FHD4R – Four hour fire rating

MAXAM’s Model FHD4R fire-rated floor is tested for a four hour fire rating. Model FDH4R controls the transmission of heat, hot gases, and flames when installed in a fire-rated floor-ceiling assembly. Tested and listed to the first ever 2001 edition of NFPA 288 test standard. Model FHD4R allows for access to equipment and crawl spaces and has been sturdily built to ensure quality and dependability. Tailored to offer simple installation for various design and installation requirements. For standard sized products, heavy duty stainless steel gas cylinders and standard for a 90 degree opening.