FIRE RATED MULLIONS

RELATED FAQS

Question
Answer
To use Von Duprin mullion for something other than our standard strike, order the mullion "Blank" and prep in the field.
The HH9954 is the only Von Duprin hurricane impact-rated mullion. Hurricane ratings vary by location and application. Be sure to check with the local authority and/or the Regional Allegio...
All 3 hour fire rated pairs of doors do require an astragal when used without a removable hardware mullion. Pairs of doors with removable hardware mullions are treated and listed as 2 single doors...
The Von Duprin XP98/99 device uses a different strike than standard 98/99 device. The 909 strike is for non fire rated XP devices and the 954 strike is for the fire rated XP device. 49/9954 mul...
The 909 strike is used in single and paired non-fire rated and single fire rated openings.  The 954 strike is used in fire rated paired openings.
The 1609 strike cannot be used with Von Duprin XP98/99 exit device.