BF-3248-2
System details
- Type
- Service Penetration
- Element
- Wall
- Substrate
- Double Layer
- Minimum Substrate Thickness
- 118 mm
- FRL / FRR
- -/60/60
- Trade
- Plumbing / Hydraulic / Active Fire
- Service
- Water Valves & Tap Sets
- Fire Rating
- 60
Fire-stopping products
Application dimensions
- Min Diameter
- 20 mm
- Max Diameter
- 20 mm
- Service Diameter Range
- 20 mm
- Aperture
- 45.3 mm
- Annular Gap
- 8.7 - 15.6 mm
- Sealant Depth
- 13 mm
Specimen size & details
1 - sided penetration. 20 mm x 1/2" External Wingback Elbow (Brass) penetrating the wall from either direction. Wingback fixed to a 300 mm wide x 200 mm high x 20 mm thick plywood backing. BOSS FireMastic-EMA™ sealant 13 mm deep in the annular gap finished flush.