The valve on the back of a 4041/4040XP closer is a "Back Check Selector Valve" that needs to be turned in on "Parallel Arm" mount applications ONLY. If a 4041/4040XP closer mounted "Top Jamb", or "...
Surface Mounted door closers are the most durable and common type of door closer.
Mounted to the surface of the door or frame
Can be configured (through installation or arm type) to meet a...
Exit devices are not designed for exterior application.
If used in an exterior applications then a powder coated finish on the 33/35 and 98/99 series are recommended for exterior applications.
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Most Panic devices are not designed for exterior applications.
As with any mechanical device, exposure to the elements may affect the operation and life of the device and/or finish an...
A 4110 with AVB (advance variable back check) would be recommended. Using a SCUSH (Spring Cush) arm will also help minimize shock to all door hardware.