Circular Fire Damper
Fire-rated circular duct damper
Circular Fire Damper
Fire-rated circular duct damper
| Airflow | N/A |
|---|---|
| Pressure Range | 70 C or 280 C closure |
| Motor Power | Passive |
| Material | Galvanized Steel |
| Certifications | CCC;ISO9001 |
โ Direct Manufacturer
โ 30+ Years Experience
โ 50+ Countries Served
โ Full Customization
Product Overview
Circular fire damper for round ductwork systems. Spring-loaded closure mechanism activated by fusible link at 70 C or 280 C. Suitable for spiral and round duct installations.
Key Features
- Round duct compatible
- Spring-loaded closure
- 70 C/280 C fusible link
- Low leakage rate
Procurement & Commercial Terms
| Minimum Order Quantity | 1 unit (made to order) |
|---|---|
| Production Lead Time | 15โ30 working days after deposit confirmation |
| Delivery Terms | FOB Qingdao / EXW Dezhou, China |
| Payment Terms | T/T 30% deposit, 70% before shipment; L/C at sight accepted |
| Warranty | 18 months from shipment |
| OEM / ODM | Available โ custom airflow, pressure, material & voltage |
| Certifications | CCC, ISO9001 |
Why specify Keruite: With an airflow range of N/A and pressure up to 70 C or 280 C closure, the Circular Fire Damper is engineered for demanding Round ductwork duties and built from Galvanized Steel for long service life. As a direct manufacturer since 1995 with an 80,000 mยฒ production base and equipment exported to 50+ countries, we supply the Circular Fire Damper with full performance test reports, general arrangement drawings, and factory-audit support. Request a quotation →
Key Features
- Round duct
- Spring closure
- Fusible link
- Low leakage
Applications
- Round ductwork
- Fire barriers
- Commercial HVAC
- Industrial ventilation
Industry Applications
This product is engineered for the following industry environments. Explore our dedicated solutions pages for more details:
Compliance & Certifications
โ
CCC
China Compulsory Cert.
โ
CE
EU Conformity Mark
โ
ISO 9001
Quality Management
โ
ATEX
Explosion-Proof (Ex d)
Note: Specific certifications available depend on product type and market. For ATEX/Ex d applications, please specify gas group, temperature class, and zone classification in your inquiry. Full type test certificates and Declarations of Conformity are included with every Ex-rated unit.
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Performance Curve
Representative performance curves at different speeds. Contact us for detailed performance data specific to your required model and operating conditions.
Dimensions & Installation
Schematic dimension diagram. Exact dimensions vary by model number. Request the technical datasheet for precise specifications.
Frequently Asked Questions
What is the airflow range of the Circular Fire Damper?
The Circular Fire Damper delivers an airflow range of N/A. Contact us with your specific requirements for precise model selection.
What motor power options are available?
Motor power ranges from Passive. We offer standard IE2/IE3 efficiency motors and can customize voltage and frequency for your region (380V/50Hz, 460V/60Hz, etc.).
What materials are available for construction?
Standard construction materials include: Galvanized Steel. Custom materials such as SS316L, FRP, or special coatings are available upon request for corrosive or high-temperature environments.
Do you provide customization for specific applications?
Yes. As a direct manufacturer with 30+ years of experience, Keruite offers full customization including airflow, pressure, material, voltage, motor brand, and special features (explosion-proof, high-temperature, corrosion-resistant). Send us your specifications via the inquiry form.
What certifications does this product have?
This product holds the following certifications: CCC;ISO9001. Full certification documents are available upon request.
What is the typical lead time for production?
Standard models typically have a 15-25 day production lead time. Custom or made-to-order units may require 30-45 days depending on specifications and quantity. Contact us for an accurate delivery estimate based on your order.
Selection Guide
Follow these steps to select the right Circular Fire Damper model for your application.
1
Determine Required Airflow
Calculate the total airflow needed for your space. The Circular Fire Damper covers N/A. Consider room volume, air changes per hour (ACH), and ventilation standards (ASHRAE 62.1, EN 16798-1).
2
Calculate System Pressure
Account for duct resistance, filters, dampers, and fittings. The Circular Fire Damper handles pressure up to 70 C or 280 C closure. Add 10-15% safety margin to your calculated total static pressure.
3
Select Motor Power
Available motor power: Passive. Choose IE3 high-efficiency motors for continuous operation. Ensure your power supply matches the rated voltage and frequency.
4
Choose Material & Coating
Standard: Galvanized Steel. For corrosive environments, upgrade to SS316L or FRP. For high-temperature applications (>150ยฐC), request heat-resistant coating and Class H motor insulation.
5
Confirm Installation & Control
Verify mounting orientation, inlet/outlet dimensions, and control requirements (VFD, two-speed, or on/off). Download the installation manual or contact our engineering team for assistance.
7
Request a Quotation
Submit your specifications via the inquiry form. Include airflow, pressure, voltage, application, and quantity. Our engineers will review and provide a detailed quotation within 24 hours.
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