{"operation":"document","citation":"PI-76-031","title":"Indiana Public Service Commission — Pipeline Safety Interpretation","source_type":"guidance","agency":"Pipeline and Hazardous Materials Safety Administration","status":"guidance","official":true,"published_on":"1976-06-16","effective_on":null,"summary":"PI-76-031 response to Indiana Public Service Commission concerning 192.3, 192.461.","machine_formats":{"json":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-76-031.json","markdown":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-76-031.md"},"app_url":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-76-031","source_url":"https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/Pipeline/1976/PI76031.pdf","body":"<<<PAGE 1>>>\n\nJune 16, 1976\nMr. Thomas P. VanArsdel, P.E.\nDirector, Pipeline Safety Division\nIndiana Public Service Commission\n901 State Office Building\nIndianapolis, IN 46204\nDear Mr. VanArsdel:\nYour letter of May 10, 1976, requests the Office of Pipeline Safety Operations (OPSO) official\nopinion on Dekoron Tripl-dek aluminum tubing for use in gas distribution systems.\nOPSO does not approve, disapprove, or endorse proprietary items. The brochure included with\nyour letter indicates that Tripl-dek consists of aluminum tubing with an internal copolymer\ncoating and an external polyethylene jacket.\nAbsence of specifications for a given material in 49 CFR Part 192 does not necessarily preclude\nits use provided the general requirements that are applicable to all materials are met.\nThe requirements of 49 CFR Part 192 apply to all pipelines regardless of material. In addition,\nsome sections specify specific limits for design or operating conditions of certain materials. Part\n192 does not presently specify design criteria for aluminum pipe, however, such pipe would have\nto be capable of meeting the general requirements and level of safety otherwise prescribed by the\nregulations. Since the regulations contain no specific design or material specifications for\naluminum pipe, it would be appropriate to consider the engineering properties of aluminum and\nfollow design procedures similar to those required for other materials. This particular product\nwould be similar to plastic coated steel tubing that is being used in the gas industry. You should\nalso note that the external coating must comply with the requirements of Section 192.461,\nExternal corrosion control: protective coating.\nThank you for your continued interest in pipeline safety.\nSincerely,\nCesar DeLeon\nActing Director\nOffice of Pipeline\nSafety Operations\nDAL\\192\\3\\76-06-16\n1\n\n<<<PAGE 2>>>\n\nSTATE OF INDIANA\nPUBLIC SERVICE COMMISSION\nMay 10, 1976\nMr Cesar DeLeon, Acting Director\nOffice of Pipeline Safety Operations\nMaterials Transportation Bureau\nU.S. Department of Transportation\nWashington, D.C. 20590\nDear Mr. DeLeon:\nWould you please give us OPSO's official opinion on Dekoron Tripl-Dek.\nWe have some doubts that it meets the requirements of Part 192. If it is considered a plastic pipe,\nthe temperature rating listed by the manufacturer is too high. If it is considered Aluminum tubing,\nit must be cathodicly [sic] protected and will the lapped construction of this tubing, by its-self,\ncarry distribution pressure?\nYour prompt reply will be appreciated.\nYours very truly,\nThos. P. VanArsdel, P.E.\nDirector, Pipeline Safety Division\nDAL\\192\\3\\76-06-16\n2\n\n<<<PAGE 3>>>\n\nDAL\\92 3176-06-16","truncated":false,"body_characters":2669}