1、Designation: F 994 86 (Reapproved 2006)An American National StandardStandard Specification forDesign and Installation of Overboard Discharge HullPenetration Connections1This standard is issued under the fixed designation F 994; the number immediately following the designation indicates the year ofor
2、iginal adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers carbon steel overboard dis-charge
3、hull 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 pr
4、esented 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:2A 519 Specificati
5、on 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 Enginee
6、ring4Department 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-re
7、inforced 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 ins
8、ert plates. (Fig. 4)3.3.2 Class 2Double-bevel insert plates. (Fig. 5)3.4 Type IVSleeve-reinforced penetrations. Fig. 6 detailssleeve-reinforced penetrations.1This specification is under the jurisdiction of ASTM Committee F25 on Shipsand Marine Technology and is the direct responsibility of Subcommit
9、tee F25.11 onMachinery and Piping Systems.Current edition approved Feb. 1, 2006. Published February 2006. Originallyapproved in 1986. Last previous edition approved in 2001 as F 994 86 (2001).2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at ser
10、viceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from American National Standards Institute, 25 W. 43rd St., 4thFloor, New York, NY 10036.4Available from Standardization Documents Order Desk, DODSSP, Bldg. 4
11、,Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098.5Available from Department of the Navy, Naval Sea Systems Command,Washington, DC 20362.6Available from American Bureau of Shipping (ABS), ABS Plaza, 16855Northchase Dr., Houston, TX 77060.TABLE 1 Pipe Schedule for Type 1 Penetrations, NPS 1 T
12、hroughNPS 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 80 160 160 160 160 160 160 X
13、XS4 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 80 8020 40 4
14、0 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. 1.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.3.4.1 Class 1Sleeves of nonmachined steel tube. Table 4provides minimum dimensions for nonmac
15、hined sleeves.3.4.2 Class 2Sleeves of machined steel tube or pipe.Table 5 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 as
16、specified by Title 46 CFR, 56.60-1.4.2 Doubler and insert 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:Penetration Pipe Size Sleeve MaterialNPS 1 through NPS 10 Seamles
17、s Steel Tubing, SpecificationA 519.NPS 12 through NPS 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 Requirements Gener
18、al 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. shall be maintained between theedge of penetrations and shell plate welding seams. Penetra-tions shall be located so as to provide sufficien
19、t space forTABLE 2 Doubler Plate Dimensions (TD3 D) Type II Penetration, NPS 1 Through NPS 24 (in. 3 in.)APenetratingPipe Size,NPS, SCHShell Plating Thickness (T), in.to583478 1118 1 138 11, 80 3 538 3 53 558 3 534 3 534 3 513 513 513 51, 80 3 638 3 63 658 3 634 3 634 3 613 613 613 61, 80 3 638 3 3
20、658 3 634 3 634 3 3 3 3 62, 80 3 738 3 73 758 3 734 3 734 3 713 713 713 72, 80 3 738 3 3 758 3 734 3 734 3 3 3 3 73, 80 3 838 3 83 858 3 834 3 834 3 813 813 813 84, 80 3 938 3 93 958 3 934 3 934 3 913 913 913 95, 80 3 1038 3 10 3 1058 3 1034 3 1034 3 10 1 3 10 1 3 10 1 3 106, 80 3 1238 3 12 3 1258 3
21、 1234 3 1234 3 12 1 3 12 1 3 12 1 3 128, 80 3 1438 3 14 3 1458 3 1434 3 1434 3 14 1 3 14 1 3 14 1 3 1410, 60 3 1638 3 16 3 1658 3 1634 3 1634 3 16 1 3 16 1 3 16 1 3 1612, 60 3 1838 3 18 3 1858 3 1834 3 1834 3 18 1 3 18 1 3 18 1 3 1814, 60 3 2038 3 20 3 2058 3 2034 3 2034 3 20 1 3 20 1 3 20 1 3 2016,
22、 40 3 2238 3 22 3 2258 3 2234 3 2234 3 23 1 3 22 1 3 23 1 3 2418, 40 3 2438 3 24 3 2458 3 2434 3 2434 3 25 1 3 24 1 3 25 1 3 2820, 40 3 2638 3 26 3 2658 3 2634 3 2634 3 27 1 3 26 1 3 27 1 3 3022, 60 3 2838 3 28 3 2858 3 2834 3 2834 3 29 1 3 28 1 3 29 1 3 3224, 40 3 3038 3 30 3 3058 3 3034 3 3034 3 3
23、1 1 3 30 1 3 31 1 3 33ASee Fig. 2 and Fig. 3.TABLE 3 Insert Plate Dimensions (TI3 D), NPS 1 Through NPS 24 (in. 3 in.)APenetratingPipe Size,NPS, SCHShell Plating Thickness (T), in.to583478 1118 1 138 11, 80 1 3 8118 3 8 1 3 8 138 3 834 1 3 9158 3 9 134 3 9 178 3 934 2 3 101, 80 1 3 8 118 3 8 1 3 834
24、 138 3 913 9 158 3 9 134 3 10 178 3 10 2 3 101, 80 1 3 834 118 3 834 1 3 9138 3 9 1 3 9 158 3 10 134 3 10 178 3 10 2 3 10342, 80 1 3 9118 3 9 1 3 9 138 3 934 1 3 10 158 3 10 134 3 10 178 3 11 2 3 112, 80 1 3 10 118 3 10 1 3 10 138 3 10 1 3 10 158 3 1034 134 3 11 178 3 11 2 3 113, 80 1 3 10 118 3 103
25、4 1 3 1034 138 3 11 1 3 11 158 3 11 134 3 1134 178 3 12 2 3 124, 80 1 3 11 118 3 11 1 3 1134 138 3 12 1 3 12 158 3 12 134 3 1234 178 3 13 2 3 135, 80 1 3 12 118 3 12 1 3 13 138 3 13 1 3 13 158 3 13 134 3 1334 178 3 14 218 3 156, 80 1 3 13 118 3 13 1 3 14 138 3 14 1 3 14 158 3 14 134 3 1434 178 3 15
26、218 3 168, 80 1 3 14 118 3 14 1 3 15 138 3 16 1 3 16 158 3 16 134 3 17 2 3 18 2 3 1910, 60 1 3 16 118 3 17 1 3 18 138 3 18 1 3 18 158 3 1834 2 3 2034 238 3 2234 2 3 2312, 60 1 3 18 118 3 18 1 3 19 138 3 20 1 3 20 158 3 2034 2 3 2234 238 3 2434 2 3 2514, 60 1 3 21 118 3 21 1 3 21 138 3 21 1 3 2134 15
27、8 3 22 2 3 24 238 3 26 258 3 253416, 40 1 3 23 118 3 23 1 3 23 138 3 24 134 3 26 218 3 27 238 3 28 258 3 2934 278 3 3118, 40 1 3 25 118 3 25 1 3 25 138 3 25 134 3 27 218 3 29 238 3 30 258 3 3134 278 3 3320, 40 1 3 27 118 3 27 1 3 27 138 3 28 178 3 30 218 3 31 238 3 32 258 3 3334 278 3 3522, 60 1 3 2
28、9 118 3 29 1 3 29 138 3 30 178 3 30 218 3 30 238 3 33 258 3 34 278 3 3624, 40 1 3 31 118 3 31 1 3 31 138 3 31 178 3 34 218 3 35 238 3 36 258 3 38 278 3 39ASee Fig. 4 and Fig. 5.F 994 86 (2006)2welding between the penetration and shell longitudinals, stiff-eners, or other structural members.5.3 Shell
29、 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 other vessels in the area.5.4 Overboard dis
30、charges 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 in accor-dance with Table 1. In this case
31、, 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 be in accordance with Figs. 1-6 (see also
32、ANSI 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-STD-1689.TABLE 4 Reinforcing Sleeve Dimensi
33、ons, NPS 1 Through NPS 5 (Seamless 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 thickness
34、length2149321342149321782149322214932218358214358238358212358258358234112 , 80 outer diameterwall thicknesslength212932134212932178212932231221831221431223831221231223431232, 80 outer diameterwall thicknesslength318516134318516178318516214318516212434214434238434212434258434234212 , 80 outer diamete
35、rwall thicknesslength412134412178412241221841221241223441234123124123583, 80 outer diameterwall thicknesslength41271613441271617841271621441271623441271634127163384581231245812334458124184, 80 outer diameterwall thicknesslength6141316134614131617861413162614131621861413162126141316234614131636141316
36、31461413163125, 80 outer diameterwall 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.583
37、478 1118 1 138 16, 80 tube outer diameter 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
38、 diameter 12 12 12 1234 1338 1338 1338 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
39、Fig. 6.F 994 86 (2006)37. 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 6 Reinforcing Sleeve
40、 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 thicknesslength14316342143163431814316343341431613341431614143161144143161144141431611241414316112412
41、16, 40 inner diameterwall thicknesslength16316342341631634312163163441816316141816316141216316114412163161144341631611243416316112518, 40 inner diameterwall thicknesslength1831634318316343341831634412183161412183161434183161144341831611451831611251831611251420, 40 inner diameterwall thicknesslength2
42、031634312203163442031634520316152031615142031611451420316114514203161125142031611251222, 60 inner diameterwall thicknesslength22316343122231634412223163451422316151422316151222316114512223161145342231611253422316112624, 40 inner diameterwall thicknesslength2431634334243163443424316345122431615122431
43、615342431611453424316114624316112624316112614ASee Fig. 6.FIG. 1 Type I: PenetrationFIG. 2 Type II, Class 1 Penetration: Inboard Doubler PlateF 994 86 (2006)4FIG. 3 Type II, Class 2 Penetration: Outboard Doubler PlateFIG. 4 Type III, Class 1 Penetration: Single-Bevel Insert PlateF 994 86 (2006)5ASTM
44、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 riskof infringement of such rights, are enti
45、rely 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 this standard or for additional standardsand
46、 should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on
47、 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 by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9
