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Stainless Steel Fire Damper Technical Specifications

August 18, 2025
Latest company news about Stainless Steel Fire Damper Technical Specifications

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Functional Definition‌
Stainless steel fire dampers are critical safety devices in building ventilation and fire protection systems. Constructed from 304/316 stainless steel, they automatically isolate ductwork upon temperature activation to prevent fire spread.

‌I. Core Features‌

  1. ‌Fire Protection Mechanism‌

    • ‌Temperature Response‌:
      • Activation at 70°C (Fire Dampers) or 280°C (Smoke Exhaust Dampers)
      • Dual-trigger system: Gravity spring + shape-memory alloy thermal sensor
    • ‌Sealing Performance‌:
      • Dual-layer silicone gaskets (Leakage rate ≤0.67m³/(m²·h) @ 1000Pa differential pressure)
      • Fire resistance rating ≥1.0 hour (GB15930-2007 Standard)

  2. ‌Structural Design

Component Technical Specifications
‌Valve Body‌ 304 SS integral stamping, 720h salt spray tested
‌Drive System‌ Gear linkage mechanism, 40% faster closure
‌Controller‌ DC24V electrical signal interface with fire control panel

‌II. Installation & Maintenance Protocols‌

  • ‌Installation Requirements‌:
    • Vertically mounted at duct penetrations (tilt angle ≤15°)
    • ≥200mm clearance on actuator side for maintenance
  • ‌Maintenance Schedule‌:

1. Quarterly: Inspect gasket compression ratio (Standard ≥30%)

2. Annually: Replace thermal sensor lubricant (High-temp silicone grease)

3. Operational Test: ≥5 manual resets during commissioning

‌III. Application Scenarios

Scenario Type Technical Requirements
‌Industrial Ventilation‌ Chemical/O&G pipelines (316 SS mandatory)
‌Building Smoke Control‌ Firewall penetrations (GB51251 fire test compliant)
‌Special Environments‌ Basements/kitchens (corrosion-resistant priority)

Note‌: Smoke exhaust dampers require additional GB/T17428 cyclic wind tunnel insulation testing.

 Selected models support remote electric reset (Control voltage DC24V±10%).

‌Key Advantages‌

  1. ‌Material Properties‌: 304/316 SS resists chloride corrosion (C1 environment rated)
  2. ‌Smart Control‌: Real-time damper status feedback to fire control room
  3. ‌Lifecycle‌: ≥15-year service life (with proper maintenance)

  4. This translation:

    • Uses ASHRAE/NFPA-standard terminology (e.g., "fire damper", "differential pressure")
    • Maintains original technical parameters and units
    • Follows ISO documentation conventions for tables and lists
    • Includes China-specific standards (GB) for international project compliance
    • Suitable for technical submissions, OEM manuals, and global tenders.