{"operation":"document","citation":"PI-70-0110","title":"Manufacturers Standardization Society of the Valve &amp; Fittings Industry — Pipeline Safety Interpretation","source_type":"guidance","agency":"Pipeline and Hazardous Materials Safety Administration","status":"guidance","official":true,"published_on":"1970-11-09","effective_on":null,"summary":"PI-70-0110 response to Manufacturers Standardization Society of the Valve &amp; Fittings Industry concerning 192.149.","machine_formats":{"json":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-70-0110.json","markdown":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-70-0110.md"},"app_url":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-70-0110","source_url":"https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/Pipeline/1970/g70-11-09_Warrick_192.149-lmxs.pdf","body":"<<<PAGE 1>>>\n\nPI-70-0110\nNovember 9, 1970\nMr. Robert V. Warrick\nExecutive Secretary\nManufacturers Standardization Society\nof the Valve & Fittings Industry\n1815 North Fort Myer Drive\nArlington, Virginia 22209\nDear Mr. Warrick:\nThis is in reply to your request for an interpretation of 49 CFR, Section 192.149 concerning the\nrequirements for butt-welding fittings. You ask if there is compliance with the requirements of\nSection 192.149(b) if -\n(1) Manufacturers will certify that prototype burst testing has been done to establish\nlines of fittings and\n(2) Manufacturers will document field test experience on fittings representative of\nsize, thickness and material strength to a pressure as high as required for the\npipeline to which it is being added.\nThe first sentence of Section 192.149(b) is taken from the ANSI B31.8 Code, Section 831.31(b)\nexcept that the Code references to ANSI B16.9, MSS SP-48 and MSS SP-63 have been omitted.\nThe second sentence of Section 1-2.140 is a restatement of the requirements for a bursting\nstrength test as provided for by ANSI B16.9 paragraph 8 by MSS SP-48 paragraph 8.\nThe practice described in your letter meet the requirements of Section 192.149(b) provided that\nthe steel butt-welding fittings being tested also have temperature ratings based on stresses for\npipe of the same or equivalent material.\nIf we can be of further assistant, please do not hesitate to ask.\nSincerely,\nJoseph C. Caldwell\nDirector, Acting\nOffice of Pipeline Safety\n192.149 1\n\n<<<PAGE 2>>>\n\nMr. Joseph Caldwell\nActing Director\nOffice Pipeline Safety\nOffice of the Secretary of Transportation\n400-6th Avenue\nWashington, D. C.\nSubject: Request for Interpretation of Regulations\nDear Mr. Caldwell:\nManufacturers of Butt Welding Fittings belonging to this organization, have reviewed the\nrecently issued regulations pertaining to safety in gas pipelines and regret that the proposed\nwording of paragraph 192.149(b), may be misinterpreted. Accordingly, it would be appreciated\nif an interpretation of this paragraph can be received. We wonder if conformance to the\nregulation will be accomplished if the following criteria are observed: (1) Manufacturer will\ncertify that prototype burst testing has been done to establish lines of fittings. (2) Manufacturer\nwill document field test experience on fittings representative of size, thickness and material\nstrength to a pressure as high as that required for the pipeline to which it is being added.\nIt is believed that this is a reasonable statement of the practice of manufacturers supplying\nwelding fittings for existing pipelines and whose products have provided safe service for a\nsubstantial number of years. We would appreciate your opinion of this proposal.\nVery truly yours,\nRobert V. Warrick\nExecutive Secretary\n192.149 2","truncated":false,"body_characters":2790}