{"operation":"document","citation":"HAR 6-77-78","title":"HAR 6-77-78 Miter joints","source_type":"regulation","agency":"Hawaii Public Utilities Commission","status":"current","official":true,"published_on":"1994-04-15","effective_on":"1994-09-03","summary":"produced a hoop stress of thirty percent or more of SMYS may not deflect the pipe more than 3E. (b) A miter joint on steel pipe to be operated at a pressure that produces a hoop stress of less than thirty percent, but more than ten percent, of SMYS may not deflect the pipe more than 12-1/2E and must","machine_formats":{"json":"https://regulus.evalyn.ai/document/hi-har-har-6-77-78.json","markdown":"https://regulus.evalyn.ai/document/hi-har-har-6-77-78.md"},"app_url":"https://regulus.evalyn.ai/document/hi-har-har-6-77-78","source_url":"https://puc.hawaii.gov/wp-content/uploads/2026/04/HAR-6-77-Transp-of-Gas-03-31-2026.pdf","body":"produced a hoop stress of thirty percent or more of SMYS may not deflect the pipe more than 3E. (b) A miter joint on steel pipe to be operated at a pressure that produces a hoop stress of less than thirty percent, but more than ten percent, of SMYS may not deflect the pipe more than 12-1/2E and must be a distance equal to one pipe diameter or more away from any other miter joint, as measured from the crotch of each joint. (c) A miter joint on steel pipe to be operated at a pressure that produces a hoop stress of ten percent or less of SMYS may not deflect the pipe more than 90E. [Eff ] (Auth: HRS '269-6) (Imp: 49 C.F.R. '192.233, October 1, 1990)","truncated":false,"body_characters":654}