1、Designation: F994 86 (Reapproved 2018) An American National StandardStandard Specification forDesign and Installation of Overboard Discharge HullPenetration Connections1This standard is issued under the fixed designation F994; the number immediately following the designation indicates the year of or
2、iginaladoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscriptepsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers carbon steel overboard dis-charge hu
3、ll penetrations for system piping of NPS 1 throughNPS 24 (see Note 1).NOTE 1The dimensionless designator NPS (nominal pipe size) hasbeen substituted in this standard for such TRADITIONAL terms asnominal diameter, size, and nominal size.1.2 The minimum pipe schedule and reinforcement dimen-sions pres
4、ented in Tables 1-6 are based on specifications in 46CFR, 56.50-95, and Navy Design Data Sheet 100-1.1.3 This specification does not include sea chest penetra-tions.1.4 This specification does not include penetrations inprotective plating.1.5 The values stated in inch-pound units are to be regardeda
5、s 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 International Standards, Guides and Recom
6、-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2A519 Specification for Seamless Carbon and Alloy SteelMechanical Tubing2.2 ANSI Standard:3B36.10 Welded and Seamless Wrought Steel Pipe2.3 Military Document:4MIL-S
7、TD-1689 Fabrication, Welding, and Inspection ofShips Structure2.4 Other Documents:Title 46 Code of Federal Regulations (CFR), Subchapter F,Marine Engineering4Department of the Navy Bureau of Ship Design Data Sheet100-15ABS Rules for Building and Classing Steel Vessels63. Classification3.1 Type INonr
8、einforced penetrations. Table 1 providesminimum schedules for the penetration pipe. See Fig. 1 fordetails of the penetration.3.2 Type IIDoubler plate-reinforced penetrations. Table 2provides minimum dimensions for doubler plates.3.2.1 Class 1Inboard doubler plates (Fig. 2).3.2.2 Class 2Outboard doub
9、ler plates (Fig. 3).3.3 Type IIIInsert plate-reinforced penetrations. Table 3provides minimum dimensions for insert plates.3.3.1 Class 1Single-bevel insert plates (Fig. 4).3.3.2 Class 2Double-bevel insert plates (Fig. 5).3.4 Type IVSleeve-reinforced penetrations. Fig. 6 detailssleeve-reinforced pene
10、trations.3.4.1 Class 1Sleeves of nonmachined steel tube. Table 4provides minimum dimensions for nonmachined sleeves.3.4.2 Class 2Sleeves of machined steel tube or pipe. Table5 provides minimum dimensions for machined sleeves.3.4.3 Class 3Sleeves of rolled steel flatbar or plate. Table6 provides mini
11、mum dimensions for rolled sleeves.4. Materials4.1 Discharge pipe shall be of an acceptable material asspecified by Title 46 CFR, 56.60-1.1This specification is under the jurisdiction of ASTM Committee F25 on Shipsand Marine Technology and is the direct responsibility of Subcommittee F25.11 onMachine
12、ry and Piping Systems.Current edition approved March 1, 2018. Published April 2018. Originallyapproved in 1986. Last previous edition approved in 2011 as F994 86 (2011).DOI: 10.1520/F0994-86R18.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at s
13、erviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http:/www.ansi.org.4Available from DLA Document Services, B
14、uilding 4/D, 700 Robbins Ave.,Philadelphia, PA 19111-5094, http:/quicksearch.dla.mil.5Available from Department of the Navy, Commander Naval Sea SystemsCommand, 1333 Isaac Hull Avenue, SE, Washington Navy Yard, DC 20376,http:/www.navsea.navy.mil.6Available from American Bureau of Shipping (ABS), ABS
15、 Plaza, 16855Northchase Dr., Houston, TX 77060, http:/www.eagle.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 principles on standardization e
16、stablished 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.14.2 Doubler and insert plates shall be of material withphysical properties equal to or better than th
17、e reinforced shellplate.4.3 Reinforcing sleeve material shall depend on the penetra-tion pipe size:Penetration Pipe Size Sleeve MaterialNPS 1 through NPS 10 Seamless Steel Tubing, SpecificationA519.NPS 12 through NPS 18 Machined seamless steel pipe of samematerial as penetration pipe.NPS 20 through
18、NPS 24 Steel flatbar or plate of same or superiormaterial as hull plate, manufactured witha full penetration, longitudinal butt weld.5. General Requirements5.1 Overboard discharges shall be combined to the maxi-mum extent practicable to minimize the number of shellpenetrations.5.2 A minimum of 3 in.
19、 shall be maintained between theedge of penetrations and shell plate welding seams. Penetra-tions shall be located so as to provide sufficient space forwelding between the penetration and shell longitudinals,stiffeners, or other structural members.5.3 Shell penetrations located above the light load
20、line shallbe clear of side ports, accommodation ladders, lifeboat-handling areas, or other areas where discharge overboard isdetrimental to normal operation of the vessel or would create anuisance for personnel or other vessels in the area.5.4 Overboard discharges shall be located to minimizerecircu
21、lation into suction seachests.5.5 Shell penetrations shall be located outside of cathodicprotection areas.5.6 Unfavorable flow characteristics may result when smalldiameter, extreme schedule penetration pipe is used in accor-dance with Table 1. In this case, minimum allowable schedulepenetration pip
22、e, with necessary reinforcement as specified inTables 2-6, is suggested.5.7 Penetration pipe extension past the shell plate shall beequal to the pipe wall thickness but not more than38 in.6. Welding6.1 Welding shall be in accordance with Figs. 1-6 (see alsoANSI B36.10).6.2 Weld quality shall be in a
23、ccordance with AmericanBureau of Shipping standards.6.3 Fillet welds shall be equal to the penetration pipe wallthickness but not more than38 in.6.4 Weld quality for military vessels shall be in accordancewith MIL-STD-1689.7. Workmanship, Finish, and Appearance7.1 Surface areas, corners, and dischar
24、ge pipe ends shall befree of burrs and sharp edges.8. Keywords8.1 discharge hull penetration; hull penetration; marinetechnology; penetration connection; ships; system pipingTABLE 1 Pipe Schedule for Type 1 Penetrations,NPS 1 Through NPS 24APene-trationPipeSize,NPSShell Plating Thickness (T), in.141
25、2583478 1118 114 138 1121 80 80 160 160 160 160 XXS XXS XXS114 80 160 160 160 XXS XXS XXS XXS XXS112 80 160 160 160 160 XXS XXS XXS XXS2 80 160 160 160 160 160 160 XXS XXS212 80 80 160 160 160 160 160 XXS XXS3 80 80 160 160 160 160 160 160 XXS4 80 80 120 120 120 120 160 160 1605 80 80 80 120 120 120
26、 120 160 1606 80 80 80 120 120 120 120 120 1608 80 80 80 80 100 100 100 120 12010 60 60 60 80 80 100 100 100 12012 60 60 60 80 80 80 100 100 10014 60 60 60 80 80 80 80 100 10016 40 60 60 60 80 80 80 80 10018 40 40 60 60 60 80 80 80 8020 40 40 60 60 60 60 80 80 8022 40 40 60 60 60 60 80 80 8024 40 40
27、 60 60 60 60 60 60 80ASee Fig. 1.F994 86 (2018)2TABLE 2 Doubler Plate Dimensions (TD D) Type II Penetration, NPS 1 Through NPS 24 (in. in.)APenetratingPipe Size,NPS, SCHShell Plating Thickness (T), in.14 to12583478 1118 114 138 1121, 8014 538 512 558 534 534 5 15 15 114 5114,8014 638 612 658 634 634
28、 6 16 16 114 6112,8014 638 612 658 634 634 6 16 16 114 62, 8014 738 712 758 734 734 7 17 17 114 7212,8014 738 712 758 734 734 7 17 17 114 73, 8014 838 812 858 834 834 8 18 18 114 84, 8014 938 912 958 934 934 9 19 19 114 95, 8014 1038 1012 1058 1034 1034 10 110 110 114 106, 8014 1238 1212 1258 1234 1
29、234 12 112 112 114 128, 8014 1438 1412 1458 1434 1434 14 114 114 114 1410, 6014 1638 1612 1658 1634 1634 16 116 116 114 1612, 6014 1838 1812 1858 1834 1834 18 118 118 114 1814, 6014 2038 2012 2058 2034 2034 20 120 120 114 2016, 4014 2238 2212 2258 2234 2234 23 122 123 114 2418, 4014 2438 2412 2458 2
30、434 2434 25 124 125 114 2820, 4014 2638 2612 2658 2634 2634 27 126 127 114 3022, 6014 2838 2812 2858 2834 2834 29 128 129 114 3224, 4014 3038 3012 3058 3034 3034 31 130 131 114 33ASee Fig. 2 and Fig. 3.TABLE 3 Insert Plate Dimensions (TI D), NPS 1 Through NPS 24 (in. in.)APenetratingPipe Size,NPS, S
31、CHShell Plating Thickness (T), in.14 to12583478 1118 114 138 1121, 80 1 8 118 814 114 812 138 834 112 9 158 914 134 912 178 934 210114,80 1814 118 812 114 834 138 9 112 914 158 912 134 10 178 1014 21012112,80 1834 118 834 114 9 138 914 112 912 158 10 134 10 178 1012 210342, 80 1 9 118 914 114 912 13
32、8 934 112 10 158 1014 134 1012 178 11 2 11212,80 110 118 10 114 10 138 1014 112 1012 158 1034 134 11 178 1114 211123, 80 1 1012 118 1034 114 1034 138 11 112 1114 158 1112 134 1134 178 12 2 12144, 80 1 11 118 1112 114 1134 138 12 112 1214 158 1212 134 1234 178 13 2 13145, 80 1 12 118 1212 114 13 138
33、13 112 1314 158 1312 134 1334 178 14 218 156, 80 1 13 118 1312 114 14 138 14 112 1414 158 1412 134 1434 178 15 218 16148, 80 1 14 118 1412 114 15 138 16 112 1614 158 1612 134 17 2 18 212 191410, 60 1 16 118 17 114 18 138 1814 112 1812 158 1834 22034 238 2234 214 2312, 60 1 18 118 1812 114 19 138 20
34、112 2012 158 2034 22234 238 2434 212 2514, 60 1 21 118 21 114 21 138 2112 112 2134 158 22 2 24 238 26 258 253416, 40 1 23 118 23 114 2314 138 2414 134 2612 218 2712 238 2812 258 2934 278 3118, 40 1 25 118 25 114 2514 138 2512 134 2712 218 2912 238 3012 258 3134 278 3320, 40 1 27 118 2714 114 2714 13
35、8 2814 178 3012 218 3112 238 3212 258 3334 278 3522, 60 1 29 118 29 114 29 138 30 178 30 218 30 238 3312 258 3412 278 3624, 40 1 31 118 31 114 3114 138 3112 178 3412 218 3512 238 3612 258 38 278 39ASee Fig. 4 and Fig. 5.F994 86 (2018)3TABLE 4 Reinforcing Sleeve Dimensions, NPS 1 Through NPS 5 (Seaml
36、ess Steel Tubing)APenetrationPipe Size,NPS, SCHSleeve Size, in.Shell Plating Thickness (T), in.14 12583478 1118 114 138 1121, 80 outer diameterwall thicknesslength17814134178141781781422183821821838214218382382183821221838258218383114, 80 outer diameterwall thicknesslength214932134214932178214932221
37、4932218358214358238358212358258358234112, 80 outer diameterwall thicknesslength212932134212932178212932231221831221431223831221231223431232, 80 outer diameterwall thicknesslength318516134318516178318516214318516212434214434238434212434258434234212, 80 outer diameterwall thicknesslength41213441217841
38、2241221841221241223441234123124123583, 80 outer diameterwall thicknesslength41271613441271617841271621441271623441271634127163384581231245812334458124184, 80 outer diameterwall thicknesslength614131613461413161786141316261413162186141316212614131623461413163614131631461413163125, 80 outer diameterwa
39、ll thicknesslength658122758127581275812187581212813162128581122128581122348581123ASee Fig. 6.TABLE 5 Reinforcing Sleeve Dimensions, NPS 6 Through NPS 12 (Machined Seamless Steel Tube)APenetrationPipe Size,NPS, SCHSleeve Size, in.Shell Plating Thickness (T), in.14 12583478 1118 114 138 1126, 80 tube
40、outer diameter 812 812 812 812 99 912 912 10machined inner diameter 634 634 634 634 634 634 634 634 634length 134 2214 212 212 234 234 338, 80 tube outer diameter 10 10 1012 1012 11 11 1112 1112 12machined inner diameter 834 834 834 834 834 834 834 834 834length 214 234 234 3314 314 312 31210, 60 tu
41、be outer diameter 12 12 1212 1234 1338 1338 1338 14 14machined inner diameter 1078 1078 1078 1078 1078 1078 1078 1078 1078length 234 314 314 314 314 314 334 334 412, 60 tube outer diameter 14 1438 1438 15 15 16 16 16 16machined inner diameter 1278 1278 1278 1278 1278 1278 1278 1278 1278length 3 3 31
42、2 312 334 314 312 334 414ASee Fig. 6.F994 86 (2018)4TABLE 6 Reinforcing Sleeve Dimensions, NPS 14 Through NPS 24 (Rolled Steel Flatbar or Plate)APenetrationPipe Size,NPS, SCHSleeve Size, in.Shell Plating Thickness (T), in.14 12583478 1118 114 138 11214, 60 inner diameterwall thicknesslength143163421
43、214316343181431634334143161334143161414316114414316114414143161124141431611241216, 40 inner diameterwall thicknesslength16316342341631634312163163441816316141816316141216316114412163161144341631611243416316112518, 40 inner diameterwall thicknesslength1831634318316343341831634412183161412183161434183
44、161144341831611451831611251831611251420, 40 inner diameterwall thicknesslength2031634312203163442031634520316152031615142031611451420316114514203161125142031611251222, 60 inner diameterwall thicknesslength22316343122231634412223163451422316151422316151222316114512223161145342231611253422316112624, 4
45、0 inner diameterwall thicknesslength2431634334243163443424316345122431615122431615342431611453424316114624316112624316112614ASee Fig. 6.FIG. 1 Type I: PenetrationFIG. 2 Type II, Class 1 Penetration: Inboard Doubler PlateF994 86 (2018)5FIG. 3 Type II, Class 2 Penetration: Outboard Doubler PlateFIG. 4
46、 Type III, Class 1 Penetration: Single-Bevel Insert PlateF994 86 (2018)6ASTM 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
