1、DEUTSCHE NORM March 1998 I DIN Copper and copper alloy plumbing fittings Part 4: Fittings combining other end connections with I EN 1254-4 capillary or cmpression ends Enalish version of DIN EN 1254-4 ICs 23.040.40 Descriptors: Copper, plumbing fittings. This standard, together with DIN EN 1254-1, M
2、arch 1998 edition, supersedes DIN 2856, February 1986 edition. Kupfer und Kupferlegierungen - Fittings - Teil 4: Fittings zum Verbinden anderer Ausfhrungen von Rohrenden mit Kapillarltverbindungen oder Klemmverbindungen European Standard EN 1254-4 : 1998 has the status of a DIN Standard. A comma is
3、used as the decimal marker. National foreword This standard has been prepared by CEN/TC 133. The responsible German body involved in the preparation of this standard was the Normenausschu Rohre, Rohrverbindungen und Rohrleitungen (Pipes, Pipe Joints and Pipelines Standards Committee), Technical Comm
4、ittee Fittings. It should be noted that fittings with an external Rk taper thread (modified IS0 7) are not common in Germany. The DIN Standards corresponding to the International Standards referred to in clause 2 of the EN are as follows: IS0 7-1 DIN 2999-1 IS0 228-1 DIN IS0 228-1 IS0 228-2 DIN IS0
5、228-2 Amendments DIN 2856, February 1986 edition, has been superseded by the specifications of EN 1254-1 and EN 1254-4. National Annex NA Standard referred to (and not included in Normative references) DIN 2999-1 Pipe threads for tubes and fittings - Parallel internal threads and taper external thre
6、ads - Thread dimensions EN comprises 14 pages. No pari of this standard may be reproduced without the prior permission of Ref. No. DIN EN 1254-4 : 1998-0 V Deutsches Institut fr Nonung e. V., Berlin. Luth Verlag GmbH, D-10772 Berlin, has the exclusive right of sale for German Standards (DIN-Normen).
7、 English price group 10 Sales No . . 1110 08.98 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1254-4 January 1998 ICs 23.040.40 Descriptors: Copper, plumbing fittings. English version Copper and copper alloys - Plumbing fittings Part 4: Fittings combining other end connections with capillary
8、or compression ends Cuivre et alliages de cuivre - Raccords - Partie 4: Raccords combinant des assemblages par capillarit ou par compression dautres types dassemblage oder Klemmverbindungen Kupfer und Kupferlegierungen - Fittings - Teil 4: Fittings zum Verbinden anderer Ausfhrungen von Rohrenden mit
9、 Kapillarltverbindungen This European Standard was approved by CEN on 1997-1 1-24. 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 alteration. Up-to-date lists and
10、bibliographical references concerning such national stand- ards may be obtained on application to the Central Secretariat or to any CEN member. The European Standards exist in three official versions (English, French, German). A version in any other language made by translation under the responsibil
11、ity 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, the Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, the N
12、etherlands, Norway, Portugal, Spain, Sweden, Switzerland, and the United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, 8-1050 Brussels O 1998. CEN - All rights of exploitation in any form and
13、 by any means reserved worldwide for CEN national members. Ref. No. EN 1254-4: 1998 E Page 2 EN 1254-4 : 1998 Foreword 1 2 3 3.1 3.2 3.3 3.4 3.5 4 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 Scope Normative references Definitions plumbing fitting capillary end compression end screwed union connector nominal dia
14、meter Contents Requirements Materials and tests Screwed union connections Thread dimensions Tightening systems Minimum wall thickness Minimum bore for unequal-ended fittings Minimum outside diameter of sealing face Flange-type fitting Annex A (informative) Bibliography Page 3 4 4 14 Page 3 EN 1254-4
15、 : 1998 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 national standard, either by publication of an identical text or by endorsement, at t
16、he 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 alloy fittings“ to prepare the following standard: EN 1254-4 Copper and copper alloys -
17、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 pipes. The other four parts of the standard are: EN 1254-1 Copper and copper alloys - P
18、lumbing 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 tubes EN 1254-3 Copper and copper alloys - Plumbing fittings - Part 3: Fittin
19、gs 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 to this standard are certified as conforming to the requirements of this s
20、tandard, based on third party testing and continuing surveillance which should be coupled with an assessment of a suppliers quality system against the appropriate standard Le. EN IS0 9001 or EN IS0 9002. in respect of potential adverse effects on the quality of water intended for human consumption,
21、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, while awaiting the adoption of verifiable European criteria, existing national
22、 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 choice of dimensions and threads in the application of products conforming to
23、 this standard. According to the CENKENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlan
24、ds, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Page 4 EN 1254-4 : 1998 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 permissib
25、le temperatures and pressures are also established. This part of EN 1254 specifies connection end dimensions for other than capillary or compression ends, for fittings combining capillary andior compression ends with other types of connecting ends. 2 Normative references This European Standard incor
26、porates, by dated or undated reference, provisions from other publications. These nonnative 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 Eur
27、opean Standard only when incorporated in it by amendment 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
28、 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 compression ends for use with plastics pipes EN 1254-5 Copper and copper alloys - Plumbing fittings -
29、 Part 5: Fittings with short ends for capillary brazing to copper tubes IS0 7-1 Pipe threads where pressure-tight joints are made on the threads - Part 1 : Dimensions, tolerances and designation IS0 7-2 Pipe threads where pressure-tight joints are made on the threads - Part 2: Verification by means
30、of limit gauges IS0 228-1 Pipe threads where pressure-tight joints are not made on the threads - Part 1 : Dimensions, tolerances and designation IS0 228-2 Pipe threads where pressure-tight joints are not made on the threads - Part 2: Verification by means of limit gauges Page 5 EN 1254-4 : 1998 NOTE
31、: Informative references to documents used in the preparation of this standard, and cited 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 sys
32、tem for the purpose of connecting the tubes either to each other or to a component part of 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 compressi
33、on of a ring or sleeve on the outside wall of the tube. 3.4 screwed union connector Coupling 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: Compon
34、ent parts of screwed union connectors from different manufacturers should not be regarded as interchangeable. 3.5 nominal diameter Nominal diameter of the fitting end expressed as the nominal outside diameter of the connecting tube. Page 6 EN 1254-4 : 1998 4 Requirements 4.1 Materiais and tests The
35、relevant requirements specified in EN 1254-1, EN 1254-2, EN 1254-3 and EN 1254-5 apply to the complete fitting. 4.2 Screwed union connections Screwed union joints, when assembled in accordance with the manufacturer?s instructions shall be capable of meeting the appropriate pressure test requirements
36、 for the respective end connections to relevant tube or pipe material and be capable of disconnection and reconnection, when the joint shall again be capable of meeting the pressure test requirements. 4.3 Thread dimensions Internal parallel threads shall be in accordance with table 2 or table 3 of t
37、his part of this standard. External taper threads shall be in accordance with table 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 IS0
38、 7 or IS0 228. NOTE: Alternative thread lengths or gauging systems should be agreed 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 wail thickness The minimum wall thickness at threade
39、d portions of fittings shall be in accordance with table 1. 4.6 Minimum bore for unequal-ended fittings Minimum bores quoted in this part of the standard shall not restrict other outlets. Page 7 EN 1254-4 : 1998 Wrought coppers and copper alloys ITLiII 130 1 ,o 191 192 194 4.7 Minimum outside diamet
40、er of sealing face Cast coppers and copper alloys 10 130 11 132 15 mm 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. 4.8 Flange-type fittings Loose flanges and fasteners on flange-type fittings may
41、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 I 1 I 1% 1% 2 2 Y2 3 4 1.6 I 1.8 Page 8 EN 1254-4 : 1998 N For minimum wall thickness see tabl
42、e 1 * (Optional bead) Figure 1: Internal IS0 7 parallel threads Table 2: Internal IS0 7 parallel threads Dimensions in millimetres NOTE: Refer to IS0 7 for thread details not listed in this table. Page 9 EN 1254-4 : 1998 . c x 45“ b) See table 3, note 1 N For minimum wall thickness see table 1 * (Op
43、tional bead) Figure 2: Internai IS0 228 parallel threads Page 1 O EN 1254-4 : 1998 A Thread designation G Y” B min. 56 G/z 10,5 G% D Wrought Cast alloys min. min. coppers and coppers and copper alloys copper G1 I 1395 E” max. Gl% G 1 Y2 F2 (Optional bead) min. Table 3: Internai IS0 228 parallel thre
44、ads Dimensions in millimetres G min. 11,6 I 11,8 I 0,9 23,8 23,8 29,3 29,7 1,s 36,3 36,9 2,3 45,6 46,2 2,3 51,4 52,O 2,3 L0,O 1 121,O 1 2,3 * 22,o 26,7 I 9,O 49,O 56,6 I 13,5 98,O 1 20,O I 120,o I 22,o At the option of the manufacturer, as an alternative to chamfer E, the first thread may be removed
45、. If required for a sealing face, face X to be smoothly machined at right angles to the thread axis. NOTE 1 : Fittings without undercut: - for class 1 dimension B applies see figure 2 b); designation or identification to be agreed between the purchaser and the manufacturer; - for class 2 dimension G
46、 applies see figure 2 b); designation or identification to be agreed between the purchaser and the manufacturer. NOTE 2: Refer to IS0 228 for thread details not listed in this table. NOTE 3: It is not recommended to use this thread in connection with external taper threads to IS0 7 because satisfact
47、ow performance cannot be guaranteed. Page 11 EN 1254-4 : 1998 D min. E ma. Fitting allow ance Gauge length min. I max. 3 77 5 ,O 5 70 6,4 571 7,7 64 10,o 777 11,3 891 12,7 674 6-4 1074 15,O 10,4 15,O 10,4 21,9 28,9 N BA u 1) Fitting allowance M Gauge plane N For minimum wall thickness see table 1 *
48、Thread runout (or thread undercut if provided) additional to fitting allowance Fimre 3: External IS0 7 taDer threads Table 4: External IS0 7 tape threads Dimensions in millimetre I C IA Thread designation 4 I 0.9 3.7 I 4.7 I 7.3 I RY 1 I 7,5- 13,6 I 18,2 47 I 2,3 9,2 I 14,O I 21,O 55 I 2,3 R2 /z 9.2
49、 I 17.1 I 24.1 Page 12 EN 1254-4 : 1998 A Thread designation Rk /e Rk% Rk ve A4 Gauge plane N For minimum wall thickness see table 1 * Thread runout (or thread undercut if provided) additional to dimension F Figure 4: External Rk taper threads (modified IS0 7) F C D E Gauge length min. min. max. min. ma. 175 296 495 4 096 293 490 696 6 O99 293 470 696 9 O99 Page 13 EN 1254-4 : 1998 Yr- I N For minimum wall thickness see table 1 Figure 5: External IS0 228 parallel threads Table 6: External IS0 228 parallel threads Dimensions in millimetres A Thread designa
