â… . Product Introduction
â…¡. Product Features
- Dual Protection: Flame Arrest + Heat Dissipation
The integrated stainless steel fire resistance layer effectively quenches flames by absorbing combustion heat, while the optimized flow channel design accelerates heat transfer to the external environment, preventing secondary ignition.
- Material Compatibility
Available in carbon steel and stainless steel body options, the device resists corrosion from cocoa processing byproducts and meets food-grade hygiene requirements when using stainless steel configurations.
- Flexible Flange Connection
Offers a flange connection mode with multiple pressure ratings (0.25-4.0MPa, 150-300LB) and sealing surface types (FF, AF, MFM), ensuring compatibility with various industrial pipeline standards.
- Wide Diameter Range
Supports nominal diameters from DN50 to DN250, accommodating both small-scale production lines and large-capacity storage systems.
- Low Maintenance Design
The modular structure allows easy removal and cleaning of the fire resistance layer, ensuring consistent performance even with prolonged exposure to cocoa dust accumulation.
â…¢. Technical Data
Heat Dissipation Vent Damper Options Table
| Parameter | Specification |
|---|---|
| Inside Nominal Diameter (DN) | 50-250 (detailed values in Parameter Table) |
| Body Material | Carbon steel, Stainless steel |
| Fire Resistance Layer Material | Stainless steel |
| Connection Mode | Flange |
| Flange Pressure Rating | 0.25-4.0MPa, 150-300LB |
| Flange Sealing Surface | FF (Flat Face), AF (Raised Face), MFM (Male-Female Metal) |
Ⅳ.The main shape and connection size

| DN | L | H |
| 50 | 250 | 274 |
| 80 | 295 | 310 |
| 100 | 338 | 330 |
| 150 | 420 | 368 |
| 200 | 495 | 455 |
| 250 | 500 | 465 |


















