The Quelfire QWX Large Diameter Fire Collar is designed to maintain the fire integrity of compartment walls and floors where large diameter plastic pipes (200–400mm) penetrate. The collar expands under heat to form a carbonaceous char that seals the opening, preventing the spread of fire, smoke, and gases.
Key Features & Benefits
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Up to 4 hours fire resistance in walls; up to 3 hours in floors
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Suitable for concrete floors and blockwork walls
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Tested to BS EN 1366-3: 2009
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Can be retrofitted – suitable for new or existing installations
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Wrap-around design avoids disruption to services
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Integral fixing lugs for secure mounting
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Non-toxic and environmentally safe in solid state
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Designed to last the lifetime of the service installation
Applications
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Firestopping of large diameter plastic pipes through fire-rated walls or floors
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Vertical penetrations: install one collar below the floor (two for 350mm and 400mm)
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Horizontal penetrations: install collars on both sides of the wall
Technical Specifications
| Product Code | Pipe Ø (mm) | Hole Ø (mm) | Collar Length (mm) | Fire Rating (Wall) | Fire Rating (Floor) |
|---|---|---|---|---|---|
| QWX200 | 200 | 202 | 190 | 4 hours | 3 hours |
| QWX225 | 225 | 227 | 190 | 4 hours | 3 hours |
| QWX250 | 250 | 252 | 190 | 4 hours | 3 hours |
| QWX315 | 315 | 317 | 190 | 3 hours | 2 hours |
| QWX350* | 350 | 352 | 190 | 2 hours | 3 hours* |
| QWX400* | 400 | 402 | 190 | 2 hours | 3 hours* |
*Note: QWX350 and QWX400 require installation on both sides of the floor for full fire rating.