Roof Door Vents to JET-X Hi-Ex Foam Generators

ANSUL® Automatic Roof Door Vents utilize gas spring operators with integral dampers for controlled opening of the doors to prevent damage to the doors or building. The doors are held closed by a latching mechanism which utilizes a separate latching point for each door. The latch is held in place by a UL Listed 165 °F (74 °C) fusible link and releases automatically when the fusible link melts or is disengaged by a hydraulic cylinder operated by foam solution pressure supplied when the high-expansion foam system operates. The latching mechanism can also be released manually using interior or exterior pull cables. Once open, the door covers are locked in place by the hold open feature of the gas spring operators.