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explain positive latching
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Question
Answer
Is the Von Duprin Guard-X exit device fire rated?
Resolution:
The Von Duprin Guard-X exit device is not fire rated because the deadbolt is not spring loaded. Therefore, there would be no positive latching as required on a fire rated opening. :
What is the difference between Panic Hardware and Fire Exit Hardware?
Resolution:
The most obvious difference (in the device) is the lack of mechanical dogging on a Fire Rated Device. There are some internal parts that may be different and the method it is secured to the d...:
What is power boost on a Benchmark operator?
Resolution:
Power Boost is a positive latching feature that increases the latch force, to over come building stack pressure or door weather stripping, etc, if the door stops before coming compl...:
Are the wires on a Von Duprin 6000 series electric strike polarized?
Resolution:
The wires on 6000 series electric strike solenoid are non polarized.:
Why is the Von Duprin 55 or 88 series crossbar sagging?
Resolution:
There are a number of reasons the Von Duprin 55 or 88 series cross bar may not operate properly:The hinge case spring lifts both lever arms and the crossbar. To check spring, push down on...: