{"operation":"document","citation":"PI-73-0102","title":"The Pipe Line Development Company — Pipeline Safety Interpretation","source_type":"guidance","agency":"Pipeline and Hazardous Materials Safety Administration","status":"guidance","official":true,"published_on":"1973-02-09","effective_on":null,"summary":"PI-73-0102 response to The Pipe Line Development Company concerning 192.153.","machine_formats":{"json":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-73-0102.json","markdown":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-73-0102.md"},"app_url":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-73-0102","source_url":"https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/Pipeline/1973/g73-02-09_Smith_192.153%20-%20lmxs.pdf","body":"<<<PAGE 1>>>\n\nPI-73-0102\n2-9-73\nMr. Edward B. Smith\nPresident, The Pipe Line\nDevelopment Company\n1831 Columbus Road\nCleveland, Ohio 44113\nDear Mr. Smith,\nThis is in response to your letter of January 25, 1973, asking whether bolted split sleeves rather than welded split sleeves\nmay be used in certain repairs on transmission lines in view of the requirements stated in sections 192.717 and\n192.153(b)(4).\nAlthough your letter states that section 192.717 requires a welded split sleeve, a recent amendment to that section\n(Amendment 192-12 issued October 11, 1972) now provides an exception. Thus, if the repair is to be made on a\ntransmission line joined by mechanical couplings and operated at less than 40 percent of SMYS, use of a bolted split\nsleeve would be acceptable under the amended requirement.\nYour letter asks whether your bolted split sleeves might be used for repair under the provision of section 192.153(b) (4),\nsince you test them to twice working pressure. The requirements of section 192.153(b) (4), however are applicable to\nthe design of pipeline components whereas section 193.717 applies to the permanent field repair of leaks on\ntransmission lines. Thus section 192.153(b)(4) does not provide an exception from the repair requirements of section\n192.717.\nIf you have further questions in this matter please call on us.\nSincerely,\nJoseph C. Caldwell\nDirector\nOffice Of Pipeline Safety\n\n<<<PAGE 2>>>\n\nThe Pipe Line Development Co.\n1831 Columbus Road\nCleveland, Ohio 44113\nJanuary 25, 1973\nDepartment of Transportation\nDirector, Office of Pipeline Safety\nWashington, D.C. 20590\nGentlemen:\nSeveral of our customers who use our PLIDCO Split Sleeves for repairs on their underwater gas pipelines have been\nconcerned with the requirements of the Minimum Safety Standards for Gas Pipelines.\nSection 192.717 requires that a repair for other than a corrosion pit must be made by a full encirclement welded split\nsleeve. I have enclosed a bulletin on our PLIDCO Split Sleeve; it shows that our sleeve can form a seal and be left\nunwelded.\nWelding underwater has proved to be very poor if done \"wet\" or extremely expensive if done in a chamber.\nTherefore I wonder if our customers might use bolted split sleeves for leaks other than corrosion pits under the\nprovision in Section\n192.153 (b)(4) which permits the use of components fabricated by welding if the manufacturer certifies that they have\nbeen tested to twice working pressure. We test 100% of our sleeves to twice working pressure.\nSincerely yours,\nEdward R. Smith\nPresident","truncated":false,"body_characters":2546}