Q: Is the Von Duprin 6223 fire rated for pairs of wood doors?
A: The 6223-FSE electric strike is fire rated for pairs of wood doors, but check with wood door manufacturer to see if they have been approved for this application.
Q: Is the device centerline of the 9975, the same as the centerline of the 6223 strike?
A: The centerline of 6223 is the same as the centerline of the mortise latch bolt.
So the centerline of the mortise latch bolt or centerline of the 6223 is 15/32" above the centerline of the device.
Q: Why doesnt Von Duprin supply a template for the 6223 closed back double door electric strike showing all the different mortise locks it can be used with?
A: Per the template, as long as the latchbolt for the mortise lock or cylindrical lock is lined up with the centerline of the 6223 electric strike, it will function as required. Different offsets for the mortise locks may be required but that must be determined by the customer.
Q: Why doesnt Von Duprin supply a template for the 6223 closed back double door electric strike showing all the different mortise locks it can be used with?
A: Per the template, as long as the latchbolt for the mortise lock or cylindrical lock is lined up with the centerline of the 6223 electric strike, it will function as required. Different offsets for the mortise locks may be required but that must be determined by the customer.