1、BRITISH STANDARD BS EN ISO 9093-1:1998 Incorporating Amendment No. 1 to BS 7828-1:1995. (Renumbers the BS as BS EN ISO 9093-1:1998) Small craft Seacocks and through-hull fittings Part 1: Metallic The European Standard EN ISO 9093-1:1997 has the status of a British Standard ICS 47.080BSENISO9093-1:19
2、98 This British Standard, having been prepared under the direction of the Engineering Sector Board, was published under the authority of the Standards Board and comes into effect on 15 October 1995 BSI 05-1999 The following BSI references relate to the work on this standard: Committee reference GME/
3、33 Draft for comment 92/70815 DC ISBN 0 580 24715 5 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee GME/33, Fluid power systems and components, upon which the following bodies were represented: British Canoe Manufacturers
4、 Association British Marine Industries Federation British Nautical Instrument Trade Association British Waterways Board Consumer Policy Committee of BSI Department of Trade and Industry Department of Trade and Industry (Standards Policy Unit) Federation of Wire Rope Manufacturers of Great Britain Fi
5、re Extinguishing Trades Association Home Office Lloyds Register of Shipping Marine Safety Agency National Rivers Authority Personal Watercraft Association Royal Ocean Racing Club Royal Society for the Prevention of Accidents Royal Yachting Association Coopted members Amendments issued since publicat
6、ion Amd. No. Date Comments 10000 May 1998 Adoption of a European StandardBSENISO9093-1:1998 BSI 05-1999 i Contents Page Committees responsible Inside front cover National foreword ii Foreword 2 1 Scope 3 2 Normative references 3 3 Definitions 3 4 Corrosion resistance 3 5 Through-hull fittings for wa
7、ter 3 6 Seacocks Design requirements 4 7 Hose fittings 6 8 Water scoops and outboard water strainers 6 9 Installation 7 Annex ZA (informative) Clauses of this European Standard addressing essential requirements or other provisions of EU Directives 8 Figure 1 Seacock 6 Figure 2 Example of hose fittin
8、gs 7 Table 1 Examples of through-hull fittings 5 Table 2 Seacock minimum thread lengths 6 Table ZA.1 Correspondence between this European Standard andEUDirectives 8 List of references Inside back coverBSENISO9093-1:1998 ii BSI 05-1999 National foreword This British Standard has been prepared by Tech
9、nical Committee GME/33. It is the English language version of EN ISO9093-1:1997 Small craft Seacocks and through-hull fittings Part 1: Metallic, published by the European Committee for Standardization (CEN). It is identical with ISO9093-1:1994(E) Small craft Seacocks and through-hull fittings Part 1
10、: Metallic, published by the International Organization for Standardization (ISO). A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itsel
11、f confer immunity from legal obligations. Cross-references International standard Corresponding British Standard ISO 7-1:1994 BS 21:1985 Specification for pipe threads for tubes and fittings where pressure-tight joints are made on the threads (metric dimensions) (Technically equivalent) ISO 228-1:19
12、94 BS 2779:1986 Specification for pipe threads for tubes and fittings where pressure-tight joints are not made on the threads (metric dimensions) (Technically equivalent) Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN ISO title page, pages2 to 8
13、, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on theinside front cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 9093-1 December 1997 ICS 47.080.00 De
14、scriptors: SEE ISO document English version Small craft Seacocks and through-hull fittings Part 1: Metallic (ISO 9093-1:1994) Navires de plaisance Vannes de coque et passe-coques Partie 1: Construction mtallique (ISO 9093-1:1994) Kleine Wasserfahrzeuge Seeventile und Auenhautdurchfhrungen Teil 1: Me
15、tallische Teile (ISO 9093-1:1994) This European Standard was approved by CEN on 10 November 1997. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to
16、-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under
17、the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, CzechRepublic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembo
18、urg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1997 CEN All rights of exploitation in any form and by
19、any means reserved worldwide for CEN national Members. Ref. No. EN ISO 9093-1:1997 EENISO9093-1:1997 BSI 05-1999 2 Foreword The text of the International Standard from ISO/TC 188, “Small craft”, of the International Organization for Standardization (ISO) has been taken over as a European Standard by
20、 CEN/CS. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 1998, and conflicting national standards shall be withdrawn at the latest by June 1998. This European Standard has been prepared under
21、 a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive(s), seeinformativeAnnex ZA, which is an integral part of this standard. According to CEN/CENELEC Internal Regulations
22、, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, CzechRepublic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United K
23、ingdom. Endorsement notice The text of the International Standard ISO9093-1:1994 has been approved by CEN as a European Standard without any modification.ISO9093-1:1994(E) BSI 05-1999 3 1 Scope This part of ISO 9093 specifies requirements for metallic through-hull fittings, seacocks and hose fitting
24、s that specifically form part of water intake and discharge lines, and for wet exhaust outlets used in small craft of up to 24m length of hull. Through-hull fittings for other purposes are not covered. This part of ISO9093 applies to seacocks and through-hull fittings with cylindrical pipe threads i
25、n accordance with ISO 228-1, and with joints for conical pipe threads in accordance with ISO 7-1, with nominal diameters of 1/4in, 3/8in, 1/2in, 3/4in, 1in, 1 1/4in, 1 1/2in, 2in, 2 1/2in, 3in or 4in. NOTE 1The reasons for developing this part of ISO9093 are that detail dimensions of components of w
26、ater intake and discharge lines, and wet exhaust outlets passing through a craft hull differ considerably, thus limiting the interchangeability of these parts. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this part
27、of ISO9093. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this part of ISO9093 are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IE
28、C and ISO maintain registers of currently valid International Standards. ISO 7-1:1994, Pipe threads where pressure-tight joints are made on the threads Part1:Dimensions, tolerances and designation. ISO 228-1:1994, Pipe threads where pressure-tight joints are not made on the threads Part1:Dimensions,
29、 tolerances and designation. 3 Definitions For the purposes of this part of ISO9093, the following definitions apply. 3.1 through-hull fitting any fitting designed to permit passage of liquids or gases through the hull 3.2 seacock any valve of the ball, cylinder, plug, gate or butterfly type directl
30、y fitted to a hull or a through-hull fitting 3.3 corrosion-resistant material used for a fitting which, within a service time of five years, does not display any defect that will impair tightness, strength or function 3.4 protection against corrosion any metallic or non-metallic sheathing or coating
31、 on materials that are not corrosion-resistant such that the fitting within a service time of five years does not display any defect that will impair tightness, strength or function 3.5 readily accessible capable of being reached for operation, inspection or maintenance without removal of any craft
32、structure or use of any tools or removal of any item of portable equipment stowed in places intended for storage of portable equipment such as lockers, drawers or shelves 4 Corrosion resistance 4.1 Selection of materials The materials used shall be corrosion-resistant or shall have protection agains
33、t corrosion, taking into account the various and changing media that pass through the fitting (for example fresh, salt or brackish water with impurities; waste water from toilet systems or holding tanks). 4.2 Material combinations The combination of different materials shall take into consideration
34、the possibility of galvanic action. Materials in contact with each other shall be galvanically compatible and shall not prevent the device from acting as intended. 4.3 Corrosion prevention Materials that have no adequate corrosion resistance in the environment they are used in or that will act galva
35、nically with others used in the system may be used if they are isolated. Fastening elements such as screws shall not act galvanically with either of the materials they fasten in a way that the strength of the through-hull fittings or its tightness are impaired. Non-ferrous metals other than aluminiu
36、m alloys shall not be used when aluminium is incorporated in the system. 5 Through-hull fittings for water 5.1 Types Some examples of through-hull fittings covered by this part of ISO9093 are given inTable 1. Other solutions are acceptable if comparable strength and tightness are achieved.ISO9093-1:
37、1994(E) 4 BSI 05-1999 5.2 General design requirements The through-hull fitting shall present a secure, lasting and watertight connection that cannot be dislodged by outside forces due to operation of the fitting and components attached to it, e.g.a seacock. The area under and immediately around the
38、through-hull fitting shall have a mechanical strength in excess of the hull itself. 5.3 Detail design requirements 5.3.1 Stem The stem length shall take into account the varying hull thicknesses, depending on the hull material and construction. The stem length shall be such that after screwing the f
39、lange nut down (if fitted), the minimum remaining thread length shall be at least 1,5 times the necessary thread length specified inTable 2. The wall thickness of the stem shall be such as to ensure that the remaining strength after machining this part is adequate for the torque during installation
40、and use of the fitting. 5.3.2 Flange diameter The diameter of the flange shall not be less than that of the flanged nut or counterplate. 5.3.3 Finish The surface of the flange, nut or counterplate shall not present a sharp edge towards the hull. Edges shall be rounded or chamfered. 6 Seacocks Design
41、 requirements The seacock shall be so designed as to permit positive operation under any condition likely to be encountered under normal service conditions; a visual check of the open and closed position. The minimum threaded length of the attachment of through-hull fittings, hose fittings and other
42、 connecting parts shall comply withTable 2 (seealsoFigure 1).ISO9093-1:1994(E) BSI 05-1999 5 Table 1 Examples of through-hull fittings No. Description Illustration 1 Fittings with a flange outside and a flanged nut inside, with the stem threaded, where tightness is achieved by screwing the flange do
43、wn. 2 Fittings as under 1, but with a countersunk outside flange, forming a flat surface with the outside craft hull. 3 Fittings as under 1, where the end of the stem forms a hose fitting. 4 Fittings with a flange outside where the flange is fastened to the hull by screws with nuts, or screws with n
44、uts and an internal flange. 5 Fittings with a flange inside where the flange is fastened to the hull by screws with nuts, or screws with nuts and an external flange. 6 Fitting consisting of a pipe or stud welded to the hull.ISO9093-1:1994(E) 6 BSI 05-1999 Table 2 Seacock minimum thread lengths The l
45、ength of the handle and the clear distance between handle and intake and discharge line shall be sufficient to allow for easy operation. The design of the seacock assembly shall be such as to ensure that no part may come loose even under severe service conditions. Seacocks shall be either directly f
46、itted to the hull or a through-hull fitting. 7 Hose fittings 7.1 Design requirements The hose fitting end may show the following configurations: ribbed or serrated (all nominal sizes); plain pipe end with nominal size 1 1/4 in and above. The clamping length, L (seeFigure 2) shall allow for double cl
47、amp fastening of the hose and shall be not less than 25 mm for nominal sizes 1 in and below; 35 mm for nominal sizes 1 1/4 in and above. The end of the hose fitting shall be rounded or chamfered. 7.2 Hose connection Hoses shall be fastened by double clamps where the centreline of the through-hull fi
48、tting is lower than 300 mm (sailboats and motorsailers), or 150 mm (motorboats) above the static waterline in the fully loaded condition. Double clamps shall be fitted in any case if plain pipe ends are used. Metallic hose clamps shall be made of stainless steel, type Cr18 Ni8 or higher corrosion re
49、sistance property and they shall be reusable. Clamps depending on spring tension shall not be used. Clamps shall be fastened to the plain or serrated end of the stem. 8 Water scoops and outboard water strainers Water intake connections may be fitted with outboard strainers and/or water scoops. Where cleaning of the intake piping and through-hull connection cannot be accomplished by other means, outboard strainers and/or water scoops shall be removable. Nominal diameter, Minimum length of thread D nom L 1 in mm G
