double cylinder function

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The 98/99 rim device can be converted to double cylinder 98-2 or 99-2. Double cylinder features an inside key cylinder which locks or unlocks the outside trim (Classroom Function) and an outside c...
Inside cylinder locks and unlocks the outside trim, such as thumb piece, knob or lever.  Outside cylinder functions as an NL when inside cylinder locks the outside trim.Double cylinder fe...
The Von Duprin CD kit comes with the cover plate machined to accept the cylinder dogging mortise cylinder.1 1/4" mortise cylinder with an inverted straight cam is required for CD option on Von Dupr...
Standard and Full Size I/C mortise cylinders on the L9485 and L9486, Hotel or Restroom Locks, use the concept of a ward ring to lock out all change keys once the deadbolt is thrown. Instead of a fu...
HANDINGA stop ring is installed on the right side for right hand operation and on the left side for left hand operation.  Right hand shown below.
To add a cylinder to the 98/99-EO rim device order a 110NL-MD for metal door or 110NL-WD for wood door with a standard rim cylinder and prep the door per template.
This is possible: For metal doors prep door according to the 24R/V NL-OP Template or the 25R/V NL-OP Template and for wood doors use 24R/V NL-OP Wood Template or 25R/V...