The pass-through line extends through an opening formed in the sealing structure. Closet Flange Firestop Gasket. SSP Putty is non-hardening and easily hand works around grouped cabling penetrations forming a re-enterable seal allowing for future work. Year of fee payment: International Our complete product brochure designed for international markets. More specifically, the secondary seal includes an outer radial wall and an inner radial wall and an axial wall Additional attempts at sealing firewall pass-throughs include the use of a fireproof, reinforced silicone primary seal or boot that provides a barrier between the fire zone and the ignition zone by surrounding structural tubing that extends through the firewall.
In addition, over time damage may occur to the portion of the sealing structure that is in contact with the ignition zone.
US20080265525A1 - Firewall sealing assembly - Google Patents
Let our firestop experts assist by reviewing your firestop specifications and making appropriate recommendations. Detail sheets are documents grouped together with the most commonly used systems in five categories. When exposed to flame and high temperatures, the intumescent pads expand to form a dense insulative char that prevent the passage of smoke and flame. Under fire exposure, SSC Collars quickly expand and collapse combustible piping forming a dense char, resisting the passage of smoke and flame. It will be appreciated that the duct may alternatively be any one of numerous other components that may need to extend through the firewall openingsuch as, for example, piping, wires, structural tubing, and any other penetrating member. The primary seal is generally annular in shape and includes an inner peripheral edge that defines a duct opening Under fire exposure, the intumescent pads expand and swell resisting the passage of smoke and flame.