{"operation":"document","citation":"PI-72-045","title":"Anderson, Greenwood & Company — Pipeline Safety Interpretation","source_type":"guidance","agency":"Pipeline and Hazardous Materials Safety Administration","status":"guidance","official":true,"published_on":"1972-10-31","effective_on":null,"summary":"PI-72-045 response to Anderson, Greenwood & Company concerning 192.145, 192.203.","machine_formats":{"json":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-72-045.json","markdown":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-72-045.md"},"app_url":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-72-045","source_url":"https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/Pipeline/1972/PI72045.pdf","body":"<<<PAGE 1>>>\n\nOct 31 1972\nMr. J. H. Jordan\nAnderson, Greenwood & Company\nIndustrial Products Division\nP.O. Box 1097\nBollaire, Texas 77401\nDear Mr. Jordan:\nThis is in response to your letter of October 5, 1972, addressed to our Houston Office, regarding\ninstrument and control valves. You note that Section 192.203(b) does not refer to any written\nspecification for valves and that API 6D, referenced in Section 192.145, covers valves 2 inches\nand larger. You ask which specification applies to valves that are under 2 inches in size.\nSection 192.203 applies to the design of instrument, control, and sampling pipe and components,\nexcept for permanently closed systems. That section requires that all material employed for pipe\nand components must be designed to meet the particular conditions of service and to meet certain\nlisted requirements. Where relevant, the standards contained in Section 192.203(b) apply to\nvalves. Specific valve requirements, however, are set forth in Section 192.145 which states that\neach valve must meet the requirements of one of the listed industry standards or the equivalent.\nPublished specifications do not exist for all types and size of valves that are manufactured.\nHowever, there are certain basic safety design features that can be adapted to all these valves. In\nSection 192.145, the word \"equivalent\" is used in the sense of providing equivalent safety. Thus,\nalthough the listed specifications do not cover all sizes and types of valves, the valves not covered\nmust at least meet the applicable safety requirements contained in the listed specifications.\nThe fact that the valves with which you are concerned are used in instrument manifolds rather\nthan in the actual pipelines is not of significance. Valves used in both applications are pipeline\ncomponents and are governed by the regulations contained in Subpart D of Part 192.\nI trust this answers your inquiry.\nSincerely,\nJoseph C. Caldwell\nDirector\nOffice of Pipeline Safety\ndal\\192\\145\\72-10-31\n1","truncated":false,"body_characters":1996}