1、Designation: F994 86 (Reapproved 2011) 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.2. Referenced Documents2.1 ASTM Standards:2A519 Specification
5、for Seamless Carbon and Alloy SteelMechanical Tubing2.2 ANSI Standard:B36.10 Welded and Seamless Wrought Steel Pipe32.3 Military Document:MIL-STD-1689 Fabrication, Welding, and Inspection ofShips Structure42.4 Other Documents:Title 46 Code of Federal Regulations (CFR), Subchapter F,Marine Engineerin
6、g4Department of the Navy, Bureau of Ship Design Data Sheet100-15ABS Rules for Building and Classing Steel Vessels63. Classification3.1 Type INonreinforced penetrations. Table 1 providesminimum schedules for the penetration pipe. See Fig. 1 fordetails of the penetration.3.2 Type IIDoubler plate-reinf
7、orced penetrations. Table 2provides minimum dimensions for doubler plates.3.2.1 Class 1Inboard doubler plates. (Fig. 2)3.2.2 Class 2Outboard doubler plates. (Fig. 3)3.3 Type IIIInsert plate-reinforced penetrations. Table 3provides minimum dimensions for insert plates.3.3.1 Class 1Single-bevel insert
8、 plates. (Fig. 4)3.3.2 Class 2Double-bevel insert plates. (Fig. 5)3.4 Type IVSleeve-reinforced penetrations. Fig. 6 detailssleeve-reinforced penetrations.3.4.1 Class 1Sleeves of nonmachined steel tube. Table 4provides minimum dimensions for nonmachined sleeves.3.4.2 Class 2Sleeves of machined steel
9、tube or pipe. Table5 provides minimum dimensions for machined sleeves.3.4.3 Class 3Sleeves of rolled steel flatbar or plate. Table6 provides minimum dimensions for rolled sleeves.4. Materials4.1 Discharge pipe shall be of an acceptable material asspecified by Title 46 CFR, 56.60-1.4.2 Doubler and in
10、sert plates shall be of material withphysical properties equal to or better than the reinforced shellplate.4.3 Reinforcing sleeve material shall depend on the penetra-tion pipe size:1This specification is under the jurisdiction of ASTM Committee F25 on Shipsand Marine Technology and is the direct re
11、sponsibility of Subcommittee F25.11 onMachinery and Piping Systems.Current edition approved April 1, 2011. Published April 2011. Originallyapproved in 1986. Last previous edition approved in 2006 as F994 86 (2006).DOI: 10.1520/F0994-86R11.2For referenced ASTM standards, visit the ASTM website, www.a
12、stm.org, orcontact ASTM Customer Service at serviceastm.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
13、.org.4Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http:/dodssp.daps.dla.mil.5Available from Department of the Navy, Naval Sea Systems Command,Washington, DC 20362.6Available from American Bureau of Shipping (ABS), ABS
14、 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 States1Penetration Pipe Size Sleeve MaterialNPS 1 through NPS 10 Seamless Steel Tubing, SpecificationA519.NPS 12 through NPS
15、18 Machined seamless steel pipe of samematerial as penetration pipe.NPS 20 through NPS 24 Steel flatbar or plate of same orsuperior material as hull plate,manufactured with a full pene-tration, longitudinal butt weld.5. General Requirements5.1 Overboard discharges shall be combined to the maxi-mum e
16、xtent practicable to minimize the number of shellpenetrations.5.2 A minimum of 3 in. 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,stiffene
17、rs, or other structural members.5.3 Shell penetrations located above the light load 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 ot
18、her vessels in the area.5.4 Overboard discharges shall be located to minimizerecirculation 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
19、in accor-dance with Table 1. In this case, minimum allowable schedulepenetration pipe, 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
20、be in accordance with Figs. 1-6 (see alsoANSI B36.10).6.2 Weld quality shall be in accordance 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-ST
21、D-1689.7. Workmanship, Finish, and Appearance7.1 Surface areas, corners, and discharge 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 Penetrati
22、ons, NPS 1 ThroughNPS 24APene-trationPipe Size,NPSShell Plating Thickness (T), in.583478 1118 1 138 11 80 80 160 160 160 160 XXS XXS XXS1 80 160 160 160 XXS XXS XXS XXS XXS1 80 160 160 160 160 XXS XXS XXS XXS2 80 160 160 160 160 160 160 XXS XXS2 80 80 160 160 160 160 160 XXS XXS3 80 80 160 160 160 1
23、60 160 160 XXS4 80 80 120 120 120 120 160 160 1605 80 80 80 120 120 120 120 160 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
24、80 8020 40 40 60 60 60 60 80 80 8022 40 40 60 60 60 60 80 80 8024 40 40 60 60 60 60 60 60 80ASee Fig. 1.F994 86 (2011)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.to583478 1118 1 138 11, 80 5
25、38 5 558 534 534 5 15 15 151, 80 638 6 658 634 634 6 16 16 161, 80 638 6 658 634 634 6 16 16 162, 80 738 7 758 734 734 7 17 17 172, 80 738 7 758 734 734 7 17 17 173, 80 838 8 858 834 834 8 18 18 184, 80 938 9 958 934 934 9 19 19 195, 80 1038 10 1058 1034 1034 10 110 110 1106, 80 1238 12 1258 1234 12
26、34 12 112 112 1128, 80 1438 14 1458 1434 1434 14 114 114 11410, 60 1638 16 1658 1634 1634 16 116 116 11612, 60 1838 18 1858 1834 1834 18 118 118 11814, 60 2038 20 2058 2034 2034 20 120 120 12016, 40 2238 22 2258 2234 2234 23 122 123 12418, 40 2438 24 2458 2434 2434 25 124 125 12820, 40 2638 26 2658
27、2634 2634 27 126 127 13022, 60 2838 28 2858 2834 2834 29 128 129 13224, 40 3038 30 3058 3034 3034 31 130 131 133ASee Fig. 2 and Fig. 3.TABLE 3 Insert Plate Dimensions (TI D), NPS 1 Through NPS 24 (in. in.)APenetratingPipe Size,NPS, SCHShell Plating Thickness (T), in.to583478 1118 1 138 11, 80 1 8 11
28、8 8 18 138 834 19 158 9 134 9 178 934 2101, 80 1 8 118 8 1834 138 9 19 158 9 134 10 178 10 2 101, 80 1 834 118 834 19 138 9 19 158 10 134 10 178 10 2 10342, 80 1 9 118 9 19 138 934 110 158 10 134 10 178 11 2 112, 80 1 10 118 10 110 138 10 1 10 158 1034 134 11 178 11 2 113, 80 1 10 118 1034 11034 138
29、 11 111 158 11 134 1134 178 12 2 124, 80 1 11 118 11 11134 138 12 112 158 12 134 1234 178 13 2 135, 80 1 12 118 12 1 13 138 13 113 158 13 134 1334 178 14 218 156, 80 1 13 118 13 1 14 138 14 114 158 14 134 1434 178 15 218 168, 80 1 14 118 14 1 15 138 16 116 158 16 134 17 2 18 21910, 60 1 16 118 17 11
30、8 138 18 1 18 158 1834 22034 238 2234 22312, 60 1 18 118 18 1 19 138 20 120 158 2034 22234 238 2434 22514, 60 1 21 118 21 121 138 21 1 2134 158 22 2 24 238 26 258 253416, 40 1 23 118 23 123 138 24 134 26 218 27 238 28 258 2934 278 3118, 40 1 25 118 25 125 138 25 134 27 218 29 238 30 258 3134 278 332
31、0, 40 1 27 118 27 1 27 138 28 178 30 218 31 238 32 258 3334 278 3522, 60 1 29 118 29 129 138 30 178 30 218 30 238 33 258 34 278 3624, 40 1 31 118 31 131 138 31 178 34 218 35 238 36 258 38 278 39ASee Fig. 4 and Fig. 5.F994 86 (2011)3TABLE 4 Reinforcing Sleeve Dimensions, NPS 1 Through NPS 5 (Seamless
32、 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 thicknesslength21493213421493217821493222149
33、32218358214358238358212358258358234112, 80 outer diameterwall thicknesslength212932134212932178212932231221831221431223831221231223431232, 80 outer diameterwall thicknesslength318516134318516178318516214318516212434214434238434212434258434234212, 80 outer diameterwall thicknesslength4121344121784122
34、41221841221241223441234123124123583, 80 outer diameterwall thicknesslength41271613441271617841271621441271623441271634127163384581231245812334458124184, 80 outer diameterwall thicknesslength614131613461413161786141316261413162186141316212614131623461413163614131631461413163125, 80 outer diameterwall
35、 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.583478 1118 1 138 16, 80 tube outer diam
36、eter 8 8 8 8 9 9 9 9 10machined inner diameter 634 634 634 634 634 634 634 634 634length 134 2222234 234 338, 80 tube outer diameter 10 10 10 10 11 11 11 11 12machined inner diameter 834 834 834 834 834 834 834 834 834length 2 234 234 3 3 3 3 3 310, 60 tube outer diameter 12 12 12 1234 1338 1338 133
37、8 14 14machined inner diameter 1078 1078 1078 1078 1078 1078 1078 1078 1078length 234 3 3 3 3 3 334 334 412, 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 3 3 334 3 3 334 4ASee Fig. 6.F994 86 (2011)4TABLE 6 Reinfor
38、cing 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 thicknesslength143163421431634318143163433414316133414316141431611441431611441414316112414
39、1431611241216, 40 inner diameterwall thicknesslength16316342341631634312163163441816316141816316141216316114412163161144341631611243416316112518, 40 inner diameterwall thicknesslength1831634318316343341831634412183161412183161434183161144341831611451831611251831611251420, 40 inner diameterwall thick
40、nesslength2031634312203163442031634520316152031615142031611451420316114514203161125142031611251222, 60 inner diameterwall thicknesslength22316343122231634412223163451422316151422316151222316114512223161145342231611253422316112624, 40 inner diameterwall thicknesslength24316343342431634434243163451224
41、31615122431615342431611453424316114624316112624316112614ASee Fig. 6.FIG. 1 Type I: PenetrationFIG. 2 Type II, Class 1 Penetration: Inboard Doubler PlateF994 86 (2011)5FIG. 3 Type II, Class 2 Penetration: Outboard Doubler PlateFIG. 4 Type III, Class 1 Penetration: Single-Bevel Insert PlateF994 86 (20
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