36" wide x 48" high 3 Hour Fire-Rated Insulated, Double Door Access Panels for Walls and Ceilings
The largest fire-rated three hour ceiling door available with removeable center mullion. Double leaf allows greater accessiblity.
Materials: Satin finish galvanized steel or 304 stainless steel
Frame: 14 ga steel. Removable center mullion (max 48”). Frame Depth 3 1/4”.
Wall Trim: 1-1/4” (32mm).
Door Panel:18ga, liner 22ga with slam latch.
Insulation: The door panel contains 2 1/2” of high temperature insulation material.
Finishes: Paint finish is an electrostatically applied rust-inhibitive prime coat or # 4 polished stainless steel finish on exterior surface
Hinges: Concealed continuous rod hinge. 48” or longer in wall position will be a continuous piano hinge. The hinge is placed on the “H” dimension.
This model of wall and ceiling fire-rated panels is manufactured under the factory inspection service of Intertek Warnock Hersey) and have a label reading: “Listed access frame and insulated fire door assembly 3 hour fire rating. Vertical and Horizontal Installation. Temperature rise maximum 77° F / 43° C at 30 minutes, 268° / 149° C at 60 minutes.”