Wanneng Group provides this solution to enhance fire safety across industrial, commercial, and residential projects.

Detailed Description

The Circular Fire Damper is an advanced fire protection solution engineered to safeguard buildings and occupants. It operates by responding to electrical fire signals or high-temperature sensors, ensuring automatic opening and closing of valve blades when critical conditions occur. When duct temperature reaches 280°C, the thermal sensor activates, closing the valve to block the spread of smoke and flames.

Built with a sturdy 2mm cold-rolled steel frame and galvanized corrugated blades, the damper offers excellent resistance to both high and low temperatures. It demonstrates stability across -40°C to +95°C, and special models withstand up to +300°C. Its corrosion-resistant design ensures long-lasting durability even in humid environments. With less than 2% air leakage, it surpasses industry standards in safety and efficiency.

Thanks to modular construction, installation is quick and straightforward, while easy maintenance reduces downtime. This makes the Circular Fire Damper a reliable, cost-effective choice for modern buildings requiring superior fire safety compliance.

Technical Specifications

Key Features & Benefits

The Circular Fire Damper delivers high-performance safety and durability with features that surpass industry standards:

• High-Temperature Resistance: Withstands up to 300°C in special models, ensuring stability during emergencies.

• Corrosion Protection: Galvanized blades resist rust and moisture, extending product life.

• Low Air Leakage: Precision sealing keeps leakage under 2%, improving building fire safety.

• Structural Strength: High-strength shafts and connecting rods provide long-term mechanical reliability.

• Easy Installation: Modular design simplifies setup and reduces labor costs.

With its strong build and proven fire protection performance, this damper enhances safety, reduces risks, and ensures long-lasting efficiency in any HVAC system.

Applications & Use Cases

The Circular Fire Damper is suitable for a wide range of environments where fire protection and air safety are essential:

• Commercial Buildings: Protects offices, shopping centers, and public facilities by stopping fire and smoke spread.

• Hospitals & Healthcare Facilities: Maintains safety in sensitive environments with controlled air systems.

• Industrial Plants: Ensures reliable fire containment in factories and production areas.

• Hotels & Hospitality: Enhances guest safety by integrating seamlessly with HVAC systems.

• Residential Complexes: Provides dependable fire safety for apartments and high-rise buildings.

By combining safety, durability, and ease of use, this fire damper is a critical component in modern fire protection strategies.

FAQs

Q1: What is a circular fire damper used for?

A circular fire damper is used in ventilation systems to block fire, smoke, and gases from spreading through ducts during emergencies.

Q2: How does a circular fire damper work in case of fire?

It opens or closes blades automatically when receiving an electrical signal or when the duct temperature reaches 280°C.

Q3: What makes this circular fire damper durable?

Its 2mm steel frame, galvanized blades, and corrosion-resistant design ensure long-term performance.

Q4: Does the circular fire damper require difficult installation?

No, it has a modular design that allows quick installation without complex tools or heavy maintenance.

Q5: How efficient is the circular fire damper against air leakage?

It features high-precision sealing with less than 2% leakage, exceeding standard industry requirements.