1、)I)MIL-V-24624(SH)3 November 1983MILITARY SPECIFICATIONVALVES, BUTTERFLY, WAFER AND LUG STYLE,SHIPBOARD SERVICEThis specification is approved for use by the Naval Sea Systems Command,Department of the Navy, and IS available for use by all Departments andAgencies of the Department of Defense.1. SCOPE
2、1.1 Scope. This specification describes wafer and lug style butterflyvalves for shipboard service.1.2 Classification. Valves shall be of the following styles and typesas specified (see 6.2.1):Style A - Wafer.Style B - Lug.Type I - Corrosion resistant steel, synthetic seated, fireresistant.Type 11 -
3、Corrosion resistant steel, metal seated.Type III - Non-ferrous, synthetic seated, fire resistant.Type IV - Non-ferroue, metal seated.2. APPLICABLE DOCUMENTS2.1 Government documents.2.1.1 Specifications and standards. Unless otherwise specified, the fol-lowing specifications and standards of the Issu
4、e listed in that issue of theDepartment of Defense Index of Specifications and Standards (DoDISS) specifiedin the solicitation form a part of this specification to the extent specifiedherein.Beneficial comments (recommendations, additions, deletions) and any pertinentdata which may be of use in impr
5、oving thie document should be addressed to:Commander, Naval Sea Systems Command, SEA 5523, Department of the Navy,Washington, DC 20362 by using the self-addressed Standardization DocumentImprovement Proposal (DD Form 1426) appearing at the end of this documentor by letter.FSC 4820Provided by IHSNot
6、for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-v-24624(SH)SPECIFICATIONSFEDERALQQ-C-465QQ-N-281QQ-N-286QN-288MILITARYMIL-V-3MIL-S-901MIL-T-5624MIL-P-15024MIL-P-15024/5 -MIL-F-16884 -MIL-B-24480 -STANDARDMILITARYMIL-STD-167-1 -MIL-STD-278 -Copper-Aluminum Alloys (A
7、luminum Bronze) (CopperAlloy Numbers 606, 614, 630, 632M, and 642);Rod, Flat Products With Finished Edges (FlatWire, Strip, and Bar), Shapes, and Forgings.Nickel-Copper Alloy Bar, Rod, Plate, Sheet, Strip,Wire, Forgings, and Structural and Special ShapedSectione.Nickel-Copper-Aluminum Alloy, Wrought
8、 (UNS N05500and N05502).Nickel-Copper Alloy and Nickel-Copper-SiliconAlloy Ca8tlngs.Valves, Fittings, and Flanges (Except for SystemsIndicated Herein); Packaging of.Shock Tests, H.I. (High-Impact); Shipboard Machin-ery, Equipment and Systems, Requirements for.Turbine Fuel, Aviation, Grades JP-4 and
9、JP-5.Plates, Tage and Banda for Identification ofEquipment.Plates, Identiflcatton.Fuel, Naval Distillate.Bronze, Nickel-Aluminum Castings, for SeawaterService.Mechanical Vibrations of(Type I - EnvironmentalExcited).Shipboard Equipmentand Type 11 - InternallyFabrication Welding and Inspection; and Ca
10、stingInspection and Repair for Machinery, Piping andPressure Veaaela in Ships of the United StatesNavy.2.1.2 Government drawings. The following Government drawinge fom a partof this specification to the extent specified herein.DRAWINGSNAVAL SEA SYSTEM8 cowm (NAvsEA)NAVSHIPS 803-1385620- Handwheels f
11、or Valvea.NAVSHIPS 810-1385892 - Flanges, Bronze, With Butterfly Valve.(Copies of specifications , standards and drawings required by contractorsin connection with specific acquisition functions should be obtained from thecontracting activity or ae directed by the contracting officer.)2Provided by I
12、HSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-V-24624(SH)2.2 Other publications. The following documents form a part of thisspecification to the extent specified herein. The issues of the documentswhich are indicated as DoD adopted shall be the issue listed
13、 In the currentDoDISS and the supplement thereto, If applicable.AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI)B16.5 - Pipe Flanges and Flanged Fittings. (DoD adopted)B16.34 - Valves - Flanged and Buttwelding End Steel, NickelAlloy, and Other Special ldloys. (DOD adopted)B18.2.1 - Square and Hex Bolts
14、and Screws Inch Series IncludingHex Cap Screws and Lag Screws. (DOD adopted)(Application for copiee should be addresaed to the American NationalStandards Institute, 1430 Broadway, New York, NY 10018.)AMERICAN PETROLEUM INSTITUTE (API)STD 607 - Fire Test for Soft-Seated Ball Valves.(Application for c
15、opies should be addretaged to the American PetroleumInstitute, 2101 L Street, NW, Washington, DC 20037.)ASTMA 276 -A 479 -A 564 -B61-B62 -B 164 -Stainless and Heat-Resisting Steel Bars and Shapes.Stainless and Heat-Resisting Steel Wire, Bars, andShapes for Use in Boilers and Other Pressure Vessels.(
16、DOD adopted)Hot-Rolled and Cold-Finished Age-Hardening Stainlessand Heat-Resisting Steel Bars, Wire, and Shapes.Steam or Valve Bronze Castings. (DoD adopted)Composition Bronze or Ounce Metal Castings. (DoD adopted)Nickel-Copper Alloy Rod and Bar. (DOD adopted)(Application for copies ehould be addres
17、sed toPhiladelphia, PA 19103.)INSTRUMENT SOCIETY OF AMERICA (IsA)S75.02 - Control Valve Capacity Test(Application for coplee should be addressed toAmerica, P.O. Box 12277, Research Triangle Park, NCFLUID CONTROLS INSTITUTE (FCI)70-2 - Control Valve Seat Leakage.(Application for copies should be addr
18、essed toP.O. Box 3854, Tequesta, FL 33458.)ASTM, 1916 Race Street,procedure.the Instrument27709.)Society ofthe Fluid Controls Institute,(Industry association specifications and standards are generally availablefor reference from libraries. They are also distributed among technical groupsand using Fe
19、deral agencies.)2.3 Order of precedence. In the event of a conflict between the text of) thim specification and the references cited herein, the text of this speclfi-cation shall take precedence.3Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-V-
20、24624(SH)3. REQUIREMENTS3.1 qualification. Valves furnished under this specification shall beproducts which are qualified for listing on the applicable qualified productslist at the time set for opening of bids (see 4.3 and 6.3).3.2 Materials. Valve assembly material shall be in accordance with tabl
21、e 1.TABLE I. Valve assembly material.Name ofpart Type I and II materialBody 316 corrosion resistant steelDisc 316 corrosion resistant steelOther Corrosion resistant steelwetted chosen for strength andand moving galling ret3iatancepartsSeat and TFE, glass filled WE, fluor-stern carbon, graphitic pack
22、ing,seals corrosion resistant steelManual Corrosion resistant steelactuatorshaftsBrackets Corrosion resietant steelandadapters&pe 111 and IV materialQQ-C-465, alloy 632MMIL-B-24480QQ-N-28AQQ-N-288ASTMB 164QQ-N-286QQ-N-286MIL-B-24480ASTM B 61*N-281QN-286QQ-N-288ASTM B 164C-465, alloy 632MTFB, glass f
23、illedWE, fluorocarbon, graphiticpacking, nickel-copper (Ni-Cu)ASTM B 61ASTM B 62MIL-B-24480QQ-C-465, alloy 632MNickel-copperw-C-465, alloy 632P!tIIixL-B-24480 I )Nickel-copper4Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-v-24624(SH)3.2.1 Recov
24、ered materials. Unless otherwise specified herein, all equip-ment, material, and articles incorporated in the products covered by this spec-ification shall be new and shall be fabricated using materials produced fromrecovered materials to the maximum extent practicable without jeopardizing theintend
25、ed use. The term “recovered materials* means materials which have beencollected or recovered from solid waste and reprocessed to become a source ofraw materials, as opposed to virgin raw materials. None of the above shall beinterpreted to mean that the use of used or rebuilt products is allowed unde
26、rthla specification unless otherwise specifically specified.3.3 General. Valves shall be in accordance with ANSI B16.34, class 150.3.3.1 Dimensions. Valve face-to-face dimensions shall be in accordancewith table II. Valve size shall be as specified (see 6.2.1).TABLE II. Valve face-to-face dimensions
27、.Valve size Valve face-to-facein inches in inches 1/16 inch22-1/233-1/24568101214161820241-3/41-7/81-7/822-1/82-1/42-1/42-1/22-13/163-3/163-5/844-1/256-1/163.3.2 Flow capacity. The minimum flow capacity shall be in accordancewith table III.Provided by IHSNot for ResaleNo reproduction or networking p
28、ermitted without license from IHS-,-,-.MIL-V-24624( SH)TABLE 111. Minimum flow capacity.Minimum flow coefficient ()Valve size I C*22-1/233-1/2456810121416182024557516525040060095018002900420058007300960013,50021,6003.3*3flanges in3.3.4flanges in3.3.5attachmentTypes I and II valves shall be designed
29、for installation betweenaccordance with ANSI B16.5.Types III and IV valves shall be designed to be installed betweenaccordance with Drawing 810-1385892.Lug style valves shall be provided with tapped holes to permitto mating flanges with fasteners in accordance with 3.5.3.4 Travel stops. Valves shall
30、 include an internal travel stop in theclosed position to prevent disc overtravel. The internal stop shall be inte-grally cast, forged, or welded and shall be a part of the body of the valve.The stop shall be sufficiently rugged to withstand erosion by fluid flow.3.5 Fasteners. Flange fasteners for
31、lug style valves shall be cap screwsIn accordance wfth ANSI B18.2.1. Lug style valves shall have tapped flange holeswhich provide for thread engagement of fully formed threads to a depth not leaethan the nominal bolt diameter.3.5.1 Tapered thread plugs or fasteners shall not be used.3.6 Seats. Seats
32、 shall be designed to seal hi-directionally. Syntheticseats shall include a metal to metal backup seat for fire resistance.3.6.1 In the closed position of the valve, the seat shall seal overa minimum 5 degree included angle of rotation of the disc for valve size 12inches and less, and over a 3 degre
33、e angle of disc rotation for valve 8izelarger than 12 inches.3.6.2 Stem and disc assembly shall be double offset design, and shall havea single stuffing box stem seal.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I MIL-V-24624(SH) 3.6.3 Seats shall
34、 be replaceable without removing the stem and discassembly,3.6.4 Seats shall be either reversible or shall be designed to physicallypreclude improper installation.3.6.4.1 The seat retainer shall be contained by a recess in the body ofthe valve to preclude a potential external leak path through the b
35、ody and therecess shall be within the flange gasket area. The seat retainer shall beattached to the body of the valve through the face of the retainer. Style Bvalves shall be designed such that the seat retainer can withstand the ratedpressure of the valve in open end connections.3.6.5 Synthetic sea
36、ting materials shall be compatible with fuels inaccordance with MIL-T-5624 and MIL-F-16884 (see table I).3.6.6 Synthetic seats shall be designed to provide zero leakage. Metalto metal seats shall have a maximum seat leakage rate of 10 cubic centimeters(cm3) per inch of nominal size per hour (see 4.3
37、.2).3.7 Stems. Stems shall be rigidly attached to the disc. Means shall beprovided to preclude stem or stem piece expulsion from the body of the valvein the event of part failure. The stem retention device shall be in the bodyneck or shall be so constructed that it is functional during stem seal rep
38、lacementand adjustment and cannot be disassembled during stem seal maintenance. Thisfeature shall be independent of the valve actuating mechanism.)3.7.1 Stem packing shall be replaceable without removing the valve fromthe piping system or removing an actuator from the valve.3.7.2 Stem seals shall in
39、corporate a fire resistant feature.3.8 Disc and metal seat facin. The edge of the disc and seat may becoated with abrasion and fouling resistant materials which are compatible withthe fuels in 3.6.5 and with seawater or mixtures of seawater and fuel.3.9 Position indication. Valves shall be provided
40、with a local positionindicator which shall be an integral part of the stem section that la exposedto the atmosphere.3.10 Actuators. Valves shall be actuated by electric or manual actuators.Manual actuators for all size valves shall be enclosed worm gear type. Manualactuator handwheels shall be in ac
41、cordance with Drawing 803-1385620 when thedepicted sizes are used. Actuator materials shall be in accordance with table I.The type of actuator shall be as specified (see 6.2.1). The maximum allowabletangential force required to close the valve, based on handwheel size, shall bein accordance with tab
42、le IV.7Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-v-24624(SH)TABLE IV. Maximum tangential handwheel force.Handwheel diameter Total tangential force on rimof handwheelInches PoundsBelow 5 305 506 727 908 1029 11410 12011 12912 13514 13816 141
43、18 14421 14724 and above 1503.11 Shock resistance. Valves, with actuators installed (gear box orelectric), shall withstand the grade A, class I, type C shock test requirementsof MIL-S-901.3.12 Vibration resistance. Valves with actuators installed shall meet )the vibration requirements of MIL-STD-167
44、-1.3.13 Cycle life. Valves shall be designed for a life of 20,000 cyclesand shall pass the tests of 4.3.6.3.14shall pass3.15Society of3.16Fire resistance. Synthetic seated valves shall be subjected to andthe fire test of 4.3.7.Weldi. Welding shall be in accordance with MIL-STD-278 or AmericanMechani
45、cal Engineers (ASME) practice. Welds shall be free of cracksoYE!w?&” Valves shall have the ANSI class, the name or trademarkof the manufacturer, and the recommended flow direction arrow cast or forgedintegrally with the-body, or permanently attached to the body.3.16.1 Identification plate. Valves sh
46、all be provided with a permanentlyattached identification plate in accordance with MIL-P-15024 and MIL-P-15024/5,type A, B, C or D. The identification plate shall contain the followinginformation:(a)(b)(c)(d)(e)(f)ManufacturersValve size andBody, trim andManufacturersname or trademark.rating.seat ma
47、terial.identification number (Federal SupPly - Code ofManufacturer (FSCM).MIL-V-24624 (military specification number). )Component Identification Number (CID).8Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-V-24624(SH)3.17 Drawings. The contracto
48、r shall prepare drawings in accordance withthe data ordering document (see 6.2.2), and the following unique features shallbe included:(a) Proportional scaled cross-sectional assembly which clearly depictsthe design and construction of the valve, and identification ofcritical clearances and dry weigh
49、t.(b) Bill of materials listing specification, grade, condition, andany other data required to identify the properties of thematerials.(c) Detail drawings: Detail drawings shall be furnished of all partsand subassemblies necessary for evaluation of the equipment andparts necessary for maintenance and overhaul of the valve.Details of these parts shall be so complete as to permit emer-gency manufacture by a N
