1、IzEm!ElMIL-V-1811OF(SH)19 February 1991SUPERSEDINGMIL-V-1811OE20 March 1978(See 6.10)MILITARY SPECIFICATIONVALVES, GATE TYPE, STEEL(SIZES 2-1/2 INCHES TO 16 INCHES)This specification is approved for use by the Naval Sea Systems Command,Department of the Navy, and is available for use by all Departme
2、nts andAgencies of the Department of Defense.;.1. SCOPE ,.1.1inches to1.2followingSGQEe. This specification covers steel gate valves in sizes 2-1/216 inches for steam, water and oil senices on shipboard.Classification. Valves shall be classified in accordance with thecompositions, ratings and classe
3、s, as specified, (see 6.2).1.2.1 Composition.Composition A:Chromium -MolybdenumComposition B:Chromium -MolybdenumComposition D:Valves shall be”of the following compositions:2-1/4 percent.- 1 percent.1-1/4 percent.- 1/2 percent.Carbon steel.Composition E:Corrosion resistant steel 304 or 316.Beneficia
4、l comments (recommendations, additions, deletions) and any pertinentdata which may be of use in improving this document should be addressed to:Commander, Naval Sea Systems Command, SEl155Z3, Department of the Navy,Washington, DC 20362-5101 by using the self-addressed Standardization DocumentImprovem
5、ent Proposal (DD Form 1426) appearing at the end of this documentor by Ietter.AMSC N/A FSC 4820DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-V-1811OF(SH)1.2.2 Rati
6、ng and class. Unless otherwise specified herein, valves shall be a71constructed and rated in accordance with ANSI B16_.34,as follows:Standard rating:Class 150Class 300Class 400Special rating:Class 600Class 900Class 1500”Class 2500 -Composition E valves shall be of standard rating, classes 150, 300,
7、and 400.2. APPLICABLE DOCUMENTS2.1 Government documents.2.1.1 Specifications. standards. and handbooks. The following specifica-tions, standards, and handbooks form a part of this document to the extentspecified herein. “Unless otherwise specified, the issues of these documents arethose listed in th
8、e issue of the Department of Defense Index of Specifications andStandards (DODISS) and supplement thereto, cited in the solicitation (see 6.2).SPECIFICATIONSFEDERALHH-P-46QQ-S-365PPP-F-320MILITARYMIL-V-3MIL-S-901MIL-F-3541MIL-A-7021MS15003MIL-P-15024MIL-P-15024/5 -MIL-R-17131 -MIL-P-17303 -0Packing;
9、 Asbestos, Sheet, Compressed.Silver Plating, Electrodeposited: GeneralRequirements for.Fiberboard; Corrugated and Solid, Sheet Stock(Container Grade), and Cut Shapes.Valves, Fittings, and Flanges (Except for SystemsIndicated Herein); Packaging of.Shock Tests, H.I. (High-Impact) ShipboardMachinery, E
10、quipment, and Systems, Requirementsfor.Fittings, Lubrication, General Specification for.Asbestos Rubber Compressed Sheet, for Fuel,Lubricant, Coolant, Water and TemperatureResistant Gaskets.Fittings, Lubrication (Hydraulic) Surface Check,1/8 Pipe Threads, Steel, Type III.Plates, Tags and Bands for I
11、dentification ofEquipment.Plates, Identification.Rods and Powders, Welding, Surfacing.Packing Materials, Plastic Metallic and PlasticNonmetallic.2Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-V-1811OF(SH)MILITARY (Continued)MIL-L-19140MIL-G-210
12、32MIL-A-24058MIL-P-24377MIL-P-24503DOD-P-24583.“ DOD-V-24657MIL-G-24696MIL-G-24716STANDARDS MILITARYMIL-STD-L67-1 -a71 MIL-STD-271 -MIL-STD-278 -DOD-STD-2138 -MIL-STD-798 -Lumber and Plyiood, Fire-Retardant Treated.Gaskets, Metallic-Asbestos, Spiral Wound.Asbestos Packing and GasketingMaterial,Impre
13、gnated.Packing Material, Asbestos, Braided, Impregnatedwith PTFE (Polytetrafluoroethylene) , SurfaceLubricated.Packing Material, Graphitic, Corrugated Ribbon orTextured Tape and Preformed Ring.Packing Material, Graphitic, Braided Yarn.(Metric)Valve Actuator, Direct Coupled, Gear DrivenElectrically P
14、owered for Shipboard Propulsion andAuxiliary Systems. (Metric)Gasket, Sheet, Non-Asbestos.Gaskets, Metallic-Flexible Graphite?Spiral Wound.Mechanical Vibrations of Shipboard Equipment (TypeI - Environmental and Type II - InternallyExcited).Requirements for:Nondestructive Testing Methods.Welding and
15、Casting Standard.Metal Sprayed Coating Systems for CorrosionProtection Aboard Naval Ships. (Metric)Nondestructive Testing, Welding,.Quality Control,Material Control and Identification and Hi-ShockTest Requirements for Piping System Components forNaval Shipboard Use.(Unless otherwise indicated, copie
16、s of federal and military specifications,standards, and handbooks are available from the Standardization Documents Order :Desk, Bldg.NameMaterial.,CompositionCompositionCompositionCompositionf.partformABD.E,.Applicabledocuments,.ASTMA216,gradeWCB(UNSJ03002)ASTMA351ASTMA182,gradeF304(UNSS30400)orgrad
17、eF316gradeCF3.,(UNSS31600)(UNSJ92500)ASTMA515grade70(UNSKO31O1)orgradeCF3M.,ASTMA387grades11class2(UNSK11789)or(UNSJ92800).,.“grade22,class.22(UNSK21590)ASTMA240,grade304,-(UNSS30400)or.ASTMA240,grade316;“(UNSS31600)StemBarstockCr-13(seeCr-13(seeCr-13(seeASTMA564alloytableVII)tableVII)tableVII)(UNSS
18、17400)steeltype630BonnetBarstockfasten-alloyASTMA193,ASTMA193,ASTMA193,ersboltssteelgradeB16gradeB7gradeB7and,studs(UNSK14072)(UNSH41400)(UNSK14072)orgradeB16.(UNSK14072)BonnetASTMA194,ASTMA194,ASTMA194,nutsgrade4or7grade2HgradeB7(UNSK1451O)(UNSK04002)(UNSK14072)orgrade4(UNSK1451O)Seefootnotesatendo
19、ftable,I-J Cn P F o q u-l xProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TABLE1.Listofmaterials/-Continued.cmNameMaterialCompositionCompositionCompositionCompositionofpartformABDEApplicabledocumentsStandardLowcarbonpressuresteel,sealsilverCommercia
20、lringsandplatedstandard oversized pressure seal ringsGasketsSpiralwoundMIL-G-24716,typeI(for flangedCompressedMIL-G-24696bonnets)sheetPackingGraphiticMIL-P-24503,DOD-P-24583NutsMaterialsusedinconstructionofthe,separtsotherthanspecifiedboltsaboveshallbeinaccordancewiththematerialspecificationsshownwa
21、shers,onthecontractorsdrawings(see6.3andappendixA).bushings, liners Valve(seetableVII)trim TableIcontainsthecommercialandmilitaryspecificationsandstandards,andinaddition,containsthecorrespondingSAEHSJ1086UnifiedNumberingSystem(UNS)designation.ReferencetoaspecificUNSdesignationwillpermittheuseofanyon
22、eofthe.manyalloyspecificationsandstandardslistedinSAEHSJ1086forthatUNSnumber.Bonnets,yokeandseatringforcompositionDvalvesmaybeinaccordancewithASTMA217,gradeWC6orASTMA182,gradeF1l.a71o90-m=._.,.L,.,.,.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MI
23、L-V-1811OF(SH)a713.3.1: Recovered materials. Unless otherwise specified herein, all -equipment, material, and articles incorporated in the “products,covered by thisspecification shall be new and may be fabricated using materials produced fromrecovered materials to the maximum extent practicable with
24、out jeopardizing theintended use. The term “recovered materials” means materials which have beencollected or recovered from solid waste and reprocessed to become a source of rawmaterials, as opposed to virgin raw materials. None of the above shall beinterpreted to mean that the use of used or rebuil
25、t products is allowed under thisspecification unless otherwise specifically specified.3.4 Construction. Unless otherwise specified herein, valves, valve partsand construction features and parameters shall “conform to ANSI B16.34 (see 6.3 andappendix B).3.4.1 Pressure temperature ratins. The design a
26、nd pressure temperaturerating shall be in accordance with ANSI B16.34, except the maximum allowabletemperature for composition D shall be 775 degrees Fahrenheit (“F). Pressure sealvalve shall be constructed in such a manner as to permit repair bythe use ofoversize ringsANSIbuttwitha71with3.4.2 End c
27、onnections. End connections shall be inaccordance withB16.34, flanged, socket welded or butt welded for the standard valves andwelded only for the special valves. Butt welding ends shall be compatiblethe appropriate pipe schedule end preparation (see 6.2).3.4.3 Flanges. Flanged end valves shall have
28、 flanges that are compatiblethe corresponding mating flange for face preparation, number and size ofbolts holes and pressure rating (see 6.2).3.4.4 Drains and bv-Dasses. When specified (see 6,2), a drain or by-passshall be furnished and located as specified in 3.4.4.1 through 3.4.4.5 andANSI B16.34.
29、 A drain shall consist of anipple and drain valve. A by-pass shallconsist of connecting lines and a by-pass valve.3.4.4.1 Size Standard drain and by-pass sizes shall be as shown in table.II. Nonstandard sizes shall be as specified (see 6.2).TABLE II. Standard drain and bv-Dass sizes.Valve Size of Si
30、ze ofsize by-pass bonnet(inches) and (inch) drain (inch)2-1/2 .1/2 1/43 1/2 1/44 1/2 1/45 3/4 , /46 3/4 1/48 3/4 1/410 1 1/412 1 1/414 1 1/416 1 1/49Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-V-1811OF(SH)3.4.4.2 Location. The location of dra
31、ins and by-passes shall be specifiedby referencing the letter designation in ANSI B16.34 of the desired bosses.Bosses shall be sufficient distance away from seating area to allow welding ofreplacement by-pass line without damage to valve seat. When nonstandard locationsare required, a drawing shall
32、be furnished by the user indicating the desiredlocation. Threaded boss connections shall not,be used.3.4.4.3 Root connections. Drainand by-pass line connections shall bewelded to the boss in the valve body in accordance with MIL-STD-278. Materialsfor these lines shall be as follows:(a) Composition A
33、 - ASTM A 335, grade P22.(b) Composition B - ASTM A 335, grade Ph.(c) Composition C - ASTM A 106, grade B.(d) Composition E - ASTM A 312, grade 304 (UNS 30400) or grade 316(UNS 31600).3.4.4.4 Bosses. Bosses shall be cast or forged integral with the bodyasspecified (see 6.2). Construction and dimensi
34、ons of bosses shall be in accordancewith ANSI B16.34, undrilled. Forged valve bodies with wall thickness inaccordance with ANSI B16.34 may have bosses built up with weld filler materialselected in accordance with MIL-STD-278. Such bosses shall be liquid penetrantinspected and stress relieved in acco
35、rdance with MIL-STD-278.3.4.4.5 Valves. Drainand by-pass valves shall be in accordance withDrawing 803-5184193, 803-2177525, or 803-1385965.3.4.5 Water wav diameters. Water way diameters of valves shall be inaccordance with table 111. Documents of water ways in classes and sizes notlisted in table I
36、II are not required.TABLE III. Waterwav minimum diameters.Valvesizes Class Class Class Class(inches) 600 900 1500 25002-1/2 2-1/8 1-15/16 1-S5/16 1-1/23 2-5/8 2-5/8 2-3/8 1-3/44 3-7/16 3-7/16 3-1/8 2-1/25 4-3/8 4-5/16. 4-5/16 36 6 5 4-3/4 3-3/48 7-7/8 6-9/16 6-1/4 510 9-3/4 - 8-1/4 7-3/4 612 10-1/4
37、10-1/4 9-1/4 7-1/414 11-1/4 11-1/4 10-1/2 816 12-7/8 12-7/8 11-3/4 93.4,6 Weizhts and center f vit . After completion of the first valve, aweight shall be shown on the drawing. The”manufacturer shall submit center ofgravity information for valves weighing in-excess of 100 pounds. The estimated a7111
38、0 iProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-oa71oMIL-V-1811OF(SH)center of gravity shall be as shown on the drawings (see 6.2). Handwheelactuated, welded end type valves shall not exceed the maximum weights listed intables IVand V. Weights are
39、 based on valves with welded ends and do not includeweights of drains, by-passes, actuators, and so forth. Weights of valves inclasses and sizes not listed in table IV and V are not required. The valveweights in table IV are for class 600; 900, 1500 and 2500 cast gate valves, weldedends. The valve w
40、eights in table V are forthe same valve design in the forgedconfiguration.TABLE IV. Maximum wei!zhtsfor cast bodv valves,Valvesizes(inches)2-1/23456810121416.Class600(pounds)4570110180285615915140519002575Class900(pounds)80105165260425 8101130175023602900Class1500(pounds)8012022535056010251880265030
41、504200Class2500(pounds)10017033561084014402490385044106500TABLE V. Maximum weights for forzed body valves.h , 1 IValvesizes(inches)2-1/23456810121416 Class600(pounds)58911432343707991189182624705362Class900(pounds) 10413621433855210531469227530683770Class1500(pounds)1Q4156.292”45572813322444.3445396
42、55460 .Class2500(pounds)130221435793109218723237500557338450I3.4.7 Flow coefficient. The flowcoefficient (CV) for the”600 to 2500 ratedvalves shall be as specified in table VI. The flow rates are based on values for Ivalves in the fully open position.11Provided by IHSNot for ResaleNo reproduction or
43、 networking permitted without license from IHS-,-,-MIL-V-1811OF(SH)TABLE VI: Minimum CV.Class Class Class ClassSize 600 900 1500 25002-1/2 355 295 295 1413 5-42. 542 444 1894 958 958 791 4095 1599 1554 1544 5586 3107 2157 1947 9158 5540 3847 3489 167210 8493 6080 5366 230112 9740 9740 7933 34061,4 1
44、1734 i1734 10221 459316 15369 15369 12800 50743.4.8 Shock resistance. Valves andvalves with attached gear or poweractuators shall withstand high impact shock in accordance with grade A, hull-bulkhead mounted principal uit, omplete assembly, class I, t-e C ofMIL-S-901.3.4.9 Vibration. Valves shall wi
45、thstand the vibration requirements ofMIL-sTD-167-1. Unless otherwise specified herein, valves with gear or poweractuators shail withstand the vibration requirements.of MIL-STD-167-1.3.4.10 Bonnet and yoke.3.4.10.1 FlanEed.D ressure seal and seal welded membrane Dressure boundarybonnets. Valve classe
46、s 150, 300 and 400 shall have flanged bonnets. Valveclasses 600, 900, 1500 and 2500 shall have pressure seal or seal welded membranepressure boundary bonnets.3.4.10.2 Flanred bonnets. Flanged bonnets shall be of the male and femaleor small tongue and groove type and.spiral wound gaskets in accordanc
47、e,withMIL-G-21032.3.4.1O.3 Pressure seal bonnets, Seal rings for pressure seal bonnets shallprovide a seal either by plastic or elastic expansion. The bonnet seal ringregion of the valve body shall be inlaid with material in accordance withASTM B168.3.4.10.3.1 Plastic exDansion seal rinzs. Seal ring
48、s sealing by plasticexpansion shall have-a Brinell hardness number (Bhn) of 110 maximum and be silverplated in accordance with QQ-S-365, grade A.3.4;10.3.2 Elastic exDansion seal rings. Seal rings sealing by elasticexpansion shall have a Bhn of 140 maximum and be silver plated.3.4.10.4 Seal welded b
49、odv to bonnet Dressure boundary desires. Valves thatemploy seal welded pressure boundary construction between the body and .,bonnetshall be constructed so that the seal weld is isolated from the structure and12a71a71Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-V-1811OF(SH),a71 mechanical l
