{"operation":"document","citation":"05-0195","title":"Goodall Rubber Company — Hazardous Materials Safety Interpretation","source_type":"guidance","agency":"Pipeline and Hazardous Materials Safety Administration","status":"guidance","official":true,"published_on":"2006-04-20","effective_on":null,"summary":"05-0195 response to Goodall Rubber Company concerning 178.337.","machine_formats":{"json":"https://regulus.evalyn.ai/document/phmsa-interpretation-05-0195.json","markdown":"https://regulus.evalyn.ai/document/phmsa-interpretation-05-0195.md"},"app_url":"https://regulus.evalyn.ai/document/phmsa-interpretation-05-0195","source_url":"https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/2005/050195.pdf","body":"<<<PAGE 1>>>\n\nof Transportatior\nU.S. Department\n400 Seventh Street, S.W.\nWashington, D.C. 20590\nHazardous Materials Safety\nPipeline and\nAdministration\nAPR 20 2006\nMr. Brad Ferstan\nRef. No. 05-0195\n3525 Labore Road\nGoodall Rubber Company\nVadnais Heights, MN 55110\nDear Mr. Ferstan:\nThis responds to your letter regarding the use of rubber hose fittings on MC-331 cargo\ntanks in accordance with the Hazardous Materials Regulations (HMR; 49 CFR Parts 171-\nmade to NPTF thread specification would be acceptable to use on MC-331 cargo tanks,\n180). Specifically, you asked if your understanding is correct that rubber hose fittings\nprovided they meet all applicable requirements of § 178.337-9.\nFor an MC-331 cargo tank, pipe joints must be threaded, welded, or flanged. If threaded\npipe is used, the pipe and fittings must be \"Schedule 80\" weight or heavier, except for\nsacrificial devices. Malleable metal, stainless steel, or ductile iron must be used in the\nconstruction of primary valve body parts and fittings used in liquid filling or vapor\nequalization. As a result, a rubber fitting cannot be used in any connection on the cargo\ntank that involves either filling the tank or any system on the tank that provides for vapor\nequalization. Stainless steel may be used for internal components such as shutoff discs\nand springs except where incompatible with the lading to be transported. Where copper\ntubing is permitted joints must be brazed or be of equally strong metal union type. The\nmelting point of the brazing material may not be lower than 538°C (1,000°F). The\nmethod of joining tubing may not reduce the strength of the tubing. (See § 178.337-9\n(b) (2)).\nThe hose identification, inspection, and testing requirements for hoses on cargo tanks\nrequirements apply to delivery hoses and hose assemblies only. A rubber hose used as a\nused to transport liquefied compressed gases are in §180.416 of the HMR. These\nflexible connector in the piping system of a cargo tank is not a delivery hose. Thus, such\nrubber flexible connectors need not be marked with a unique identifier and are not subject\nto the periodic inspection, testing, and recordkeeping requirements applicable to delivery\nhose assemblies in § 180.416. Note, however, that rubber flexible connectors must be\n178.337-9\n050195\n\n<<<PAGE 2>>>\n\ninspected and tested in accordance with requirements applicable to piping systems in\n§ 180.416\nI hope this information is helpful. If we can be of further assistance, please contact us.\nSincerely,\nJohn A. Gale\nChief, Standards Development\nOffice of Hazardous Materials Standards\n\n<<<PAGE 3>>>\n\nTo: Page 1 of 1\n2005-08-12 18:47:35 (GMT)\n6513053089 From: Brad Ferstan\nEngrum\n8178.337-4\nFAX COVER SHEET\nCargo Tanks\n05-0195\nTO\nCOMPANY\nFAX NUMBER\n12023663012\nFROM\nBrad Ferstan\nDATE\n2005-08-12 18:54:09 GMT\nRE\nATTN: Edward Mazzullo\nCOVER MESSAGE\nEdward,\nregarding the hose\nI was told to contact you regarding a question I had\nconnection on an MC331 cargo tank, specifically section\n178.337-9, part b\n- piping, valves, hose, and fittings. .\nCan I please get a written response from you regarding my\nquestion?\nIt\ncan be faxed to the number below or e-mail to me at\nbrad.ferstan@trelleborg.com.\nMy question is whether paragraph 2 of the previously\nmentioned section\napplies to rubber hose fittings? It has been my\nhose fittings, or couplings, made to the NPTF thread\nunderstanding that rubber\nspecification\nwould\nbe acceptable provided that they meet all other\nparagraphs 3 and 7.\nrequirements such as\nCan you please help me out? Thank you for your assistance.\nBrad Ferstan\n3525 Labore 1\nGoodall Rubber Company - Minneapolis/St. Paul\nBranch Sales Manager\nVadnais Heyh\nPH: 612-382-2519\nMN 55110\nFax: 651-305-3089\n11003313349\n× 223\nGET FREE ONLINE FAX DELIVERY FROM •FAX\nWWW.EFAX.COM","truncated":false,"body_characters":3778}