von duprin cylinders

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The Von Duprin 370 series control required a 1 1/4" mortise cylinder and will not operate with 1 1/8" mortise cylinder.
Double cylinders are only available on Von Duprin 98/99 Rim and 98/9975 Mortise devices.
 The tailpiece of the rim cylinder can be inserted into the Von Duprin 98/99 rim device either vertical or horizontal.
Part numbers for Schlage and Falcon cylinders for Von Duprin devices are listed below. (KIL = Key In Lock) SCHLAGE   Mortise Rim KIL ...
FALCON   Mortise Rim KIL Conventional 986 x #4 cam 951 A23165-02 Small Format Housing C987...
If unclear whether mortise, rim, or key-in-lever is needed, reference links below to determine what cylinder type is needed.  In order to determine cylinder type needed,  you must first k...
A 1 1/4" mortise with straight cam similar to the Schlage B502-191 is needed when using Von Duprin 9975 mortise device with 996L-M trim.
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...
The rim cylinder with thumbturn, XB11-979 (Figure 1) was designed to be installed on the inside head of the Von Duprin 98/99–2 double cylinder exit devices, see Figure 1. The rim cylinder with...