BF-3257-4
System details
- Type
- Service Penetration
- Element
- Wall
- Substrate
- Concrete
- Minimum Substrate Thickness
- 118 mm
- FRL / FRR
- -/30/30
- Trade
- Plumbing / Hydraulic / Active Fire
- Service
- PEX
Fire-stopping products
Application dimensions
- Min Diameter
- 25 mm
- Max Diameter
- 25 mm
- Service Diameter Range
- 25 mm
- Aperture
- 70.1 mm
- Annular Gap
- 7.5 - 11.6 mm
- Sealant Depth
- 13 mm
Specimen size & details
25 mm PEX pipe with 2.95 mm wall thickness, insulated with 13 mm thick nitrile insulation. BOSS FireMastic-HPE™ sealant 13 mm deep in annular gap finished flush both sides.