ATM SL-1 / SL-1S

ATM SL-1 and ATM SL-1S shelter hatches with opening outwards toward the blast wave direction are designed to meet and, in some parameters, to exceed the Finnish norms for S1 shelters. The hatch leaf is made from a 20mm thick single steel plate for ATM SL-1 and a 30mm steel plate for ATM SL-1S, providing additional splinter protection. ATM SL-1 hatches have a multipoint locking system with levers, providing improved protection against blast wave pressure and are equipped with a rubber seal for gas tightness.