SPIRAL PAID-OFF PIPING FOR SPRINKLER

摘要

PURPOSE:To provide a spiral paid-off piping for sprinkler with which the problem of welding arc to be generated in the case of using a conventional stainless bellows tube or a single copper tube or the problem of the bucking or flattening of a bent part can be solved and the execution of piping is facilitated by reducing flow resistance. CONSTITUTION:Concerning the spiral paid-off piping for sprinkler, a branch pipe for supplying water and a sprinkler head are connected by a flexible pipe. Then, the flexible pipe is composed of an inside soft copper pipe 10 and a metallic flexible pipe 30 armouring the outer periphery of the soft copper pipe, and the soft copper pipe 10 forms a suitable bent part corresponding to a piping position between the branch pipe for supplying water and the sprinkler head so as to air-tightly connected them.