Class B-15 Wall Inspection Hatch

Class B-15 Wall Inspection Hatch

Product Introduction:

Our Class B-15 Wall Inspection Hatch is a fire-rated access panel specifically designed for installation in B-class divisions – bulkheads and decks that require certified fire resistance in marine and offshore environments. This inspection hatch provides safe, compliant access to concealed spaces while maintaining the fire integrity of the surrounding structure.

Product Parameters:

Key Features：

1.B-15 Fire Rating – Certified to prevent flame passage and limit temperature rise for 15 minutes, meeting IMO SOLAS requirements for B-class divisions .

2.Approved Non-Combustible Construction – Manufactured from steel sheets with sandwich insulation; all materials entering into construction are non-combustible, with only minor combustible veneers permitted under strict conditions .

3.Insulated Door Leaf – 37mm thick door leaf with special overlap solution and Z-type installation frame (45-50mm depth) for optimal thermal performance .

4.Temperature Rise Compliance – Meets FTP Code requirements: unexposed side average temperature rise ≤140°C, with no single point exceeding 225°C above original temperature for 15 minutes .

5.IMO & SOLAS Certified – Complies with European MED Directive 2014/90/EU and USCG regulations, suitable for international voyages .

6.Secure Closure System – Available with mechanical lock systems, quarter-turn locks with recessed handles, and single or double locking points .

Typical Applications:

*Passenger and cargo ships – B-class bulkhead inspection access.

*Offshore platforms – concealed space access in fire-rated divisions.

*Marine accommodation areas – behind-wall service access.

*Commercial vessels – compliance with SOLAS fire safety requirements.

Why Choose Our B-15 Inspection Hatch?

Marine inspection hatches in B-class divisions must be tested and certified to the same stringent standards as B-class doors . Unlike standard access panels, our B-15 hatches undergo rigorous fire testing to ensure:

*Flame passage prevention – 15 minutes of fire containment.

*Temperature rise limits – Protecting adjacent spaces from heat transfer.

*Structural integrity – Non-combustible materials throughout.

Deyuan Marine is dedicated to providing personalized guidance and support, empowering you to make informed decisions that are perfectly aligned with your unique needs.