{"operation":"document","citation":"PI-96-019","title":"Koch Industries, Inc. — Pipeline Safety Interpretation","source_type":"guidance","agency":"Pipeline and Hazardous Materials Safety Administration","status":"guidance","official":true,"published_on":"1996-09-10","effective_on":null,"summary":"PI-96-019 response to Koch Industries, Inc. concerning 195.116.","machine_formats":{"json":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-96-019.json","markdown":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-96-019.md"},"app_url":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-96-019","source_url":"https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/Pipeline/1996/PI96019.pdf","body":"<<<PAGE 1>>>\n\nMr. Cliff Donnelly\nEngineer\nKoch Industries, Inc.\nP.O. Box 2256\nWichita, KS 67201\nDear Mr. Donnelly:\nThis is in response to Mr. Mark C. Swanson’ s letter of July 15, 1996. I understand Mr. Swanson\nis no longer with Koch. Mr. Swanson stated that 49 CFR Part 195 requires valves to be tested to\nat least the requirements of section 5 of API Standard 6D, “ Specification for Pipeline Valves\n(Gate, Plug, Ball, and Check Valves),” and asked the following question:\n“Is it possible under DOT 195 regulations to set a pipeline to have an MOP of\n1480 psi by using class 600 flanged fittings and by using valves designed,\nmanufactured, and tested to 1480 psi MOP, without increasing to class 900\nvalves?”\nThe answer is “ yes.” The maximum operating pressure rating for standard Class 600 valves in\nAPI Standard 6D (6D) in an operating temperature range of -20° F to 100° F is 1440 psig.\nHowever, 6D provides for valves constructed of certain materials listed in Table 3.1 of 6D to be\nrated according to American National Standards Institute (ANSI) B 16.34 or ANSI B16.5. ANSI B\n16.34 is entitled “ Valves - Flanged and Butt Welding Ends” and ANSI B 16.5 is entitled “ Pipe\nFlanges and Flange Fittings.” In both ANSI B 16.34 and ANSI B 16.5, the pressure rating for\nClass 600 fittings in an operating temperature range of -20° F to 100° F is 1480 psig. These\nvalves are called “ alternate flanged end valves” (section 2.2 b of 6D) or “ alternate weld end\nvalves” (section 2.2 c of 6D).\nTable 6.1 on 6D requires alternate valves to be marked with the class designation followed by\n“ ALT,” and the pressure rating at 100° F followed by the letters “ MOP.” In this case, the marking\non each valve for visual identification would be “ 600 ALT” and “ 1480 MOP” respectfully.\nSection 195.116 (d) require each valve installed in a pipeline to be both hydrostatically shell\ntested and hydrostatically seat tested without leakage to at least the requirements set forth in\nsection 5 of API Standard 6D. For alternate valves, the testing requirements in section 5 of 6D\n\n<<<PAGE 2>>>\n\n2\nrequires the hydrostatic test pressure to be 1.5 times the 100° F pressure rating (section 5.2) and\nthe hydrostatic seat test to be 1.1 times the 100° F pressure rating (section 5.3).\nI hope this fully answers your inquiry.\nSincerely,\nRichard D. Huriaux\nDirector for Technology and Regulations\nOffice of Pipeline Safety\nLWUlrich:jmd:64046:9-10-96\ncc: DPS-1,2,10,20,Regions,StateMailing\nTSIEMail","truncated":false,"body_characters":2475}