Metal hermetically sealed protective doors for shelters BIG 1500*2180

The BIG 1500×2180 airtight protective metal door is a modern engineering solution for civil defense facilities, developed by Parytet-K.

The structure is designed for use in shelters, bunkers, storage facilities, and as an emergency exit for technical rooms, ensuring reliable protection of people against blast waves and fire. The door withstands a blast wave load of 1 kgf/cm², with a calculated shock wave load of 100 kPa.

The total leaf thickness is 71 mm, and the protective layer is filled with fire-resistant material. Tight sealing is ensured by four mechanical levers that press the door against the frame and expand the rubber gasket. Additionally, a thermal sealing strip is applied around the perimeter, which expands and seals the door in the event of a fire.

The door is reversible and can be installed as left- or right-handed. The clear opening size is 1288 mm × 1968 mm, and the overall block dimensions are 1500×2180 mm. It is a reliable solution for civil defense facilities where airtightness, strength, and enhanced safety are required.