Inspection hatch for installation in Promat plasterboard ceilings. It consists of two frames made of aluminum angle bar: external (frame) and internal, which constitute the structural frame of the damper leaf. The damper has an intumescent fire seal about 1 mm thick, which is glued to the leaf along the entire perimeter of the damper. Single-leaf Promat inspection hatches are used in solid ceilings (reinforced concrete or prefabricated) and suspended ceilings with a fire resistance class not lower than the fire resistance of the inspection hatches. They allow you to carry out the necessary inspections, inspection and maintenance of the system in installations mounted above the fireproof ceiling.

Features

• the dampers are delivered ready for installation
• hand-made
• the use of boards with increased fire resistance Nida Ogień + allows for high parameters in the field of fire protection
• inspection flap frames made of high-quality aluminum ensure high durability and rigidity of the damper structure
• the unique design of the inspection hatches guarantees fire resistance against the action of fire from both sides, i.e. from the outside and inside
• use of Promatect-XS fire protective boards
• National technical assessment ITB-KOT-2019/1075
• National Certificate of Constancy of Performance No. AC158-UWB-W1704
• National Declaration of Performance KDWU-44
• storage in dry places

Construction

• damper filling: two Nida Ogień + plasterboards, 2 x 15 mm thick
• door frame cladding on the facing side: Nida Ogień + boards 2 x 15 mm thick
• inner side of the frame: a rim made of Promatect-XS boards, 2 x 15 mm thick (support for securing the flap from the inside - the lid)
• wreath protection: Nida Ogień + boards 2 x 12.5 mm thick connected with steel staples
• ring circumference on the inside: glued fire seal about 1 mm thick
• additional protection of all mechanical elements in the flaps (hinges, latches, sash): two-part cover (lid) made of Nida Ogień + plates 2 x 12.5 mm thick
• protection against falling out of the flap: steel cable attached to the frame
• additional equipment: the possibility of installing a round cylinder lock in the system of one or more keys

Note: The overall dimensions of the inspection hatches are 185 mm larger than those given.