This circular fire smoke exhaust damper is an essential component for building ventilation and fire smoke control systems. It is mainly manufactured from high-quality galvanized steel plate, and corrosion-resistant stainless steel customization is available. We supply both circular and rectangular types. The valve body is integrally stamped from thickened steel plates for solid structural strength, equipped with professional fire-rated thermal actuators that realize automatic shut-off at 280℃ as well as manual opening, closing and reset functions.

The damper stays open for regular ventilation under normal working conditions. In case of fire, it opens automatically upon fire linkage signals to exhaust indoor smoke. Once the flue gas temperature reaches 280℃, the thermal fuse melts by heat and the damper closes instantly to block the duct, preventing flames and high-temperature smoke from spreading through ventilation pipelines and stopping fire cross-regional spread effectively. It features outstanding sealing performance with smooth jamming-free blade operation, excellent pressure resistance, easy flange connection installation, good rust resistance and long service life.

Core Advantages

1. Thickened Durable Material Integrally formed thick galvanized steel resists deformation under impact and extrusion. Anti-rust surface treatment ensures reliable anti-corrosion performance for long-term stable operation.
2. Sensitive & Quick Response Certified fire actuators deliver accurate temperature detection and rapid action. The damper locks timely under high temperature to guarantee stable fire protection.
3. Excellent Sealing Performance Tight fit when blades are closed brings superior air tightness without air or smoke leakage, achieving reliable fire and smoke isolation.
4. Strong Pressure Resistance Robust structure withstands strong wind pressure inside ducts. Standard flange connection enables easy and efficient on-site installation.

Basic Specifications

• Product Name: Fire Smoke Exhaust Damper (Circular / Rectangular Optional)
• Material: Hot-dip galvanized steel plate; stainless steel for customized orders
• Size: Customizable non-standard sizes of all specifications
• Control Mode: Automatic thermal shutoff at 280℃, manual reset, electric remote control
• Application: High-rise buildings, commercial complexes, office buildings, workshops, underground parking lots and other buildings for ventilation, smoke exhaust and fire protection systems

Factory Service

We are a direct manufacturer with abundant experience in ventilation & fire protection equipment manufacturing. Factory direct sales cut extra costs from middlemen. Every product undergoes strict full-process quality inspection before delivery. Customization based on your drawings and samples is supported. We provide one-stop procurement of ventilation equipment, official invoices and exclusive one-on-one after-sales service together with professional installation technical guidance.

Actual Product Shots

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Rich Industry Experience & Trustworthy Quality

Three Core Advantages

1. High Cost Performance | Authentic Manufacturer Supplied directly by the factory with competitive prices without middlemen.
2. High-Grade Raw Materials | Strict Quality Inspection Made of premium selected raw materials, the finished products own stable structure and long service life.
3. Diversified Customization | Customizable Service We can customize products based on your pictures, samples and personalized requirements.

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About Price

Our products are customized processed goods. Please contact our customer service to confirm specific parameters before placing orders. The final price shall follow the quotation offered by customer service.

Customization Process

1. Contact Customer Service: Inquire about relevant product information.
2. Customer Confirmation: Confirm product dimensions with customer service.
3. Confirm Customization Plan: Display the product rendering effect for you quickly.
4. Pay the Balance Payment: We will launch mass production and finish within the agreed time.
5. Confirm Receipt of Goods: Goods are delivered by logistics and confirmed by the buyer.
6. After-sales Service: Professional one-on-one after-sales support is available.

Purchase Instructions

1. Quality

All products will go through strict quality inspection before delivery and are produced in line with your required quality standards. Please check the product details thoroughly before ordering to avoid unnecessary disputes.

2. Order Placement

Please confirm stock availability, delivery address and delivery arrangements with customer service in advance. Kindly fill in complete and accurate shipping information after order submission to avoid subsequent modifications.

3. Color Difference

All product pictures are real shooting. Slight color deviation may occur due to camera models, ambient light and different display screens, we appreciate your understanding.

4. Goods Receipt

All items are strictly inspected before shipment to guarantee quality. Please carefully inspect the goods before signing for acceptance. Reach out to us immediately if any defects are found.