1、INCH-POUNDMIL-V-24509A (SH)24 December 1992SUPERSEDINGMIL-V-24509 (SHIPS)21 October 1974(See 6.9)MILITARY SPECIFICATIONVALVES , FLANGED, BALL AND PLUG FORSEWAGE AND SEA WATER SERVICEThis specification is approved for use by the Naval SeaSystems Command, Department of the Navy, and is available for u
2、seby all Departments and Agencies of the Department of Defense.1. SCOPE1.1 w. This specification covers flanged ball and plugvalves for sewage and seawater service, under pressure or vacuum.Sewage contains seawater with varying amounts of detergents,caustics, acids, human wastes, sediments, oils, gr
3、eases,solvents, and other chemical agents used on board ship.1.2 Classification. Valves furnished in the followingtypes, as specified (see 6.2). For flow plans of type 11 and IIIv;ives, see-figures 1 through 9.Type I - 2-way, Z-port.Type II - 3-way, 2-port.Type III - 3-way, 3-port.Beneficial comment
4、s (recommendations, additions, deletions) andany pertinent data which may be of use in improving thisdocument should be addressed to: Commander, Naval Sea Systemscommand, SEA 05Q42, 2531 National Center Building 3,Washington, DC 20362-5160 by using the self-addressedStandardization Document Improvem
5、ent Proposal (DD Form 1426)appearing at the end of this document or by letter.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-24509A (SH)2. APPLICA
6、BLE DOCUMENTS2.1 Government documents.2.1.1 Specifications, standards . and handbooks. Thefollowing specifications, standards, and handbooks form a part ofthis document to the extent specified herein. Unless otherwisespecified, the issues of these documents are those listed in theissue of the Depart
7、ment of Defense Index of Specifications andStandards (DODISS) and supplement thereto, cited in thesolicitation. (see 6.2).SPECIFICATIONSFEDERALPPP-F-320 - Fiberboard; Corrugated and Solid,QQ-C-390QQ-N-281QQ-N-286TT-E-489MILITARYMIL-V-3 -MIL-S-901 -MIL-S-1222 -MIL-L-19140 -MIL-F-20042 -MIL-P-20689 -M
8、IL-B-24480 -DOD-V-24657 -Sheet Stock (Container Grade), andCut Shapes.Copper Alloy Castings (IncludingCast Bar) .Nickel-Copper-Alloy Bar, RodtPlate, Rod, Sheet, Strip, Wire,Forgings, and Structural andSpecial Shaped Sections.Nickel-Copper-Aluminum Alloy,Wrought(UNS N05500) .Enamel , Alkyd, G1OSS, .L
9、ow VOCContent.Valves, Fittings, and Flanges (Exceptfor Systems Indicated Herein) : Packagingof.Shock Tests, H.I. (High Impact) ;Shipboard Machinery, Eguipment, andSystems, Requirements for.Studs, Bolts, Hex Cap Screws, SocketHead Cap Screw, and Nuts.Lumber and Plywood, Fire-retardantTreated.Flangesr
10、 Pipe, and Bulkhead, Bronze(Silver Brazing).Plastic Plastisol (For Coating MetallicObjects) .Bronze, Nickel-Aluminum (UNS No. C95800)Casting, For Seawater SeSystems. (Metric)MIL-C-24723 - Castings, Nickel-Copper AlloyMIL-R-83248 - Rubber Fluorocarbon ElastomerTemperature, Fluid, and ComprtResistant.
11、STANDARDSFEDERALFED-STD-595 -MILITARYMIL-STD-167-1 -MIL-STD-276 -MIL-STD-278 -MIL-STD-798 -MS16142 -MS18229 -Colors Used in GovernmentProcurement.iaryHighssion SetMechanical Vibrations of ShipboardEguipment (Type I - Environmentaland Type II - Internally Excited).Impregnation of Porous NonferrousMet
12、al Castings.Welding and Casting Standard.Nondestructive Testing, Welding,Quality Control, Material Controland Identification and HI-ShockTest Requirements for Piping SystemComponents for Naval Shipboard Use.Boss , Gasket Seal Straight ThreadTube Fitting, Standard DimensionsFor.Plug for noteRing Gask
13、et.(Unless otherwise indicated,” copies of federal and militaryspecifications, standards, and handbooks are available from theStandardization Documents Order Desk, BLDG. 4D, 700 RobbinsAvenue, Philadelphia, PA 19111-5094.)2.1.2 Other Government documents, drawinqs, andpublications. The following oth
14、er Government documents,drawings, and publications form a part of this document to theextent specified herein. Unless otherwise specified, the issuesare those cited in the solicitation.3Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-V-24509A (SH
15、)DRAWINGSNaval Sea SyStemS Command (NAVSEA)803-1385620 - Handwheels for Valves.(Application for copies should be addressed to: Commander,Portsmouth Naval Shipyard, Code 202.2, Portsmouth, NH 03801.)PUBLICATIONSNAVSEA904S-LP-O22-7O1O - Valve, Manual and RemoteControl Systems.S6435-QJ-MMC-O1O - Design
16、 Criteria andInstallation Requirements,Remote Mechanical ValveActuator Systems.S9505-AG-NMM-O1O - Rigid Rod Valve Remote ControlSystem.(Applications for copies should be addressed to theStandardization Documents Order Desk, BLDG. 4D, 700 RobbinsAvenue, Philadelphia, PA 19111-5094. )2.2 Non-Governmen
17、t publications. The following document(s)form a part of this document to the extent specified herein.Unless otherwise specified, the issues of the documents which areDOD adopted are those listed in the issue of the DODISS cited inthe solicitation. Unless otherwise specified, the issues ofdocuments n
18、ot listed in the DODISS are the issues of thedocuments cited in the solicitation (see 6.2).AMERICAN SOCIETY FOR TESTING AND XATERIALS (ASTM)A 494 -B61-B 14S -B 584 -D 1400 -D 1457 -Standard Specification for Castings Nickeland Nickel Alloy. (DOD adopted)Standard Specification for Steam or ValveBronz
19、e Castings. (DOD adopted)Standard Specification for Aluminum-BronzeSand Castings.Standard Specification for Copper Alloy SandCastings for General Applications.Standard Test Method for Non-destructiveMeasurement of Dry Film Thickness of Non-conductive Coatings Applied to a NonferrousMetal Base.Standa
20、rd Specification forPolytetrafluoroethylene (FE) Molding andExtrusion Materials. (DOD adopted)4Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-V-24509A (SH)AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM)(Continued)F 467 - Standard Specification
21、 for Nonferrous Nutsfor General Use. (DOD adopted)F 468 - Standard Specification for Nonferrous Bolts,Hex Cap Screws, and Studs for GeneralUse. (DOD adopted)SociePhilaApplication for copies should be addressed to the Americany for Testing and Materials, 1916 Race Street,elphia, PA 19103.)AMERICAN NA
22、TIONAL STANDARDS INSTITUTE (SI)B1.1 - Unified Inch Screw Threads (UN and UNR ThreadForm) . (DOD adopted)B18.2.1 - Square and Hex Bolts and Screws Inch Series.(DOD adopted)B18.2.2 - Square and Hex Nuts (Inch Series) .(DODadopted)B46.1 - Surface Texture (Surface Roughness, Waviness,and Lay) . (DOD ado
23、pted)(Application for copies should be addressed to the AmericanNational Standards Institute, 11 West 42nd Street, 13th Floor,New York, NY 10036) .(Non-Government standards and other publications arenormally available from the organizations that prepare ordistribute the documents. These documents al
24、so may be availablein or through libraries or other informational services.)2.3 Order of precedence. In the event of a conflictbetween the text of this document and the references citedherein, the text of this document takes precedence. Nothing inthis document, however, supersedes applicable laws an
25、dregulations unless a specific exemption has been obtained.3. REQUIREMENTS3.1 First article. When specified (see 6:2), a sampleshall be subjected to first article inspection (see 6.3) inaccordance with 4.5.3.2 Materials. The material for ball and plug valves shallbe as specified herein. Material sel
26、ected shall prevent galling,seizing and excessive wear of operating parts and shall haveProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-V-24509A (SH)galvanic compatibility with system piping.aPPrOval of anY constituent material shallguaranty of t
27、he acceptance of the finishedAcceptance ornot be construed as aproduct.3.2.1 . Ball valve stems shall be nickel-copper alloyin accordance with QQ-N-281.3.2.2 Impregnation. Impregnation of valve body castings,where required, shall be accomplished in accordance with MIL-STD-276 and MIL-STD-278.3.2.3 M
28、etallic parts. The bodies, balls, plugs, covers,glands and base plates shall be made from tin-bronze, alloysC90300 or C92200 in accordance with ASTM B 61, ASTM B 584, orQQ-C-390: nickel-aluminum-bronze, alloy C95800 in accordance withASTM B 148 or MIL-B-24480; nickel-copper alloys in accordancewith
29、ASTM A 494, QQ-N-281 or MIL-C-24723: or nickel-copper-aluminum alloy in accordance with QQ-N-286.3.2.4 Fasteners. Fastener material shall be nickel-copper,grades 400 or 405 in accordance with MIL-S-1222, ASTM F 467, orASTM F 468 or nickel-copper-aluminum grade 500 in accordance withMIL-S-1222.3.2.5
30、O-rinqs. O-rings shall be fluorocarbon elastomer inaccordance with MIL-R-83248.3.2.6 Non-metallic Darts. Unless otherwise specifiedherein, SealS, seats, gaskets, diaphragms, bearings, and Othernon-metallic parts shall be commercial, made of fluorocarbonresins or other materials compatible with sewag
31、e, seawater, andvalve body material. Materials such as glass or graphite fillermay be added to fluorocarbon resin, to improve wear resistance.3.2.7 Recovered materials. Unless otherwise specifiedherein, all equipment, material, and articles incorporated in theproducts covered by this specification s
32、hall be new or may befabricated using materials produced from recovered materials tothe maximum extent practicable without jeopardizing the intendeduse. The term “recovered materials” means materials which havebeen collected or recovered from solid waste and reprocessed tobecome a source of raw mate
33、rials as opposed to virgin rawmaterials. None of the above shall be interpreted to mean thatthe use of used or rebuilt products is allowed under thisspecification unless otherwise specifically specified.thenot3.3 Construction. Ball and plug valves shall conform torequirements and dimensions specifie
34、d herein. valves shallleak under positive pressure, atmospheric pressure, or vacuum6Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-V-24509A (SH)(where specified) during service use. The valves shall be tightseating at all ports. Valve bodies sha
35、ll withstand the appliedstresses developed during operation of the valve. Valves shallbe operable by one person. Plug valves shall not utilize a liftarrangement to unseat the plug before rotating, to reduceoperating torque. Valves shall not be stick or gun lubricated toeffect a seal or reduce operat
36、ing torgue. Low frictionfluorocarbon resin material shall be employed on valve surfacesto prevent sticking and to provide low operating torgue for easeof actuation. The ball or plug ports shall properly align withthe body ports in all flow positions. The plug shall not raiseor lower when subject to
37、line pressure or vacuum.3.3.1 Dimensions. Valve face-to-face and center-to-facedimensions shall be in accordance with table I for the valve sizespecified (see 6.2) . Face-to-face tolerance shall be plus orminus 1/16 inch. The center-to-face tolerance shall be plus orminus 1/32 inch. Flow passages sh
38、all be full ported round boreand shall be equal to the nominal size of the valve (see table I)with a tolerance of plus 1/16 minus zero inch. The inlet andoutlet ways shall be chamfered to provide a smoother transitionfrom the valve bore to match the bore of the end flange of thesame nominal size. Di
39、mensions and machining of end flanges shallbe in accordance with MIL-F-20042, class 150. Drilled holesshall straddle the vertical centerline. Spot facing of bearingsurfaces for bolt heads and nuts shall be in accordance with MIL-F-20042.TABLE T. Dimensions.Valve size Face-to-face Center-to-face(inch
40、es) 2-way 3-way(inches) (inches)1-1/4 5-1/4 -1-1/2 5-3/4 3-1/82 6-1/22-1/23-1/27-3/4 43 9 4-1/23-1/2 10 54 10-1/2 5-1/44-1/2 12 -5 13 6-1/26 15 7-1/28 19 9-1/23.3.2 Rotation. Ball and plug rotation shall be limited bypositive stops to the zero and 90 degree positions, and the zeroand 180 degree posi
41、tions, for 90-degree and 180-degree turnvalves, respectively (see figures 1 through 9) . The position of7Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-V-24509A (SH)the ports in the ball or plug shall be shown by permanent anddistinct external m
42、arks. The valve shall incorporate provisionsfor positively restraining the ball or plug in each of its flowand closed positions.3.3.3 Stem, ball, and Pluq. The stem and plug shall befabricated from one piece, or the stem positively attached to theplug by welding in accordance with MIL-STD-278. Plug
43、and seatsurfaces throughout the periphery shall be smooth and providemaximum area contact with minimum clearances. Plug and seatsurfaces shall have no grooves, cavities, or relief spaces totrap sediment or solidifying residues between the plug and bodyduring plug rotation and in the plug closed and
44、flow positions.Ball and plug ports shall align with the body in the flowposition so as not to create pockets or steps that could collectsewage or solid matter in the valve. Ball valve cavities shallbe filled with fluorocarbon resin inserts to prevent trappingsediment or solidifying residues in the v
45、alve cavities. Ballvalve stems shall not be removable while the valve is installedin the piping and in service, and shall be “blowout! proof inconstruction, such as with a collared stem.3.3.4 Low friction surfaces. Valves shall consist of aball or plug rotating in the valve body cavity and operating
46、against a port seat or seal face of polytetrafluoroethylene(PTFE) material. Valve port seat or seal shall exert positivecontact pressure against the ball or plug during rotation and inall valve positions. The valve plug or ball shall be uncoated orcoated with PTFE fluorocarbon resin. Low friction tr
47、eatedsurfaces shall be either coated or sleeved with fluorocarbonresin (PTFE) in accordance with ASTM D 1457. Fluorocarbon resinsurfaces that rub on one another shall be of slightly dissimilarformulations to reduce galling. Sleeved plug valves shallconsist of a plug rotating in a PTFE resin sleeve p
48、ositivelysecured in the valve body plug cavity. The sleeve may also actas the port seal.3.3.4.1 Coating. Coating material shall be baked on spray-aPplied PTFE fluOrOcarbOn resin material. Coating thicknessshall be 6 roils minimum (See 4.7.2).3.3.4.2 Sleeve. Valve plug cavity sleeve shall be moldedfr
49、om PTFE material. The sleeve shall be securely attached in thevalve body plug cavity by a suitable locking method such asinterlock grips or grooves to prevent loosening in service.3.3.5 Handwheels and lever handles. Handwheels smallerthan 11 inches in diameter shall be of commercial design andmanufactured from steel, ductile iron, or malleable iron.Handwheels 11 inches in diameter and larger shall be cast steel8Provided by IHSNot for ResaleNo reproduction or ne
