1、Designation: F993 17 An American National StandardStandard Specification forValve Locking Devices1This standard is issued under the fixed designation F993; the number immediately following the designation indicates the year of originaladoption or, in the case of revision, the year of last revision.A
2、number in parentheses indicates the year of last reapproval.Asuperscriptepsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S. Department of Defense.1. Scope1.1 This specification2covers the application, design,
3、andmaterials for valve locking devices.1.2 Locking devices Types I and II described in thisspecification are designed to secure the valve in a fully openedor completely closed position.1.3 This specification does not apply to valves equippedwith locking devices from the valve manufacturer, unless th
4、isstandard is invoked in the procurement ordering data for thevalve or its locking device, or both.1.4 This specification is intended to supersede NASEAdrawing S4824-1385509. However, cancellation of that draw-ing and adoption of this specification can only be effected bythe navy.1.5 The values stat
5、ed in inch-pound units are to be regardedas standard. No other units of measurement are included in thisstandard.1.6 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of
6、 International Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:3A36/A36M Specification for Carbon Structural SteelA240 Specification for Chromium and Chromium-NickelStainless Steel Plat
7、e, Sheet, and Strip for Pressure Vesselsand for General ApplicationsA492 Specification for Stainless Steel Rope WireA668/A668M Specification for Steel Forgings, Carbon andAlloy, for General Industrial UseB209 Specification for Aluminum and Aluminum-AlloySheet and PlateB580 Specification for Anodic O
8、xide Coatings on Alumi-numF708 Practice for Design and Installation of Rigid PipeHangers2.2 Other Documents:ANSI B18.1.1 Small Solid Rivets 7/16 Inch Nominal Diam-eter and Smaller4American Welding Society D1.1 on Steel53. Classification3.1 Valve locking devices shall be classified by the follow-ing
9、types and grades in accordance with the method of lockingand material used.3.2 Types:3.2.1 Type IWire rope assembly (see Fig. 1 and Fig. 2).3.2.2 Type IIHandwheel latch (see Fig. 3 and Fig. 4).3.2.3 Type IIILocking shield (see Fig. 5).3.3 Grades:3.3.1 Grade AStainless steel, Specification A240, Type
10、316.3.3.2 Grade BAnodized aluminum, Specification B209,Alloy 5052.3.3.3 Grade CCarbon steel, commercial quality steel (seeSpecification A36/A36M).4. Ordering Information4.1 Orders for material under this specification shall includethe following:4.2 ASTM Designation and year of issue.4.3 Type.1This s
11、pecification is under the jurisdiction of ASTM Committee F25 on Shipsand Marine Technology and is the direct responsibility of Subcommittee F25.11 onMachinery and Piping Systems.Current edition approved May 1, 2017. Published May 2017. Originallyapproved in 1986. Last previous edition approved in 20
12、11 as F993 86 (2011).DOI: 10.1520/F0993-17.2This specification is intended to supersede NAVSEADrawing S4824-1385509.However, cancellation of that drawing and adoption of this specification can only beeffected by the Navy.3For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact
13、 ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.4Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http:/www.ansi.org.5Available fr
14、om American Welding Society (AWS), 8669 NW 36 St., #130,Miami, FL 33166-6672, http:/www.aws.org.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with internationally recognized pri
15、nciples on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.14.4 Grade.4.5 Padlock Size (if necessary).4.6 Rubber Coating (if necessar
16、y).4.7 Necessary Dimensions:4.7.1 Type I:4.7.1.1 Length of wire strand.FIG. 1 Type IWire Rope AssemblyFIG. 2 Miscellaneous Type I DetailsF993 1724.7.1.2 Diameter of pipe.4.7.2 Type II:4.7.2.1 Maximum height (fully opened).4.7.2.2 Minimum height (fully closed).4.7.2.3 Handwheel thickness.4.7.2.4 Hand
17、wheel depth.4.7.2.5 Diameter at location of attachment.4.7.3 Type III:4.7.3.1 Depth.4.7.3.2 Height.4.7.3.3 Width.4.7.3.4 Outside diameter (OD) of pipe.5. Materials and Manufacture5.1 Materials:5.1.1 Type I Materials:5.1.1.1 Pipe ClampIndicate diameter, similar to PracticeF708, Fig. 1, material speci
18、fied by grade.5.1.1.2 Ring LinkSize to be not less than clearance shownin Practice F708, Table 3, Column F, material specified bygrade.5.1.1.3 Common Wire Strand316-in. diameter, sevenstrands of seven wires each, stainless steel, Specification A492,Alloy 316.5.1.1.4 Tiller Rope Clamp316-in. cable si
19、ze, manufacturer,stainless steel (optional).5.1.1.5 Rigid Eye Spring Hook58-in. eye diameter,12-in.snap opening, plated forged steel, Specification A668/A668M,Class D.5.1.1.6 SleeveSwaging, oval, for316-in. diameter wirerope, copper.5.1.2 Type II Materials:5.1.2.1 Modified Pipe ClampIndicate diamete
20、r, similar toPractice F708, Fig. 1, material specified by grade.5.1.2.2 Flat Head Rivet14-in. nominal size, ANSIB18.1.1, material specified by grade.5.1.2.3 Single Acting Quick Release Pin14-in. nominalsize by510-in. grip, stainless steel, Specification A240, Type316.5.1.2.4 LanyardWire rope,18-in.
21、diameter, seven strandsof seven wires each, 12 in. long, stainless steel SpecificationA492, Alloy 316.5.1.2.5 SleeveSwaging, oval, for18-in. diameter wirerope, copper.5.1.2.6 Lanyard ClipFlatbar,116 in. thick by 1 in. wide by112 in. long, stainless steel, Specification A240, Alloy 316.5.1.2.7 Lever
22、ArmSize to suit, 16-gage material specifiedby grade.5.1.3 Type III Materials:5.1.3.1 PlateIndicate size, 16 gage, material specified bygrade.5.1.3.2 Single-Acting Quick Release Pin14-in. nominalsize by12-in. grip, stainless steel, Specification A240, Type316.5.1.3.3 LanyardWire rope,18-in. diameter,
23、 seven strandsof seven wires each, 12 in. long, stainless steel, SpecificationA492, Alloy 316.5.1.3.4 SleeveSwaging, oval, for18-in. diameter wirerope, copper.5.1.3.5 Lanyard ClipFlatbar,116 in. thick by 1 in. wide by112 in. long, stainless steel, Specification A240, Alloy 316.5.1.3.6 Lockbar78 in.
24、wide by length to suit by116 in.thick, material specified by grade.5.2 Manufacture:5.2.1 Edges of the locking device shall be smooth. Thedevices shall also be free of defects and burrs.FIG. 3 Type IIHandwheel LatchF993 1735.2.2 Welds shall be done in accordance with AmericanWelding Society D1.1.6. G
25、eneral Requirements6.1 A label plate shall be installed on or near the lockingdevice to instruct the operator on usage.6.2 When noise reduction is necessary, the contacting partsof the locking device shall have a rubber coating or lining.6.3 The locking device must be able to lock the valve inboth t
26、he fully opened and completely closed positions.6.4 When using Type I, the cable shall be installed suffi-ciently tight to prevent more than slight movement of thehandwheel in a direction opposite of the designed position butnot so tight as to place the cable in tension.6.5 The position of the locki
27、ng device on the handwheelshall be as to resist movement of the valve stem.6.6 Type II dimensions shall be used to determine the size ofthe lever arm, extension on pipe hanger, and the position of thelocking holes and slot.6.7 When specified by the purchaser, a padlock can be usedinstead of the quic
28、k release pin or spring hook.7. Dimensions and Tolerances7.1 Dimensions shall be as specified in the figures shown.7.2 Tolerances are 6116 in. except for drilled hole diameterfor pin which shall be +132 in., 0 in.8. Keywords8.1 locking device; marine technology; ship; valve; valvelocking deviceFIG.
29、4 Miscellaneous Type II DetailsF993 174ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the
30、riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of
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32、ke your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained
33、by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 5 Type IIIValve Cover BoxF993 175
