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“ are key removable mullions fire rated ”

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Question
Answer
How do I order a Von Duprin mullion prepped for something other than our standard strikes?
To use Von Duprin mullion for something other than our standard strike, order the mullion "Blank" and prep in the field.
Which keyed removable kit is used with a 4754, 4854, 9854, or 9954 mullion?
The Von Duprin 4754, 4854, 9954, and 9854 mullions can be converted or ordered with key removable option. KR54-F kit is the conversion kit to convert the above mullions to key removable mullion.
Where is the fire label located on a fire rated mullion?
The UL fire label is at the bottom of the fire rated mullion.  The mullion also ships with a sticker which notes the bottom of the mullion should not be cut.  Cutting would remove the fir...
Are astragals required on 3 hour rated pairs of doors?
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...