1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 1254-4:1998 Incorpo
2、rating Amendment No. 1 The European Standard EN 1254-4:1998 has the status of a British Standard ICS 23.040.40 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Copper and copper alloys Plumbing fittings Part 4: Fittings combining other end connections with capillary or compress
3、ion endsThis 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 June 1998 BSI 11-1999 ISBN 0 580 29441 2 BS EN 1254-4:1998 Amendments issued since publication Amd. No. Date C
4、omments 10750 November 1999 Correction to Figure 5 National foreword This British Standard is the English language version of EN 1254-4:1998 including Corrigendum August 1999. The UK participation in its preparation was entrusted by Technical Committee NFE/34, Copper and copper alloys, to Subcommitt
5、ee NFE/34/3, Copper and copper alloy fittings for tube and pipe, which has the responsibility to: aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related inte
6、rnational and European developments and promulgate them in the UK. A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be f
7、ound in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standa
8、rds are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 10, an inside back cover and a back cover. The
9、 BSI copyright notice displayed in this document indicates when the document was last issued. Sidelining in this document indicates the most recent changes by amendment.CEN European Committee for Standardization Comite Europe en de Normalisation Europa isches Komitee fu r Normung Central Secretariat
10、: rue de Stassart 36, B-1050 Brussels 1998 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1254-4:1998 E EUROPEAN STANDARD EN 1254-4 NORME EUROPE ENNE EUROPA ISCHE NORM January 1998 ICS 23.040.40 incorporating Corrigendum August 19
11、99 Descriptors: Copper tubes, plastics tubes, copper, copper alloys, pipe fittings, screwed connections, flanged unions, joining, dimensions, dimensional tolerances English version Copper and copper alloys Plumbing fittings Part 4: Fittings combining other end connections with capillary or compressi
12、on ends Cuivre et alliages de cuivre Raccords Partie 4: Raccords combinant des assemblages par capillarite ou par compression a dautres types dassemblage Kupfer und Kupferlegierungen Fittings Teil 4: Fittings zum Verbinden anderer Ausfu hrungen von Rohrenden mit Kapillarlo tverbindungen oder Klemmve
13、rbindungen This European Standard was approved by CEN on 24 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-date lists and bibliog
14、raphical 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 the responsibility of a
15、 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, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norw
16、ay, Portugal, Spain, Sweden, Switzerland and United Kingdom.Page 2 EN 1254-4:1998 BSI 11-1999 Foreword This European Standard has been prepared by Technical Committee CEN/TC 133, Copper and copper alloys, the Secretariat of which is held by DIN. This European Standard shall be given the status of a
17、national standard, either by publication of an identical text or by endorsement, at the latest by July 1998, and conflicting national standards shall be withdrawn at the latest by July 1998. Within its programme of work, Technical Committee CEN/TC 133 requested CEN/TC 133/WG 8, Copper and copper all
18、oy fittings, to prepare the following standard: EN 1254-4, Copper and copper alloys Plumbing fittings Part 4: Fittings combining other end connections with capillary or compression ends. This standard is one of five parts for copper and copper alloy fittings for joining copper tubes or plastics pipe
19、s. The other four parts of the standard are: EN 1254-1, Copper and copper alloys Plumbing fittings Part 1: Fittings with ends for capillary soldering or capillary brazing to copper tubes. EN 1254-2, Copper and copper alloys Plumbing fittings Part 2: Fittings with compression ends for use with copper
20、 tubes. EN 1254-3, Copper and copper alloys Plumbing fittings Part 3: Fittings with compression ends for use with plastics pipes. EN 1254-5, Copper and copper alloys Plumbing fittings Part 5: Fittings with short ends for capillary brazing to copper tubes. It is recommended that fittings manufactured
21、 to this standard are certified as conforming to the requirements of this standard, based on third party testing and continuing surveillance, which should be coupled with an assessment of a suppliers quality system against the appropriate standard, i.e. EN ISO 9001 or EN ISO 9002. In respect of pote
22、ntial adverse effects on the quality of water intended for human consumption caused by the product covered by this standard: 1) this standard provides no information as to whether the product may be used without restriction in any of the Member States of the EU or EFTA; 2) it should be noted that, w
23、hile awaiting the adoption of verifiable European criteria, existing national regulations concerning the use and/or the characteristics of this product remain in force. The attention of the user of this standard is drawn to the fact that national or local regulations or practices might restrict the
24、choice of dimensions and threads in the application of products conforming to this standard. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Fi
25、nland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Contents Page Foreword 2 1 Scope 3 2 Normative references 3 3 Definitions 3 3.1 plumbing fitting 3 3.2 capillary end 3 3.3 compression end 3 3.4 scre
26、wed union connector 3 3.5 nominal diameter 3 4 Requirements 3 4.1 Materials and tests 3 4.2 Screwed union connections 3 4.3 Thread dimensions 4 4.4 Tightening systems 4 4.5 Minimum wall thickness 4 4.6 Minimum bore for unequal-ended fittings 4 4.7 Minimum outside diameter of sealing face 4 4.8 Flang
27、e-type fittings 4 Annex A (informative) Bibliography 10Page 3 EN 1254-4:1998 BSI 11-1999 1 Scope This European Standard specifies materials, assembly dimensions and tolerances and test requirements for fittings of copper and copper alloys with or without plating or coating. Maximum permissible tempe
28、ratures and pressures are also established. This part of EN 1254 specifies connection end dimensions for fittings combining capillary and/or compression ends with other types of connecting ends. 2 Normative references This European Standard incorporates, by dated or undated reference, provisions fro
29、m other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European standard only when incorporated in it by amendme
30、nt or revision. For undated references, the latest edition of the publication referred to applies. EN 1254-1, Copper and copper alloys Plumbing fittings Part 1: Fittings with ends for capillary soldering or capillary brazing to copper tubes. EN 1254-2, Copper and copper alloys Plumbing fittings Part
31、 2: Fittings with compression ends for use with copper tubes. EN 1254-3, Copper and copper alloys Plumbing fittings Part 3: Fittings with compression ends for use with plastics pipes. EN 1254-5, Copper and copper alloys Plumbing fittings Part 5: Fittings with short ends for capillary brazing to copp
32、er tubes. ISO 7-1, Pipe threads where pressure-tight joints are made on the threads Part 1: Dimensions, tolerances and designation. ISO 7-2, Pipe threads where pressure-tight joints are made on the threads Part 2: Verification by means of limit gauges. ISO 228-1, Pipe threads where pressure-tight jo
33、ints are not made on the threads Part 1: Dimensions, tolerances and designation. ISO 228-2, Pipe threads where pressure-tight joints are not made on the threads Part 2: Verification by means of limit gauges. NOTE Informative references to documents used in the preparation of this standard, and cited
34、 at the appropriate places in the text, are listed in a bibliography, see annex A. 3 Definitions For the purposes of this standard, the following definitions apply: 3.1 plumbing fitting device used in a tube system for the purpose of connecting the tubes either to each other or to a component part o
35、f a system 3.2 capillary end end in which the joint is made by the flow of solder or brazing alloy by capillary action into the annular space 3.3 compression end end in which the joint is made by the compression of a ring or sleeve on the outside wall of the tube 3.4 screwed union connector coupling
36、 which enables disconnection without disturbance of other pipe sections NOTE 1 Screwed union connectors can be sphere to cone, cone to cone, cone to radius or flat face with a sealing member. NOTE 2 Component parts of screwed union connectors from different manufacturers should not be regarded as in
37、terchangeable. 3.5 nominal diameter nominal diameter of the fitting end expressed as the nominal outside diameter of the connecting tube 4 Requirements 4.1 Materials and tests The relevant requirements specified in EN 1254-1, EN 1254-2, EN 1254-3 and EN 1254-5 apply to the complete fitting. 4.2 Scre
38、wed union connections Screwed union joints, when assembled in accordance with the manufacturers instructions, shall be capable of meeting the appropriate pressure test requirements for the respective end connections to relevant tube or pipe material and shall be capable of disconnection and reconnec
39、tion, when the joint shall again be capable of meeting the pressure test requirements.Page 4 EN 1254-4:1998 BSI 11-1999 4.3 Thread dimensions Internal parallel threads shall be in accordance with Table 2 or Table 3 of this part of this standard. External taper threads shall be in accordance with Tab
40、le 4 or Table 5 of this part of this standard. External parallel threads shall be in accordance with Table 6 of this part of this standard. Thread details not specified in this part of this standard shall conform to ISO 7 or ISO 228. NOTE Alternative thread lengths or gauging systems should be agree
41、d between the manufacturer and the purchaser. 4.4 Tightening systems Shapes for transmitting tightening torques are required on nuts and straight bodies. 4.5 Minimum wall thickness The minimum wall thickness at threaded portions of fittings shall be in accordance with Table 1. 4.6 Minimum bore for u
42、nequal-ended fittings Minimum bores quoted in this part of the standard shall not restrict other outlets. 4.7 Minimum outside diameter of sealing face If a sealing face is provided on the fitting then the minimum outside diameter of the face shall be in accordance with dimension C given in Table 6.
43、4.8 Flange-type fittings Loose flanges and fasteners on flange-type fittings may be of ferrous materials unless otherwise specified. NOTE Ferrous flanges and fasteners should be protected against corrosion in accordance with the customers specification. Table 1 Minimum wall thickness Thread designat
44、ion Minimum wall thickness of fitting N Wrought coppers and copper alloys Cast coppers and copper alloys mm mm 1,0 1,0 1,0 1,0 1,1 1,1 1,2 1,2 1,4 1,5 1 1,5 1,8 1 1,6 1,8 1 1,8 2,0 2 1,9 2,3 2 2,0 2,4 3 2,3 2,6 4 2,8 2,9Page 5 EN 1254-4:1998 BSI 11-1999 a) b) N For minimum wall thickness see Table 1
45、 * (Optional bead) Figure 1 Internal ISO 7 parallel threads Table 2 Internal ISO 7 parallel threads Dimensions in millimetres AB DE 1) F 2) G Thread designation Wrought coppers and copper alloys Cast coppers and copper alloys (Optional bead) min. min. min. max. min. min. Rp 7,4 11,6 11,8 0,9 14,3 4,
46、5 Rp 11,0 15,2 15,4 1,3 18,2 7,0 Rp 11,4 19,1 19,1 1,3 22,0 7,0 Rp 15,0 23,8 23,8 1,8 26,7 9,0 Rp 16,3 29,3 29,7 1,8 33,5 10,0 Rp 1 19,1 36,3 36,9 2,3 40,9 11,5 Rp 1 21,4 45,6 46,2 2,3 49,0 13,5 Rp 1 21,4 51,4 52,0 2,3 56,6 13,5 Rp 2 25,7 63,7 64,3 2,3 69,4 17,0 Rp 2 30,2 80,4 80,8 2,3 86,2 18,5 Rp
47、3 33,3 93,5 94,0 2,3 98,0 21,0 Rp 4 39,3 120,0 121,0 2,3 120,0 26,0 1) At the option of the manufacturer, as an alternative to chamfer E, the first thread may be removed. 2) If required for a sealing face, face X to be smoothly machined at right angles to the thread axis. NOTE Refer to ISO 7 for thr
48、ead details not listed in this table.Page 6 EN 1254-4:1998 BSI 11-1999 See Table 3, note 1 a) b) N For minimum wall thickness see Table 1 * (Optional bead) Figure 2 Internal ISO 228 parallel threads Table 3 Internal ISO 228 parallel threads Dimensions in millimetres AB DE 1) F 2) G Thread designatio
49、n Wrought coppers and copper alloys Cast coppers and copper alloys (Optional bead) min. min. min. max. min. min. G 5,6 11,6 11,8 0,9 14,3 4,5 G 8,0 15,2 15,4 1,3 18,2 7,0 G 8,5 19,1 19,1 1,3 22,0 7,0 G 10,5 23,8 23,8 1,8 26,7 9,0 G 12,0 29,3 29,7 1,8 33,5 10,0 G 1 13,5 36,3 36,9 2,3 40,9 11,5 G1 15,5 45,6 46,2 2,3 49,0 13,5 G1 15,5 51,4 52,0 2,3 56,6 13,5 G 2 19,0 63,7 64,3 2,3 69,4 17,0 G2 20,0 80,4 80,8 2,3 86,2 18,5 G 3 21,0 93,5 94,0 2,3 98,0 20,0 G
