1、STDmBSI BS EN 1254-1-ENGL 1998 = Lb24bb9 0710553 OLL m BRITISH STANDARD Copper and copper alloys - Plumbing fittings - Part 1: Fittings with ends for capillary soldering or capillary brazing to copper tubes The European Standard EN 1254-1: 1995 has the status of a British Standard ICs 23.040.40 BS E
2、N 1254-1:1998 (Incovrating Corrigendum No. 1) NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW - STD-BSI BS EN L25q-L-ENGL 1998 D Lb2YbbS 07L0554 T58 Amd. No. 10099 Com No. 1 BS EN 1254-k1998 Issue 2, July 1998 Date Text affected July 1998 Indicated by a sideline in the margin
3、National foreword This British Standard is the English language version of EN 1254-1: 1998. Together with BS EN 1254-2 it supersedes BS 8f34-21983 which is declared obsolescent. The UK participation in its prepamtion was entrusted by Technical Committee NFE/34, Copper and copper alloys, to Subcommit
4、tee NFEEW3, 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 - monitor related international and European developments and promulgate interpretation, or pr
5、oposals for change, and keep the UK interests informed; 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
6、 be found in the BSI Standards Catalogue under the section entided “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electsonic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British St
7、andards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. This British Standard, having been prepared under the direction of the Engineering Sector Board, was published under the authority of the Standards Boa
8、rd and comes into effect on 15 June 1998 O BSI 1998 ISBN O 580 29438 2 STD-BSI BS EN 1254-1-ENGL 1778 m lb2Ybb9 0710555 79Li Issue 1, July 1998 BS EN 1254-1:1998 Page Issue Page Front cover 2 1 to 10 Inside front cover 2 11 a 1 12 to 15 b blank Back cover Issue Original 2 original original O BSI 199
9、8 a * %! * STD-BSI BS EN L254-1-ENGL 1778 = lb24bb7 071055b 820 EN 1254-1 January 1998 ICs 23.040.40 Descriptors: Copper tubes, copper, copper alloys, pipe fittings, connections for welding, joining, dimensions, dimensional tolerances, tests, designation, marking English version Copper and copper al
10、loys - Plumbing fim - Part 1: Fittings with ends for capillary soldering or capillary bmzing to copper tubes Cuivre et alliages de cuivre - Raccords - Partie 1: Raccords braser par qMtk pour tubes en cuivre Kupfer und Kupferlegierungen - Fittmgs - Qdl: Kapilhltfittings fur Kupferrohre (Weich- und Ha
11、rtlten) This European Standard was approved by CEN on 24 November 1997. CEN members are bound to comply with the CENKENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteraton. Up-to-date lists and bibliographi
12、cal 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 CEN
13、member into its own language and notified to the Central Secretasiat has the same status as the officiai versions. CENmembers are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Po
14、rtugal, Spain, Sweden, Switzerland and United Kmgdom. European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels O 1998 CEN All rights of exploitation in any form and by any means reserved worldwide fo
15、r CEN national Members. Ref. No. EN 1254-1:1998 E STD-BSI BS EN 125q-l-ENGL 1778 lb24bb9 0730557 7b7 Page 2 EN 1254-1:1998 Foreword This European Standard has been prepared by Technical Committee CENAC 133, Copper and copper alloys, the Secretariat of which is held by DIN. This European Standard sha
16、 be given the status of a 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 CENR% 133 requested CENK 133WG 8,
17、 Copper and copper alloy fittings, to prepare the following standard EN 1254-1, Copper and copper alloys - Plumbing fittings -Part 1: Fittings with ends for capillary soldering or capiUary bmzng to com tubes. This standard is one of five parts for copper and copper alloy fittings for joining copper
18、tubes or plastics pipes. The other four parts of the standard are: EN 1254-2, Copper and copper alloys - Plumbing fittings -Part 2: Fittings with compression ends for use with copper tubes. EN 1254-3, Copper and copper alloys - Plumbing fittings -Part 3: Fittings with cmpsion ends for use with plast
19、ics pipes. EN 1254-4, Copper and copper provided that the fittings manufactured from them meet the functional requirements of this standard. NOTE Some of the standardized coppers and copper alloys commonly used for the manufacture of fittings are shown in Table 1. Details of registered alloys can be
20、 obtained from the CENITC 133 Secretariat. O BSI 1998 Page 4 EN 1264-1:1998 Material designation Symbol Number CU-DHP cw024A CuSn5Zn5Pb5C CC491K Table 1 - Examples of commonly used materials Standard prEN 12449 prEN 1982 CuZn36PbsAs I CW602N I EN 12164 I I CuZn39Pb3 I CW614N I EN 12164 I CuZn33Pb2-C
21、 I cc75os I prEN 1982 CuZnl5As-C I cc76os I prEN 1982 NOTE These examples do not constitute an exhaustive list 4.2.2 Restrictions in the choice of materials Cu-El“ (CWOO4A) is a permitted material only for integrai solder ring fittings and shall not be used for other types of capillary fittings. Lea
22、ded solders shall not be used for manufacture of inkgrai solder ring fittings. 4.3 Dimensions and tolerances 4.3.1 %lerances on diameters The standardized nominal dimensions, diameten and their tolerances are given in pable 2. The socket and male end tolerances on diameter shall be in accordance wit
23、h Mie 2, which shall be verified by the use of gauges shown in Figures 5 and 6 and Wles 7 and 8. NOTE 1 Tolerances in accordance with Table 2 and the use of gauges in accordance with Tables 7 and 8 will ensure the distribution of solder or brazing doy throughout the joint and will allow for the alig
24、nment of the male end of a fitting or the free end of a tube in the socket. NOTE 2 When capillary fittings are used for soldering or brazing to copper tubes, the ends of the tubes should be sized to the outside diameter dimensions specified in hble 2 for a length not less than the length of engageme
25、nt of the fitting. NOTE 3 Socket and male ends are shown diagrammatically in Figures 1 and 2. NOTE 4 The installation dimensions cannot be standardized due to varying manufacturing processes. The manufacturer should be consulted for these dimensions. 4.3.2 Minimum lengths of engagement The minimum l
26、engths of engagement of sockets and male ends shall be in accordance with Table 3. The length, LI, for integral solder ring fittings or integral brazing ring fittings shall not include the width of the solder or brazing alloy groove see Figure lb). Male ends intended for use with integral ring socke
27、ts shall include an allowance for the width of the solder or brazing alloy groove. 4.3.3 Minimum bore area The minimum crosssectional area of the bore through each fitting shall be not les than the theoretical minimum area of the bore given in lble 4, except that for unequalended or adaptor fittings
28、 with ends specified in EN 1254-2, EN 12543, EN 12544 and EN 1254-5 or other standards, the smallest diameter shall apply provided that this diameter does not restrict other outlets. O BSI 1998 STD-BSI BS EN L254-L-ENGL 1778 1b24bb7 07105bU 251 Nominal diameter Tolerances on the mean diameter) with
29、remeet to the nominal diameter D Page 5 EN 1254-1:1998 Table 2 - Tolerances on the nominal diameter Values in millimetre Resulting diametrical difference Max. Min. Outside diameter of male end Inside diameter of socket 0,20 10 -I 12 I 0,02 14 I -0,05 _I +oo4 +0,15 +0,06 18 I 21 I 22 I t0,18 t0,07 +0
30、,05 -0,06 0,02 3,24 28 342) * * u, 352) I 40,521 -0,07 Es,) 3,30 ),41 0,03 0,03 t0,23 t0,09 542) I 702) 76, 12) 0,33 c0,10 +0,07 -0,08 1082) .) Arithmetical mean of two diameters at right angles a cross-section taken anywhere on the length of the socket or of the de end. 1 The soldering or brazing o
31、f tubes and fittings for these diameters requires special precautions regarding working practices. O BSI 1998 Page 6 EN 1254-1:1998 Figure 1 - Socket a) b) “1 When the male end diameter is less than the fitting diameter, L, for the male end should be increased by L, (see Table 3). Figure 2 - Maie en
32、d I 4.3.4 Minimum wall thickness Minimum wall thickness measured at any point shall be in accordance with dimension e in Wle 5 (see Figure 3). The minimum wall thickness requirements do not apply under indented mxbg on the socket end. in the case of integral solder ring fittings where a groove is ma
33、de within the soldering length, the minimum wall thickness shall be in accordance with dimension e in Wle 5 (see Figure 3). 4.3.6 Tolerance for the alianment of the fitting ends The alignment of the ends of the fitting shall be within 2“ of the specified axis. 4.4 Design and manufacture 4.4.1 Maximu
34、m temperatures and pressures Temperatures and pressures for assembled joints shaU not exceed the values in Wle 6 for the relevant soldering or brazing alloy. O BSI 1998 Nominal diameter Length of engagement 14 14.7 10.6 D 6 8 490 6.0 D L, I 25 I 16.4 12 I L, 9 10 12 770 7,0 9.0 64 132.5 I2 I 14 14,7
35、 15 10,0 11,0 ll,o Page 7 EN 1254-1:1998 15 16 18 Table 4 - Minimum bore 10,6 2 10,6 2 12.6 2 21 22 15,4 2 15,4 2 22 25 27.4 18,0 240 23.0 16 I 12,o 27,4 28 34 35 40 40.5 I 21 18,4 2 18,4 2 23 2 23 2 27 2 27 2 I 18.0 28 34 35 23,0 29,0 29.0 40 40,5 42 35,0 36,0 36.0 42 5316 54 e a) b) cl Figure 3 -
36、Minimum wall thickness 27 2 32 2 32 2 53,6 54 64 66,7 70 76,l 80 8879 106 108 47,0 47,0 55,0 57,0 6070 or b) without an abutment. 1 1 1 1 Tube abutment a) b) Cl Figure 4 - Tube abutment NOTE Figure 4 is diagrammatic only; the shape and number of abutments are at the manufacturers discretion. O BSI 1
37、998 STDaBSI BS EN 1254-L-ENGL 1998 1b24bbl 07105b5 833 Page 10 EN 12 b) for grade B mean not to exceed 200 pn and maximum 400 pn. 4.6 Type test requirements 4.6.1 Leaktightness under internal hydrostatic pressure When tested in accordance with 6.2, fittings shaii show no signs of leakage or permanen
38、t distortion 4.6.2 Resistance to stress corrosion The fitting shall be resistant to stress corrosion. When tested in accordance with 6.6, components manufactured from copper alloys shall show no evidence of cracking. 6 “kst methods 6.1 Assembly dimensions Socket and male end diameters shall be confi
39、rmed on a sampiing basis by the use of go and not go plain gauges in accordance with Figures 5 and 6 and Wles 7 and 8. 6.2 Leaktightness under internal hydrostatic pressure When a leaktightness test is required to be performed, the fitting shall be assembled on relevant tube in accordance with the m
40、anufacturers instnictions and subjected to a hydrostatic pressure test of a minimum of 1,5 times the maximum pressure given in Table 6 for the relevant size range. The pressure sha be applied graduaiiy and maintained for a minimum period of 15 min at ambient temperature. 6.3 Pressure test When requi
41、red, the bodies of fittings with as-cast microstructure, after machining, shall be pressure tested by the manufacturer. At the option of the manufacturer, they shall be submitted to a hydrostatic pressure test or to a pneumaiic pressure test or to any other pressure test of equivaient performance. T
42、he reference method of test shall be either by the application of an internal pneumatic pressure of a minimum of 5 bar with the fitting entirely immersed in water, or an internai hydrostatic pressure test of a minimum of 1,5 times maximum pressure given in Wle 6 for the relevant size range, and at a
43、mbient temperature. 1 2 1 I 1 Go 2 Not go Surface roughness (texture) 3,2 pm except as stated. Figure 6 - Go and not go plug gauges NOTE Figure i is diagrammatic only. O BSI 1998 STD.BS1 BS EN 1254-1-ENGL 1798 Lb2LibbS 07105bb 77T he 2, July 1998 Page 11 EN 1254-1:1998 Table 7 - Dimensions of go and
44、 not go plug gauges Values in miliimetrei I Nominal I Gauge dimensions (see Figure 6) I r 2)0 O BSI 1998 STD-BSI BS EN 1254-L-ENGL 1998 W LbZLibbS 07105b7 bob = Page 12 EN 1264-1:1998 1 60“ to 70“ n 2 1 Go 2 Not go Surface roughness (texture) 3,2 pm, except as stated. Figure 6 - Go and not go ring g
45、auges NOTE Fgure 6 is diagrammaic only. 6.4 Carbon in bore tests 6.4.1 Carbonfilm test “he detection and assessment of carbon im shall be carried out in accordance with the method described in annexk 5.4.2 Carbon content test The determination of carbon content shall be carried out in accordance wit
46、h the reference method described in EN 723. NOTE For routine conwols in the course of quality assurance procedures, other methods, e.g. the carbon black test (modified VTR method), can be used as an alternative. 6.6 Dezincication resistance test When a dezincfidon resistance test is to be carried ou
47、t, the test method given in EN IS0 6509 shad be used At the completion of the test - for grade A, the maximum depth of dezincfication shall be measured; - for grade B, the mean depth of dezincification (see annex B) and the maximum depth of dezincification shai be measured If any of the test pieces
48、fail the dezincfication resistance test, further test samples from the same batch shall be selected for retesing. If all the further test pieces pass the test, the batch represented shall be deemed to conform to the requirements of this standard for dezincification resistance. If any of the further
49、test pieces fail, then the batch represented shali be deemed not to conform to this standard. NOTE if the user needs to heat the fitling to a temperature exceeding 550 C, advice should be sought from the manufacturer. 6.6 Stress corrosion resistance test When a stress corrosion resistance test is to be carried out, fittings shall be tested according to the method in BO 6957 using test solution of pH 9,5 but without prior pickling. O BSI 1998 STD.BS1 BS EN 325Lt-1-ENGL 3778 3b2ibbS 0730568 542 Nominal diameter D 6 8
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