咸宁附近想过夜电话联系

four Where is the hourly fire resistance rolling shutter

          When fire shutter appeared in China, the fire resistance limit is three Then it gradually appeared four Of course, the fire resistance of the building is tested for fire resistance and fire resistance.

         Later, there was a super fire shutter, but the national standard "fire shutter" (gb14102-2005) only stipulates the fire resistance of 3 hours, so the super fire shutter basically tests the heat insulation of 3 hours, that is to say, the fire curtain which is often used to test the temperature rise of the back fire surface does not need water curtain protection.

But in the actual design, the workshop, warehouse and so on fire shutter partition often needs to use 4 hours heat insulation fire shutter, this needs Fire shutter with 4 hours fire resistance Because of the relatively small amount, so not many manufacturers to study this kind of fire shutter.

         Engineers have been studying the 4-hour fire-resistant rolling shutter since 1994, which is the steel fire-resistant rolling shutter with only fire-resistant integrity. Since 1999, engineers have started to study the 4-hour fire-resistant rolling shutter. At this time, it is a super-class fire-resistant rolling shutter with fire-resistant and heat-insulating properties.

Fepford's fire shutter has 4 hours fire resistance and heat insulation.


July 5, 2020

Fepfeld has developed a new type of fire truck thermal insulation shutter
Korea Komoto's new batch of actuators' fire hoods went smoothly

Last

Next

Where is the 4-hour fire resistance rolling shutter

Add time: