ESFR system materials tend to cost more than control mode systems (larger pipe sizes, more expensive sprinkler heads). Also, in most cases an ESFR system will require the installation of a fire pump, which is not always required for a control mode system. sprinkler systems are not required.
Definition of flay. 1 : to strip off the skin or surface of : skin The hunter flayed the rabbit and prepared it for cooking. 2 : to criticize harshly : excoriate He was flayed by the media for his controversial comments.
(flÄl) n. A manual threshing device consisting of a long wooden handle or staff and a shorter, free-swinging stick attached to its end. v. flailed, flailÂ·ing, flails. v.tr. 1. To beat or strike with or as if with a flail: flailed our horses with the reins. 2. To wave or swing vigorously; thrash: flailed my arms to get their attention.