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Subject : Solid restraint of branch lines

Question asked by kvc1 on Aug 7, 2016
Latest reply on Aug 8, 2016 by nocivus

Please refer to NFPA-13, (5), “A hanger not less than 45 degrees from vertical installed within 6 in. (152 mm) of the vertical hanger arranged for restraint against upward movement, provided it is utilized such that       does not exceed 400, where the rod shall extend to the pipe or have a surge clip installed”


Our question is that “the rod to extend to the pipe or have a surge clip”

Shall be applied for lateral hanger only or for both of lateral hanger and vertical hanger such as Figure A (5)(a),(b). Please reply which installation is correct.



J  S  Kim