SU-III INW - Blast & gastight hatch (inward opening)
SU-III-INW shelter hatches are designed for >440 (4.4 bar) blast pressure with inward opening (with the direction of the blast) according to existing technical norms for civil defence shelters. The hatch leaf is made from reinforced beams with cover plates. The doors can be upgraded with armor plates for splinter / ballistic protection and special materials for fire resistance.
SU-III-INW hatches have a multipoint locking system with locking bolts, providing improved protection against blast wave pressure and equipped with rubber seal for gas tightness.
Main Specifications:
Blast raring: 4.4 bar (440 kPa)
Sizes: 800x800 mm and 900x900 mm
Opening direction: Inwards
Splinter/Ballistic Protection: optional with armor plate
Installation options: casting / retrofit, right/left
Locking mechanism: multiple, locking bolts
Equipped with seal for gas tightness





















