Understanding what different smoke detectors are designed to do and how well their design and functions match up with the requirements and conditions of different facility environments goes a long way toward knowing where and when to use a certain type of detector.
As the use of plastic piping (such as ABS, CPVC, PE and PVC) in construction gained popularity, considerable testing and research took place to address issues related to fire performance.
This article discusses the physical attributes of flexible fire sprinkler connections, and the financial/economic aspects of specifying flexible connections rather than hard-pipe armovers.