Fire, Blast, Sound and Super Insulated Doors
Hazmat Building doors are required to be a minimum of either 1-1/2 or 3 hour fire rated construction. In truth, most door companies have tested and passed for 3 hours and offer the same door labeled with 1-1/2 or 3 hour labels depending on what the specification calls for. The 1-1/2 hourly rated doors are specified for 1 and 2 hour fire rated buildings and 3 hour fire rated doors are for 4 hour fire rated buildings. There are common fire only rated doors and then there are combination fire and ever increasing pounds per square foot blast rated doors which have upgrades for sound ratings.
Common Fire Rated Doors
Common fire rated doors are equipped with doorknobs/latches, keyed cylindrical lock sets ,(3) ball bearing hinges and not blast rated. They can be equipped with low profile panic hardware, closures with fusible link release hold open device, manual or automatic operated coordination door-closing device and automatic gravity operated coordinating door closing device.
Haz-safe’s Standard Blast, Fire and Sound Rated Doors
Custom Blast Rated Doors
When there is a need for high security, the explosion proof doors pictured below are custom designed to provide the amount of blast rating required. The doors are inherently fire rated with high acoustical capabilities. The doors have as a minimum 14 gauge frames and skins and are equipped with stainless steel cam operating self-closing hinges very capable of compressing rubber seals. Many optional features are available.