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With all the available types and options, it can be difficult to know which closer to specify. Frequency of use, life-cycle cost, aesthetics and the necessary features and functions all need to be taken into consideration. In addition, there are code requirements that must be taken into account. During the opening cycle of a door, the closer’s function is to allow the door to open easily, except at the end of the cycle when backcheck is applied. The backcheck feature cushions the opening swing to prevent the door from hitting the stop with excessive force. For very abusive applications, the advanced variable backcheck option provides the cushioning effect earlier in the opening cycle. During the closing cycle, the closer should maintain a uniform closing speed until within a few degrees from the latch. In this position, the latch speed will ensure the door closes firmly and latches without slamming.
Exit devices are a critical part of the fire and life safety egress system and will provide safe, reliable service when properly applied and maintained. Brass Lock and Key features Von Duprin designed and manufactured exit devices in accordance with ISO 9001 Quality Management System and meets or exceeds accepted U.S. domestic and International standards.
A fluid damper decelerates the pushpad on its return stroke and eliminates most noise associated with exit device operations, while the deadlocking latchbolt provides security and improved performance at standard device cost. Efficient, cost effective solutions: Brass Lock and Key.
A Passive Infrared Request to Exit Device (PIR) is a motion detector specifically designed to reliably release magnetic locks. A person approaching the door is "seen" by the motion detector just before reaching the door. It has an adjustable 1-60 second time delay. The coverage field is internally pointable. When angled 14º down, coverage may be 5 x 6 feet at 7 feet high to 10 x 12 feet at 15 feet high.