{"operation":"document","citation":"PI-10-0001","title":"B. Knight Natural Gas Services — Pipeline Safety Interpretation","source_type":"guidance","agency":"Pipeline and Hazardous Materials Safety Administration","status":"guidance","official":true,"published_on":"2010-11-18","effective_on":null,"summary":"PI-10-0001 response to B. Knight Natural Gas Services concerning 192.197.","machine_formats":{"json":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-10-0001.json","markdown":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-10-0001.md"},"app_url":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-10-0001","source_url":"https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretations/Pipeline/2010/PI-10-0001.pdf","body":"<<>>\n\nU.S. Department of Transportation 1200 New Jersey Ave, S,E,\nWashington, D,C, 20590\nPipeline and Hazardous Materials\nSafety Administration\nNO'J 1 S 20'0\nMr. Michael H. Kyle\nB. Knight Natural Gas Services\nP.O. Box 5702\nMidlothian, VA 23112\nDear Mr. Kyle:\nIn a letter to the Pipeline and Hazardous Materials Safety Administration (PHMSA) dated\nDecember 14,2009, you requested an interpretation or opinion as to whether two specific\ninstallations of gas utilization equipment would meet the intent and requirements of\n49 CFR § 192.197.\nYou provided two actual installations. In Installation 1, the value of outlet pressure could exceed\n1 psig or 28-in water column (wc), and in Installation 2, the value of outlet pressure could\napproach 1 psig (26-in wc). You stated your assumption is that the maximum operating inlet\npressure allowed for most residential installations is limited to 12 psi (14-in wc) and that\npressures in excess of 1 psi (28-in wc) are likely to cause damage to the appliance regulator.\nFirst, you asked whether the bolded words in the following two subsections of § 192.197 have\nthe same meaning: in § 192. 197(a)(5), \" ... to prevent a pressure that would cause unsafe\noperation ofany connected andproperly adjusted gas utilization equipment\" and in\n§ 192.l97(c)(3),\"... set to open so that the pressure ofgas going to the customer does not exceed\na maximum safe value.\" The answer is that they do not have the exact same meaning. The\nphrase \"unsafe operation\" in § 192.197(a)(5) addresses both upper and lower pressure limits and\nmeans that the connection should regulate pressure so that it is neither so high as to create\nexcessively high pilot light flames nor so low that the pilot light could extinguish and create the\npossibility of gas accumulation. The phrase \"exceed a maximum safe value\" in § 192.197( c )(3)\naddresses only the upper limit or high pressure.\nSecond, you asked what inlet pressure does § 192.197(a)(5) or § 192.197( c )(3) refer to?\nRegarding the limit for inlet pressure, § 192.197 is a design requirement under Subpart DDesign\nof Pipeline Components. The design requirements under Subpart D apply to the design\nofpipeline system or components to operate under conditions that are known or reasonably\nforeseeable at the time of installation. Therefore, § 192.197 does not prescribe a specific value\nas long as the inlet pressure does not cause damage to the appliance's regulator.\nThe Pipeline and Hazardous Materials Safety Administration, Office of Pipeline Safety provides written clarifications of the Regulations (49 CFR\nParts 190-199) in the form of interpretation letters, These letters reflect the agency's current application of the regulations to the specific facts\npresented by the person requesting the clarification, Interpretations do not create legally-enforceable rights or obligations and are provided to\nhelp the public understand how to comply with the regulations,\n\n<<>>\n\n2\nFinally, you asked whether your recommendations in both installations are valid and meet the\nintent of § 192.197. Again, § 192.197 does not specify a specific value as long as the inlet\npressure does not lead to unsafe conditions or cause damage to the gas utilization equipment or\nassociated regulators.\nI hope that this information is helpful to you. If I can be of further assistance, please contact me\nat 202-366-4046.\nSincerely,\nae\nDirector, Office of Standards\nand Rulemaking\nThe Pipeline and Hazardous Materials Safety Administration, Office of Pipeline Safety provides written clarifications of the Regulations\n(49 CFR Parts 190-199) in the fonn of interpretation letters. These letters reflect the agency's current application of the regulations to the\nspecific facts presented by the person requesting the clarification. Interpretations do not create legally-enforceable rights or obligations and\nare provided to help the public understand how to comply with the regulations.\n\n<<>>\n\nRequester IMr. 'I' Ml~.hall.KyJe~......; .....~............; ...~ ~'.' .........: ~ ....~,..: : ........:,;......Date ReceiVed:'116/2()10;', \"\" ,' ,\nB, ,:.Knigtlt.NatulaLGa....S . e . r.i.ltJ. a ; ...: ~; ' .~~:. : ..: = .:;; ~. ~:: ...~..:~ ..\n\"\n\"\" ' Tr~~kit1g N~~be~~PHPO~-(jo;6'; ,:·\" . \" ','\nP.O'..BOX..$.1:0.2.:..:. ........~.,. .., ..: .......; ...: .~;. : ......; ......., ....: ; ..: ....; .....~.....,....:.. ,'\n' Revision Date: 1/6/2010 ' ':.\"\nMjd.l. o.tb. la.n...Y.A...23t1.2;; ............~ :................:;...........,................;.\n\"\n~ .. ',. .\n'\"\n.,\n',.;. : '\nPhone B . O'4:r: 4.:to. i2.......:~ ..:u ...~.;............: ...: ..~ .....;.;.........;;...:;;::: .....::......: ..... ' :.•' '\" .; ', .\n' ;' •• ' ,>\n,~:\" :::==:.....-~........--.;..---~...;-.~.-.....~~===-~~~~~\n,\nDate Assigned 1/.6.l20.1.o... , ...\n_\n... PHP Date of Request . 1.21. 1.8l20.1.o...\nStaff /Asebe I First Draft Due: 1/27/201 0 \n ;'.::'-:. ..: .. '\nSection 192.197 First Draft Date: ..............\n\"\n.., ;: , .:; ~t ..•;..:;. \"\n\"':' '.':\nSubject /Whether two specific installations would meetl\n. ; :'\" .~ \" .\n' 0:. ,:\". :.\n' . . \".\nConcurrence\n......;~ .. ;.~~ ...~ .~.~ ..~ .... .' :. . ­ '\" ,-. \", {~\n'\n. . ~ . :.. ;..\nStatus IPHP-30\n'31 atus Date\n-\n. ~~.~ ~ ....... ~ ......~ \"..~ ' ......\n.......~ . .: , \"\n:, .\nign/Close Date Signor ......,. ..... .............. ......;........:06 ••\n.... .\n_\nCopy to Docket 0\n:.. 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' . ~'.' : ~. .' .\n,.: ,. .\n\". ::-:\n:,. .\n, )\n:. ,\n\n<<>>\n\nMichael H. Kyle\nB. Knight Natural Gas Services\nP.O. Box 5702\nMidlothian, Virginia 23112\nPhone: (804) 744-1092\nCe\"ular: (804) 928-5167 DEC 18 2009\nFax: (804) 744-2774\nDecember 14, 2009\nJeffrey D. Wiese\nAssociate Administrator of Pipeline Safety\nU.S. Department of Transportation\nPipeline and Hazardous Materials Safety Administration\n1200 New Jersey Ave., SE\nEast Building 2nd Floor, Mail Stop: E24-455\nWashington, DC\n20590\nDear Mr. Wiese,\nWe would like to get an interpretation or an opinion as to whether two specific installations\nwould meet the intent and requirement of Title 49, Part 192.197. We would also like to get your\nopinion about the meaning oftwo passages in this section.\nIn 192.197 (a)(5) where is states, \"to prevent a pressure that would cause unsafe operation of any\nconnected and properly adjusted gas utilization equipment.\" and in 192.197(c)(3) where it states,\n\"set to open so that the pressure of gas going to the customer does not exceed a maximum safe\nvalue,\" does the wording essentially have the same meaning or does each passage refer to some\nother different value? In other words, is the point where unsafe operation and exceeding the\nmaximum safe value, the same value? If we assume that this would be at a point at where\ndamage could occur to any appliance regulator, would that be a correct assumption?\nIn the following two installations, we will provide the actual as found conditions including type\nof equipment. The only assumption we have made is that the type and typical characteristics of\nthe appliance regulators meets the same requirements as for a Maxitrol appliance regulator. Some\nproprietary controls with built in regulators may have higher or lower maximum pressure\nrestrictions. To arrive at realistic values of load for each installation, we used the load factors as\nprovided by NFPA 54 (ANSI Z223.1) which approximates the actual conditions in type and size.\nIn accordance with Maxitrol Bulletin MI2010-6/05, all of the rated regulators have an lAS Rated\ninlet pressure as established by ANSI standard Z21.18, of'l2 psi (14 in. w.c.). However, a\nminority ofthe appliance regulators are rated by Maxitrol at a maximum of 1 psi (28 in. w.c.) and\none at a maximum of 5 psi (140 in. w.c.). Generally, none ofthese higher rated regulators would\nhave the characteristics ofregulators used with residential gas fired equipment however. It is also\n\n<<>>\n\nMichael H. Kyle\nB. Knight Natural Gas Services\nP.O. Box 5702\nMidlothian, Virginia 23112\nPhone: (804) 744-1092\nCellular: (804) 928-5167\nFax: (804) 744-2774\nstated that, The maximum Operating Inlet Pressures are tested in excess of theses standards, and\nrecommended by us. For this class of appliance regulators, this value of Maximum Operating\nInlet Pressure (MOIP) is the same value as the IAS rating. Maxitrol also states in paragraph 5 of\nthe bulletin that, \"Very high pressure surges in the gas supply line (or as a result of exposing the\nsystem to high pressure) may result in serious internal damage and cause leakage or affect\nregulator operation. If you suspect that a Maxitrol regulator has been exposed to more than twice\nthe maximum operating inlet pressure, as shown in the following chart, tum off the gas and have\nthe system checked by an expert.\" The chart simply refers to the values as stated earlier.\nWe assume from that statement by Maxitrol and referring to their table in their bulletin, that the\nmaximum operating inlet pressure allowed for most residential installations is limited to Yz psi\n(14 in. w.c.) and that pressures in excess of 1 psi (28 in. w.c.) are likely to cause damage to the\nappliance regulator. The question then becomes, at what value does 192.197 (a)(5) or\n192. 197(c)(3) refer to? Would it be anything above Yz psi (14 in. w.c), 1 psi, or some other value.\nThe following information is drawn from actual installations:\nInstallation 1- Single Service Regulator\nPremise Type: Single apartment\nMaximum Load: 160,000 BtulHr. or 160 cu. ft.lHr.\nInlet pressure to service regulator: 92 to 98 psig (Supplier's stated average is 94 psi g)\nOutlet pressure set-point of service regulator: 7\" w.c., or 0.25 psig (standard pressure)\nService Regulator Data\nManufacturer: American\nType: 1213B\nConnection Size: 1 II xl\"\nOrifice: 1/8\"\nNominal Capacity: @5 psig inlet = 200 SCFH\n@60 psig inlet = 800 SCFH\n@ 1 00 psig inlet = 1400 SCFH\nApproximate Relief Valve Performance: (Note: data provided represents outlet pressure\nrelative to inlet in worst case condition) @5 psig inlet = 19 in. w.c.\n@60 psig inlet = 27 in. w.c.\n@ 100 psig inlet = 31 in. w.c.\nData Source: American Meter Bulletin, SB-8506.4\n\n<<>>\n\nMichael H. Kyle\nB. Knight Natural Gas Services\nP.O. Box 5702\nMidlothian, Virginia 23112\nPhone: (804) 744-1092\nCellular: (804) 928-5167\nFax: (804) 744-2774\nInstallation 2- Single Service Regulator\nPremise Type: Single apartment\nMaximum Load: 160,000 Btu/Hr. or 160 cu. ft.lHr.\nInlet pressure to service regulator: 92 to 98 psig (Supplier's stated average is 94 psig)\nOutlet pressure set-point of service regulator: 7\" w.c., or 0.25 psig (standard pressure)\nService Regulator Data\nManufacturer: Equimeter\nType: 143-1\nConnection Size: 1\" xl\"\nOrifice: 1/8\"\nNominal Capacity: @5 psig inlet = 250 SCFH\n@60 psig inlet = 1200 SCFH\n@80 psig inlet = 1540 SCFH\nApproximate Relief Valve Performance: (Note: data provided represents outlet pressure\nrelative to inlet in worst case condition) @5 psig inlet =19 in. w.c.\n@60 psig inlet = 20 in. w.c.\n@ 80 psig inlet = 22 in. w.c.\n@1 00 psig inlet = 27 in. w.c.\nData Source: Sensus Metering Systems, TD-1301\nThe approximate relief valve performance is based the work case condition for a new regulator\nand does not take in to account any blockage ofthe relieve opening over time nor other\nconditions which might preclude degradation ofthe relief valve performance.\nInstallation 1 clearly shows that under worst case conditions, the value of outlet pressure could\nexceed 28 in. W.c. which is above the maximum safe value as stated by Maxitrol. In Installation\n2, the value of outlet pressure under worst case conditions could approach 26 in. w.c which\nwould be below the maximum safe value as stated by Maxitrol but well above the MOIP.\nIn your opinion, do these installations meet the requirements or intent of the regulations?\nOur recommendations in both installations, since they already had the smallest orifice available,\nwere to install an appropriate field cut regulator with integral relief valve ahead ofthe service\nregulator in order to reduce the inlet pressure to as Iowa value of inlet pressure to the service\n\n<<>>\n\nMichael H. Kyle\nB. Knight Natural Gas Services\nP.O. Box 5702\nMidlothian, Virginia 23112\nPhone: (804) 744-1092\nCellular: (804) 928-5167\nFax: (804) 744-2774\nregulator as possible and still have the required capacity. Our train of thought on this was to\ninsure as great a degree of safety as possible and stay within industry practices.\nIn your opinion, would this be a valid recommendation?\nWe certainly appreciate the time and effort on your part and that of your staff in answering our\nquestions.\nSincerely,\nB. Knight Natural Gas Services\nMichael H. Kyle\nEnclosures (3): Sensus Metering Systems. TD-1301\nAmerican Meter Company, SB-8506.4\nMaxitrol, Bulletin MI2011-9/00\n\n<<>>\n\nSB-8506.4\n1213B2 Service Regulators\nMaximum Inlet Pressure 125 PSIG\nAMERICAN\nMETER COMPANY\nAMC Quality System\nQMI is Accredited by:\nAMERICAN\nMETER COMPANY\nCert.tcate #006697\nISO 9001 Certified\ntor Accreditason\nDutch Counce\nMeasurement Engineers Since 1836\nwww.americanmeter.com\n\n<<>>\n\n121382 Service Regulators\nGeneral Information\nThe American Meter Series 121382 pressure regulator is\ndesigned for natural gas applications and features a compact,\nlightweight design for fast, easy installation. Interchangeable\norifices and springs provide a wide range of outlet pressures\nand flow rates. Outlet pressures between 3.5\" W.C. and 5 PSIG\nare available. Operating temperature range is -20' F to 150' F\n(-30' C to 65' C). Maximum flow rate is 2500 SCFH (70.8 m'Ih).\nThe diaphragm case may be easily removed for routine\ninspection without disturbing the line connections. All models\nconform to ANSI Code 8109.4-1998, and CGA Service-type\nRegulator Specification CAN/CGA-6.18-M9S.\nExclusive, 7 - Step Corrosion\nProtection\nThe protective finish on the 121382 regulator resists corrosive\neffects of weather and harsh environments better than any\nother in the industry. Each precision die cast aluminum\nregulator is treated-inside and out-with a special conversion\ncoating that's part of an exclusive, 7-step finishing process.\nThis coating greatly inhibits oxidation of the metal's surface that\ncan eventually compromise the integrity of the metal. It also\nprevents finish paint from cracking and blistering.\nA single coat. polyester primer and the high solid polyurethane\ntop coat provides a long-lasting protection to all exterior\nregulator surfaces. The American Meter conversion coating\nprocess meets all environmental protection regulations.\nHigh Tensile Strength Valve Bodies\nEach 121382 regulator is equipped with a high tensile strength\ncast iron valve body that rotates in 90-degree increments and\nfeatures extra heavy wall thickness. This provides maximum\nstrength to withstand installation stresses without damage and\nprevents thread galling experienced with aluminum.\n121382 regulator valve bodies are treated with a S-step metal\nfinishing process. The treated metal is painted with a single\ncoat polyester paint.\nAvailable valve body sizes are: 3/4\" x 3/4\", 3/4\" x 1\" and\n1\" x 1\" NPT or 8SP-TR for 180' valve bodys. Also available is\na 90' valve body in 3/4\" x 3/4\",3/4\" xi\", 1\" x 1\" and 1/2\" xi\"\nNPT and 3/4\" x 3/4\" 8SP-TR.\nFeatures\nIn response to a market survey, the following features were\ndesigned into the 121382 regulator to accommodate the\ncustomers needs.\n• Improved relief performance.\n• Improved performance repeatability.\n• Lever design provides for secondary emergency\nrelief in the event of unauthorized removal of the\nseal plug.\n• Snap-in internal components (quick change outs).\n• Non-adjustable relief.\n• Larger seat disc area.\n• 12138 and 121382 use the same seal plug to avoid\nloss of emergency relief should the seal plugs be\ninterchanged.\nApplication\nThe 121382 features a full capacity internal relief valve with\nlarge passages to assure the fast release of gas (See\nperformance graphs on page 5). For added protection, a\nsecondary relief valve stop is provided to assure operation\nunder the most severe conditions and in the event the seal plug\nhas been removed. The standard relief spring setting is 8.0·\nW.C. above the normal 7\" WC. outlet pressure.\nValve body configuration permits the 121382 regulator to be\nsupplied in four positions as specified on page 7. All 121382\nregulators are available with either right angle (90-degree) or\nstraight flow (i80-degree) valve bodies. Vents can also be supplied\nin four different positions.\nThe 121382 regulator is designed with an extra large, removable\nweather and bug-proof stainless steel screened vent to resist\nfreeze-ups and to exclude foreign matter. The vent is threaded\n3/4 inch NPT making it suitable for indoor installations.\nCD AC250 Aluminumcase Meter; @ 121382 Regulator;\n2\n\n<<>>\n\n121382 Service Regulators\nOptions\nMeter Bar- The 121382 regulator can be used with a\ndetachable meter bar 3/4\" x 3/4· (Part number 72476G001),\n3/4\" x 1\" (Part number 72476G003) and 1\" x 1\" (Part number\n72476G004) for compact and convenient installation to meters\nwith 6\" connection centers. Use of a meter bar prevents piping\nstress from being transferred to the gas meter.\nVent Elbow- The regulator vent opening should face downward\n(6 o'clock) to minimize the chance of blockage from ice and\nsnow. If not, a 3/4\" NPT plastic. 900 vent elbow (Part number\n78041 P025) and separate protective screen (Part number\n70400P017) may be screwed into the vent to provide the\nnecessary protection.\nElevation Compensation- E.C. orifices are also available.\nwhich provide constant outlet pressure even when inlet\npressure fluctuates greatly. The elevation compensation orifice\nis a device which reduces changes in regulator outlet pressure\ndue to change in inlet pressure.\nThe E.C. orifice is recommended for installations where the\ninlet pressure may vary over a wide range. The E.C. orifice is\navailable in two sizes: 1/8\" x 3/16\" (Part number 73698G006)\nand 3/16\"(Part number 73698GOO5). Its capacity is the same as\na standard orifice of the same size. Consult your American\nMeter Sales Representative for specific applications.\n~--------5·--------~\nI-- 2-25132\"\n4-9116\"\nModel 121382-900\n5-5116\" --------~\n~--------5·--------~\nModel 121382-1800\n3\n\n<<>>\n\n, 121382 Service Regulators\n121382 Regulator Capacity Performance\nCapacity 3/4\" Outlet 121382 Regulator\nSet Point 7.0\" W.C. @ 50 SCFH\nSCFH 0.60 specific gravity gas @ 60· F & 14.7 PSIA. Pressure spring\n70017P084. Outlet pressure variance not to exceed +2\" ·1\" W.C. from\nset point, horizontal poSition.\n[ > kMt OdkeSia\nI '. CPSIG} 111 3111 114 5111\n\" t 175 225 225\n2 225 400 375\n, 175 275 450 500\n5­ 200 350 650 700\nto 300 600 950 1100\nIS 325 800 1100 1400\n21 475 1100 1400 1800\nas 600 1400 2200 2500\nSO 700 1800 2200\n10 700 2100 2200\n75­ 750 2200\n100 1100 2200\n121 1100 For OPtimum psrlormanctJ, rrIaXJI'f'IUITI inJel\npnIUUf1I should 001 ~maxim.Jm capacity\nrating for any giv9n orrfic6 Sf.Z~\nCapacity 3/4\" Outlet 121382 Regulator\nSet Point 2 PSIG @ 50 SCFH\nSCFH 0.60 specific gravity gas @ 60· F & 14.7 PSIA. Pressure spring\n70017P085. Outlet pressure variance not to exceed +/- 10% from set\npoint, horizontal position.\n·:. 1nIII OriIIceSia\n' (PSIG) 111 3111 114 5111\n, 75 100 150 150\nS 125 175 225 250\nI 10 175 250 350 375\n· ,,15 225 350 475 500\nU 325 475 650 750\n. Sf 350 600 850 1000\nSO 475 700 1100 1200\n10 600 850 1200 1400\n· 75 700 1000 1400 1800\n. 100 900 1300\n'121 1000 For optimum pe;1ormancs_ maxImUm ,n/9!\n(J(8SSU1'S should not a.rc86d m.u~Jm capaary\nrafll19 foI any gt~ orrf1C8 sa• .\n4\nCapacity 1\" Outlet 121382 Regulator\nSet Point 7.0\" W.C. @ 50 SCFH\nSCFH 0.60 specific gravity gas @ 60' F & 14.7 PSIA. Pressure spring\n70017P084. Outiet pressure variance not to exceed +2\" ·1\" W.C. from\nset point, horizontal position.\n.' InIII OrIIceb ,\n,(PSIG) 111 3111 114 511.\n1 175 225 225\n2 225 400 375\nS 175 275 475 500\n5 200 350 650 750\n10 300 600 1000 1200\n15 350 800 1400 1600\n2S 475 1100 2000 2500\n35 600 1400 2500 2500\n60 700 1800 2500 2500\n10 800 2100 2500 2500\n7S 900 2500 2500\n100 1400 2500\n12. 1600 For optImum pe.rfOrmance. tnaXlfflum inl81\npre541.Jl9 5houJd nO! exr:Hd maxlfTltim C8paci~\nratJng /0( any gMm onfic8 SJZ9.\nCapacity 1\" Outlet 121382 Regulator\nSet Point 2 PSIG @ 50 SCFH\nSCFH 0.60 specific gravity gas @ 60' F & 14.7 PSIA. Pressure spring\n70017P085. Oullet pressure variance not to exceed +/. 10% from set\npoint, horizontal position.\nInIII OItIk:ab\n(PSIGl 111 SIt. 114 511.\nS 75 125 150 150\n5­ 125 175 225 250\n10 175 250 325 375\n\" 225 325 400 400\n25 300 425 600 600\nU 375 500 750 900\n50 475 700 1000 1100\nfiO 550 800 1100 1200\n.75 650 1000 1400 1400\n100 1000 1400\n12. 1000 For optimum perlcxmance. maximum rnJet\npressure ShoUld nor fJxcHd maximom C8paC1ty\nrarll\"lg for any grven ordice SJZ(J.\n\n<<>>\n\n121382 Service Regulators\n121382 Regulator Relief Valve Performance\nThere are several methods of measuring the relief performance of a regulator. For the 121382 service regulator, the worst case\nscenario will occur when the lever is disconnected. The data presented in the tables below represent this condition.\nOutlet Pressure Relative To Inlet Pressure 3/4\" Screened Vent - No Vent Pipe Set Pressure 7\" W.C. Outlet Pressure Relative To Inlet Pressure\n3/4' Screened Vent - 10 Foot Vent Pipe with 2 Elbows\nSet Pressure 7\" W.C.\n90\n70\nI~ I I~\n1 I .~~\nI I / ~\n.'\nrt -- -7'-- -- - -- ---\n/\n1/\nJ\n, V ,\nI\nift.\n~\n~\n10\no\no 10 20 30 40 50 60 70 80 90 100 110 120 130\nInlet PreSsure - PSIG\n90\n70\nci\nJI~ J '$ J .~\nI / / \"\nj\n.\".' I V \"\n.. '\n/\n~ \",60\n..\n.c\nu\n- - -ff­-\n- '-L\n\"\"ii8'f' V\n~50\nJ l/ lr;jjj-\n!\n\"\n\"\nJ /\n,\n/' :-\n/ ./ ~\n/ V ­ , J V\n'.-\"\n~\n\" ! \"40\na.\n130\nr.---/---- ---\n:;\n#- + - ? ~- r--­ - - -\no\n20\n,/' ---10\no\nOutlet Pressure Relative To Inlet Pressure\n3/4\" Screened Vent - No Vent Pipe\nSet Pressure 2 PSIG\n9 / II'5iW\n~\n8\n9\n8\n7\n/ 7 7\nI /\nV\nCl\nCl 6\n(i)\n6 (i)\na.\n,\n! 5\nV V k-\"\" §: 6 ~\na.\n,\ne 5\n~\n'\" ~\n..\n! 4\n! 4\na.\na.\n1\n~2::\na;\n:; /;\n0\n3 0\n, ~~\n~ 3\n~\n2\n2\no\nI ,. .\no\no 10 20 30 40 50 60 70 80 90 100 110 120 130\nInlet Pressure - PSIG\no\n10 20 30 40 50 60 70 80 90 100 110 120 130\nInlet Pressure - PSIG\nOutlet Pressure Relative To Inlet Pressure\n3/4\" Screened Vent · 10 Foot Vent Pipe with 2 Elbows\nSet Pressure 2 PSIG\nJ 'e / r$\nL /\nJ J V ~\n:','\n.'\n/ / / ~\n./\n. I / V\n\",...,. ~ ~\nV\n,\n~ ~ ~. ;L.\n;io\"\" V\n~ -­~\n-­~\n~\n-\n,.\n,\no 10 20 30 40 50 60 70 80 90 100 110 120 130\nInlet Pressure - PSIG\n5\n\n<<>>\n\nf 121382 Service Regulators\nPressure Springs Maximum Recommended Inlet Pressure\nOutlet Pressure Color Code Part Number\n121382\nOrifice Size Inlet Pressure\n(PSIG)\n3.5' to 7' W.C. Light Blue 70017P083\n1/8\" 125\n5\" to 9\" W.C. Lavender 70017P084\n3/16' 125\n6\" to 15\" W.C. Light Gray 70017P088\n1/4\" 125\n18\" to 2 PSIG Light Green 70017P085\n5/16' 100\n2 to 4 PSIG Pink 70017P086\n4 to 5 PSIG Turquoise 70017P087\nOrifice Sizes\nOrifice Size Part Number\n121382\n5/16\" 72494P022\n1/4' 72494P043\n3/16' 72494P042\n1/8\" 72494P040\nFull Open Regulator Relief Capacity\nFor sizing downstream relief valves, use Key:\nthe following formulas to determine the Q Maximum capacity of regulator\nregulator full open capacity: C Orifice constant, see table\nP, Inlet absolute pressure (PSIA)\nFor critical flow rates For sub-critical flows P2 = Outlet absolute pressure (PSIA)\nh = Differential pressure (P1 - P2)\nQ = 0.5 C x vG Q=C- · P, \\Pzh G = Specific gravity of gas\nVG\nOrifice C\n1/8\" 20\n3/16\" 46\n1/4\" 80\n5/16' 150\n6\n\n<<>>\n\n121382 Service Regulators\nRegulator Assembly Positions\nFor 900 Models\nValve Body Poaltlon • A· P.6.gulator Assembly Positions\nFor 1800 Models\nValve Body Position • A\" S~\"'fli\"A Pc. ~\nValve Body Position ·C\"\nValve Body Position \"B·\nValve Body Position \"0\"\nValve Body Position \"B\"\n7\n\n<<>>\n\n12J~B2 Service Regulators\nConstruction\nLower Diaphragm Case - Precision die cast aluminum with a\nexclusive 7 -step advanced conversion coating. single coat\npolyester primer and High Solid Polyurethane Top Coat.\nTop Assembly - Precision die cast aluminum with a exclusive\n7-step advanced conversion coating. single coat polyester\nprimer and High Solid Polyurethane Top Coat.\nValve Body. Cast grey iron. undercoated. single coat polyester\nprimer and High Solid Polyurethane Top Coat. (Rotates\nin 90 degree increments).\nPressure Spring· Steel. Zinc plated and yellow chromate.\nColor coded for identification.\nDiaphragm Plate - Steel. terne plated.\nSeat Disc· Buna-N.\nOrifice - Super high strength. corrosion-resistant, aluminum.\nLever - Stamped aluminum.\nVent Screen - Stainless steel.\nSeal Plug - Ultraviolet ~t. abilized. minion.\nCorrosion Protection\nOrdering Information\n1 Model number.\n2 Size of inlet and outlet.\n3 Inlet pressure, psi.\n4 Outlet pressure. inches W.C. (or PSIG).\n5 Flow. scfh.\n6 Kind and specific gravity of gas.\n7 Orifice size.\n8 Regulator assembly position number.\n9 Possible variation in inlet pressure\nfor E.C. Orifice models.\nMaximum PSIG\nMin imum PSIG\nShipping Weight28\nIbslcarton of eight regulators\nRegulator Pressure Rating\n125 PSIG =Maximum recommended inlet pressure for normal service.\nMaximum recommended pressure may vary with orifice size.\n175 PSIG = Maximum inlet pressure for abnormal or emergency service. without\ncausing damage to regulator case.\n5 PSIG = Maximum outlet pressure for normal service.\n10 PSIG = Maximum outlet pressure which can be contained by pressure carrying\ncomponents (no flange leakage to atmosphere except for normal relief action).\nIf regulator Is subjected to these conditions, it should be removed from service.\n50 PSIG = Maximum outlet pressure for abnormal service without damage to\ninternal components. If regulator Is subjected to these conditions, it should be\nremoved from service.\nDue to continuous development the Information In this document Is subject to change.\nAMERICAN METER\n300 Welsh Road, Building One. Horsham, PA 19044·2234. USA. Tel: (21 5) 830-1 800. Fax: (21 5) 830-1 890\nCANADIAN METER\n3037 Oerry Road, West. ),1IIIon, Ontario L9T 2X6. Canada . Tel: (!}OS) 878·2361 . Fax: (905) 878-5758\nE!..5TE' ·\n. AMCO\n8\nPS/2500103-01 FP 02-96\n\n<<>>\n\nTD-1301\nSensus Metering Systems\nModel 143-80 Service Regulator\nModels:\n143-80-1\n143-80-2\n143-80-2HP\nl' x l '\nl ' xl-1 /4\"\nValve Body: Cast Iron, 125 psig Working Pressure Straight Body\nSpring and lower Case: Die-Cast Aluminum 3/4' x 3/4'\nOrifice: Stainless Steel 3/4\" x l '\nFulcrum Pin: Aluminum or Brass 3!4' x1 -114\"\nValve Seat/Stem: One piece molded Buna-N seat pad and fiberglass reinforced nylon stem\nThroat/Support/Stem Guide: Cast Aluminum\nintegral to lower case\nOiaphragm Plate: Plated Steel 1-1 /4' x1-114'\nDiaphragm: Nylon fabric reinforced Buna-N with full 26 in2effective area\nVent and Valve: Precision-fit polyethylene valve and seat, threaded 3/4' or l ' NPT\nOperating Temperature: -200\nFto 1500 F(-28.90 Cto 65.50 C)\nCorrosion Protection: Cases dip primed chromate conversion coating, topcoat enamel\nInternal Relief Valve: Set to relieve at approximately 7\" w.c. above normal outlet pressure setting\nSpring Ranges\nOutlet Pressure Spring\nRanges Color\n3'1,\" to 6'1,\" w.c . Red\n, Orifice and MaXimum Inlet Pressure\nSpring Orifice Part Number Pressure\nPart Number 'Ie ' aluminum 143-62-023-37 125 psig\n143-62-021-15 3;:, aluminum 143-63-023-40 125 psig\n143-62-021-16 'I.' aluminum 143-62-023-42 60 psig\n143-62-021-17 v,.. aluminum 143-62-023-43 40 psig\n143-62-021-18 '1,' aluminum 143-62-023-44 40 psig\n143-62-021-22 '1,' aluminum 143-62-023-45 20 psig\n173-62-021-02 Ye ' aluminum 143-62-023-46 10 pSig\n139-16-021-01\nRelief Valve Performance: lever blocked with valve disc in the Wide open position\n5' to 8'1,' w.C. Blue\n6\" to 14' w.c. Green\n12' to 28' w.c. Orange\n'I, psi to 2 psi Black & White\nY, psi to 3 psi Cadmium'\n2 to 6 psi Black'\n'For high pressure model 143-80-2HP\ni. 2 ...............I-'--t'-'-;----/-c-'--:.....,......-,--'-7-'T-H\n~ i11t\n... j1~ 1-'-+--/~4---'--;--,--~4-r-'---'--'-\nl 1 ~ 1 J---,f.+-~-'-'-+::;......,.--,-,_-~-i---=I\ni ~\ni ~ ~~----;--;-,~-=:----'-'-l\n~\n.~~------~~~----~--~ 51 68 11 so 9t 1.\n• 1. 21 30 41\nIIILET PII£SSIIIIE -w l1li\nMaximum Emergency Pressure\nThe maximum pressure that the model 143-80-1 , 143-80-2\nand 143-80-2HP regulator inlets may be subjected under abnormal\nconditions without causing damage to the regulator is the stated\nMaximum Inlet Pressure + 50 psi\nNote: For the Low Pressure Cut Off version model 143-80-6 it is\nMaximum Inlet Pressure + 10 psi. See bulletin TD-1301-L\nThe maximum pressure to which the 143-80 diaphragm case may\nbe subjected under abnormal conditions without causing damage\nto the internal parts of the regulator is the set point + 3 pSi.\nIf the outlet pressure exceeds this pressure. the regulator must\nbe removed from service and carefully inspected. Damaged or\notherwise unsatisfactory parts must be replaced before returning\nthe regulator to service . The maximum outlet pressure that can\nbe safely contained in the 143-80 diaphragm case is 10 psi\n(safely means no leakage as well as no bursting).\nFull Open Capacity\nUse the following formula for the full open capacity:\n1. Q = K-/ P 0 (Pr - Po) ... . (for f less than 1.894)\no\n2. Q =¥'-........ ......... .(fOr~ greater than 1.894)\nQ =maximum capacity of the regulator\n(in SCFH of 0.6 specific gravity natural gas).\nK = the \"K\" factor, the regulator constant from the lable below.\nP =absolute inlet pressure (psia).\nP , = absolute outlet pressure (psia).\nOrifice %\" Yz\" %\" 0/16· Yc. 0/16· Va\"\nK 820 520 292 206 132 74 33\n~seNSUS\n:::,/ METERING SYSTEMS\n\n<<>>\n\nInlet Onfice\n'.\nModel 143-80\nTechnical Data\nCapacities Body Size 3W x 3W\nFlow capacities in SCFH natural gas\n(0.6 specific gravity - 14.65 psia - 60°F)\nCapacities are based on the following maximum\nvariations in outlet pressure:\nRed and Blue Springs - 1\" w.c. droop\nOrange Spring - 3\" w.c. droop\nGreen Spring - 2\" w.c. droop\nBlack Spring -10% droop\nNote: The 1/2 psig, 1 psig and 2 psig inlet pressures\napply only to Red and Blue springs.\nNote: The last capacity figure in each column\nindicates the maximum capacity for each\nonfice at recommended pressure within\nthe optimum performance range.\nThe performance data is based on normal testing at\n70°F flowing temperature.\nChanges in performance can occur at extreme low\nflowing temperatures.\nOther Gases\n143-80 Regulators are mainly used on natural gas.\nHowever, they perform equally well on LP gas, nitrogen,\ndry C02, air and others.\nOther Gases Correction Factor\npsig 112 .\n1\n:-,\n2\n3\n5 .\n7.5 10 20 40 ' .. .. 60 so 125 1/8\" -\n3/16\" -\n\"\n-\n- -\n-\n.530\n-\n420\n600\n.\n·250\n560\n. 700\n310 700 840 370 ' 830'< '. 950\n530 1200 1220 860.'\n, ~57(l . . 1330' 1200 1660 1520 1500 . 1710 -\n1800 1900 1W 5/16\" 3/8\" l,'Z· 5/8\"\n. ' . - 340 .'. 450 51&\n480\n500\n510\n530\n'· 560\n570 ·\n5SO\n600\n620\n630\n650\n670\n.720.. ···\n730 ..\nno\n:.· 790\n860 880 900 900\n. 970 1000 ·' I 1020 1020\n1240 1250 1270 -\n· 1340 1450 : . \"'\" -\n- - - -\n. '. - - -\n-.~. , -\n- - -\nBody Size 3/4\" x 1· -1\" x 1\"\nInlet Onfice\nAir (Specific Gravity 1.0) 0.77\nPropane (Specific Gravity 1.53) 0.63\n1350 BTU Propane Ai r Mix (1.20) 0.71\nNitrogen (Specific Gravity 0.97) 0.79\nDry Carbon Dioxide\n(Specific Gravity 1.52) 0.63\npslg 1/8\" 3/16\" 1/4\" 5/16\" 3/8\" 1/2\" 5/8\"\nta.\n\"\n-\n-.'\n' ~ '.'\n- 1. 350 .' 400: 520 •\n1 - - - 480 550 600 650\nt c - - 53{j; : 700:, 840. 880; • 7SO'\n3 - 420 650 870 1000 920 810\n\"5' . : 250 . . 5SO , 89Q: i12(j, 1100 ; 950:, 970\n7.5 310 700 1140 1340 1270 1140 1060\n1e V 371), .\n1 .> .S4{)i t 136>>\n\nBULLETIN MI2011-9/00\nSAFETY WARNING INSTRUCTIONS\nMAXITROL CSA DESIGN CERTIFIED\nGAS PRESSURE REGULATORS\nNOTE: GAS PRESSURE REGULATORS WILL f:!QI\nTURN OFF THE FLOW OF GAS.\nA SPECIAL WARNINGS\nDIRECTIVES DE SECURITE\nREGULATEURS DE PRESSION DE GAZ MAXITROL\nCERTIFIES CSA\nREMARQUE: LES REGULATEURS DE PRESSION DE GAZ\nN'INTERROMPENT PAS L:ECOULEMENT DU GAZ.\nA AVERTISSEMENTS PARTICULIERS\nIFYOU DO NOT FOLLOW THESE INSTRUCTIONS EXACTLY,\nA FIRE OR EXPLOSION MAY RESULT CAUSING PROPERTY\nDAMAGE, PERSONAL INJURY OR LOSS OF LIFE.\nNO UNTRAINED PERSON SHOULD ATIEMPT TO INSTALL,\nMAINTAIN OR SERVICE GAS PRESSURE REGULATORS.\nTo minimize the possibility of FIRE, EXPLOSION, and OTHER HAZARDS:\n1. All products, including gas pressure regulators, used with combustible\ngas must be installed and used strictly in accordance with the instructions\nof the manufacturer, with government codes and regulations, and plumbing\ncodes and practices.\n2. Do not use a gas pressure regulator if it appears to have been subjected\nto high temperatures, damaged in any way, or to have been taken apart or\ntampered with. Any of these may be signs of possible leakage or other\ndamage that may affect proper operation and cause potentially dangerous\ncombustion problems\n3.\na. Install the regulator properly with gas flOWing as indicated by the arrow\non the casting.\nb. Use pipe compound or thread sealant, property threaded pipes and careful\nassembly procedure so that there is no cross threading, etc., which might\ncause damage or leakage.\nc. Apply wrench or vise pressure only to the flat areas around the pipe\ntappings at the end being threaded to the pipe to avoid possible fracture\nof the regulator body which could result in leakage\nd. Make sure markings or wording on regulator are not painted over or\nobliterated .\n4. Check carefully for gas leaks immediately after the regulator has been\ninstalled and the gas turned on. Do this before attempting to operate the\nappliance or other gas burning device. Use a rich soap solution (or other\naccepted leak tester) around the diaphragm flanges, bottom plate, vent\nopening, seal cap, pipe connections, and all other joints. Wipe clean with a\ndamp rag. It is a good practice to periodically check for leakage during use of\nthe appliance. Absolutely no leakage should occur, otherwise there is a\ndanger of fire or explosion depending upon conditions. Never use if\nleakage is detected.\n.ACAUTION\nLA NON-CONFORMITE AUX DIRECTIVES\nQUI SUIVENT PEUT PROVOQUER UN INCENDIE OU UNE EXPLOSION\nQUI PEUT ENDOMMAGER LA PROPRIETE. OU ENCORE\nCAUSER\nDES BLESSURES OU ENTRAINER LA MORT.\nAUCUNE PERSONNE NE POSSEDANT PAS LA FORMATION\nREQUISE NE DEVRAIT TENTER D'INSTALLER, D'ENTRETENIR\nOU DE REPARER DES REGULATEURS DE PRESSION DE GAZ.\nPour r6duire au minimum les risques d'INCENDIE, D'EXPlOSION, ET AUTRES RISOUES:\n1. Tous les produits, y compris les regulateurs de pression de gaz, utilises avec des gaz\ncombustibles dolvent ~tre installes et employes en strlcte conformite avec les directives\ndu fabricant, les codes et reglements gouvemementaux et les codes et pratiques en\nmatiere de plomberle.\n2. Ne pas employer un regulateur de pression de gaz qui semble avoir ete soumis ill des\ntemperatures elevees, endommage de quelque fayen que ca soit, avoir ete de monte ou\nmanipule. Toutes cas situations indiquent des possibilites de fuite ou de tout autre\ndommage qui pourrait nuire au bon fonctionnement de I'appare~ et provoquerdes problemes\nde combustion potentiellement dangereux.\n3.\na. Installer Ie regulateur correctement de sorte que Ie gaz s'ec","truncated":true,"body_characters":51151}