FyreWrap Blanket (Fiberfrax Durablanket S) - Class A-30 Aluminium Bulkhead (Restricted)
FyreWrap Blanket (Fiberfrax Durablanket S) - Class A-30 Aluminium Bulkhead (Restricted) by Unifrax Ltd.. DNV TA certificate TAF00000G8.
Inspector Detail
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Common issues
- Mechanical compression or damage reducing insulation thickness below the approved value
- Water or oil saturation degrading the insulation's fire performance
- Corroded or missing pins/washers allowing the blanket to sag away from the aluminium substrate
- Gaps at panel joints or around penetrations not properly overlapped/sealed
- Torn facing/scrim allowing loose fibre shedding
- Unauthorised cutting or removal for access to services behind the boundary, not reinstated correctly
Inspection checklist
- Facing/scrim condition for tears or damage
- Pin and washer count/corrosion condition
- Blanket thickness/compression spot-checked against the as-installed value
- Joint overlaps and any taping intact
- Penetration seals (cables, pipes) intact and undamaged
- No oil, fuel, or grease contamination on the blanket
- No unauthorised cutting or panel removal
Service intervals
| Visual condition survey | at each periodic fire safety inspection, typically annually |
| Thickness/compression spot-check | at each intermediate or renewal class survey |
| Pin/washer retention check | annually, or after any hot work carried out nearby |
| Post-repair verification after any panel disturbance | before returning the boundary to service |
Typical wear limits
| Installed thickness vs approved thickness | should not be compressed below the thickness stated on the DNV type approval certificate for the A-30 rating - confirm against certificate TAF00000G8 |
| Pin spacing/retention | per the approved installation drawing, commonly in the order of every 300-400 mm for this class of application - confirm against the installation approval |
| Joint overlap width | typically a minimum overlap in the order of 50-100 mm between blanket sections is expected for this type of system - confirm against the approved installation method |
Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.
Critical spares
- Matching insulation blanket material of the same type-approved specification
- Stainless steel retaining pins and washers
- Facing tape/foil repair material
- Matching type-approved patch material for local repairs
- Mounting/fixing hardware (studs or weld pins) matching the approved installation method
Safety
- Respiratory and skin irritation from ceramic/mineral fibre during handling or cutting - use appropriate PPE
- Loss of "A" class fire subdivision integrity if the blanket is damaged, removed, or not correctly reinstated
- Hot work carried out nearby must not compress, scorch, or contaminate the blanket
- The aluminium substrate behind the blanket has a low melting point - the insulation is safety-critical, not decorative
Class survey
Note: this catalog entry is filed under 'Fire Hoses & Nozzles' but the product is a passive fire insulation blanket (A-30 rated) for aluminium bulkheads/decks, not a hose - the content above addresses the actual product. Class surveyors check this under structural fire protection (SOLAS II-2), verifying the installed material and thickness match the DNV type approval certificate TAF00000G8 and that the A-class boundary is not compromised by penetrations or damage.
Components & Design
Component data being added…
Technical Data
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Maritime Network →DNV type approval
Verified against the DNV Approval Finder — the certificate below is issued by DNV, not by us.
- Certificate
- TAF00000G8
- Approved as
- Class A Bulkhead · Fire Safety
- Certificate holder
- Unifrax Ltd. (United Kingdom of Great Britain and Northern Ireland)
- Valid until
- 2028-02-20