A self-acting damper that is part of that is part of the pressurization system.
Pressure relief damper EKO-JVV is a self-acting damper that is part of the pressurization system EKO SafeEvac and complies with EU Standard EN 12101-6. The damper keeps the overpressure constant in escape routes such as stairwells and elevator shafts during pressurization activated in the event of fire.