EI1 120 fire-resistant and pressure-resistant sectional door PRESSURELOCK

Our Winlock fire-rated sectional shutters provide reliable fire protection for 60 to 240 minutes, fully compliant with European standards. They are designed for industrial and commercial applications where fire compartmentation is crucial for safety and operational continuity.

The PRESSURELOCK sectional shutters are specifically engineered for environments where overpressure or underpressure can occur, such as cleanrooms, airlocks or CO₂ extinguishing systems. In these situations, it is crucial that the door remains structurally intact while maintaining full fire compartment integrity.

This type of industrial shutter is also designed to withstand blast waves from external explosions (blast resistance) without any structural failure. The construction absorbs both positive and negative pressure loads as well as the dynamic impulse of the explosion, a key requirement in demanding sectors such as petrochemical industries, defence, ATEX environments, and nuclear facilities.