Standard 98/99 exit alarm ALK devices are available with cylinder dogging option as of October, 2011.
The device can be ordered standard with cylinder dogging and exit alarm ALK opti...
Depending on the application, there are two types of blocking rings offered for mortise cylinders- One for use with a compression ring, and one for use without. When a compression ring is u...
After selecting the correct blocking ring, specify the thickness. The table below shows the different thicknesses that the rings are offered in.
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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...