Inspection hatches for installation in F90 (EI 90) fire protection walls. For paneling thickness 25 mm, consisting of an anodized aluminum frame with a swing-out and completely removable inner cover, screwed Knauf Diamant panels, a seal and a self-activating safety catch. Additional equipment/special designs: intermediate dimensions, air/dust tightness (class 3, DIN EN 1026 + 12207, suction and pressure), square locking, round cylinder lock, lock prepared for profile cylinder, prepared for on-site tiling. Installation advantages: - stable frame for easy assembly - quick and easy to install - cover can be completely removed for filling and coating work - with screw protective caps for injury-free installation - can be retrofitted User advantages: - flush, inconspicuous even in grazing light - narrow gap, visually appealing - stable and high-quality design for long-term functionality even when opened frequently - removable cover for convenient access to installations - protective caps on screws for injury-free access to the wall cavity - spare parts available for a very long time - uncomplicated coating with paint, wallpaper or tiles Planner advantages: - Safety: tested and approved system components - simple documentation: evidence via Knauf Direkt is always up to date and available - small opening path and low installation depth in the cavity, ideal when space is limited - high-quality rubber lip seal, tested airtight and dust-tight - support from Knauf at any time for technical questions

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