DIN 3387-1-2008 Separable unthreaded pipe connections for metal gas pipes - Part 1 Connections for pipes with smooth ends《金属煤气管道用可拆卸的无螺纹管连接件 第1部分 带平滑端管用连接件》.pdf

1、November 2008 Translation by DIN-Sprachendienst.English price group 15No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).I

2、CS 23.040.60!$j“1567191www.din.deDDIN 3387-1Separable unthreaded pipe connections for metal gas pipes Part 1: Connections for pipes with smooth endsEnglish translation of DIN 3387-1:2008-11Lsbare Rohrverbindungen fr metallene Gasleitungen Teil 1: GlattrohrverbindungenEnglische bersetzung von DIN 338

3、7-1:2008-11Raccords dmontables pour tuyauteries gaz mtalliques Partie 1: Raccordements pour des tuyauteries avec les extrmits lissesTraduction anglaise de DIN 3387-1:2008-11SupersedesDIN 3387-1:1991-01www.beuth.deDocument comprises 32 pagesIn case of doubt, the German-language original shall be cons

4、idered authoritative.08.12 DIN 3387-1:2008-11 2 Start of validity This standard is valid from 1 November 2008. Contents Page Foreword3 Introduction .4 1 Scope 5 2 Normative references 5 3 Terms and definitions .9 3.1 General definitions 9 3.2 Terms relating to flexibility 10 3.3 Terms for axial stre

5、ngth . 10 4 Requirements and tests . 10 4.1 General . 10 4.2 Materials 11 4.3 Design 13 4.4 Leak-tightness . 18 4.5 Internal pressure resistance 18 4.6 Flexibility . 19 4.7 Axial strength 21 4.8 Vibrational resistance 22 4.9 Operating temperatures . 23 4.10 Cyclic endurance 23 5 Testing . 24 5.1 Tes

6、t laboratories . 24 5.2 Types of test 24 5.3 Test objects and test documents 24 6 Labelling and installation instructions . 24 6.1 Labelling 24 6.2 Installation instructions . 25 (normative) . 26 Annex AA.1 General . 26 A.2 Materials for connector bodies, lock nuts and similar clamping devices 26 A.

7、3 Leak-tightness test . 27 (normative) Smooth-end connectors with MOP 16 bar28 Annex BB.1 Materials for connector bodies, lock nuts and similar clamping devices 28 B.2 Leak-tightness test. 29 Annex C (normative) Smooth-end connectors with MOP 250 bar.30 C.1 Materials for connector bodies, lock nuts

8、and similar clamping devices.30 C.2 Leak-tightness test.31 Annex D (informative) Explanatory notes32 DIN 3387-1:2008-11 3 Foreword This standard contains safety requirements in Clause 4. This standard has been prepared by Working Committee Bauteile und Hilfsstoffe Gas of the Normenausschuss Gastechn

9、ik (NAGas) (Gas Technology Standards Committee) of DIN, the German Institute for Standardization (DIN), in agreement with the Deutsche Vereinigung des Gas- und Wasserfaches e.V. (DVGW) (German Technical and Scientific Association for Gas and Water. The standard has been adopted as part of the DVGW T

10、echnical Rules Gas. This standard contains the provisions of DVGW-VP 613 “Solderless unthreaded pipe connections Separable unthreaded pipe connections for metal gas pipes”, which will be withdrawn following the publication of DIN 3387-1. DIN 3387, Separable unthreaded pipe connections for metal gas

11、pipes comprises: Part 1: Connections for pipes with smooth ends Part 2: Connections for pipes with flanged ends Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. DIN shall not be held responsible for identifying any or all such pate

12、nt rights. Amendments The standard differs from DIN 3387-1:1991-01 as follows: a) the scope is new; b) terms and definitions have been added; c) specifications regarding requirements and testing have been amended; d) DVGW-VP 613 has been incorporated; e) the standard has been editorially revised. Pr

13、evious editions DIN 3387: 1976-07 DIN 3387-1: 1991-01 DIN 3387-1:2008-11 4 Introduction Design types that due to technological development deviate from the provisions of this standard in some details can be recognized as being in compliance with this standard upon application to a special committee.

14、 Such applications are to be sent to DINs Normenausschuss Gastechnik (NAGas), Josef-Wirmer-Str. 13, 53123 Bonn. The application shall include a test report from a neutral test laboratory recognized by the DVGW. During the test, the test laboratory shall proceed along the lines of the specifications

15、of this standard. An application for recognition of compliance with this standard is decided after consultation by a special committee made up as follows: a) the Convenor of the Working Committee Bauteile und Hilfsstoffe Gas of DINs Normenausschuss Gastechnik (NAGas), b) the Head of the test laborat

16、ory in which the smooth-end connector was tested, c) a member of the DVGW Technical Committee Bauteile und Hilfsstoffe Gas, d) the Manager of NAGas. The decision to recognize compliance with the standard depends on whether or not the requirements for smooth-end connectors as in this standard in rela

17、tion to safety, functionality, etc. are met in a way other than that provided for by this standard. To be effective, recognition of compliance with this standard as declared by the special committee shall be confirmed by the working committee responsible for this standard. An application for recogni

18、tion of standard compliance is deemed a new work item proposal for standards work. Recognition of standard compliance by the working committee serves as acceptance of this new work item proposal for standards work. This acceptance shall be published in the DIN-Anzeiger fr Technische Regeln der DIN-M

19、itteilungen (DIN Gazette of Technical Rules) with a note confirming that a new edition of the standard will be published according to the manuscript procedure. If the four-week public enquiry period ends without any comments/objections being submitted, then the recognition of compliance with this st

20、andard has been confirmed by the working committee and the subsequent edition is adopted. DIN 3387-1:2008-11 5 1 Scope This standard specifies the requirements for and testing of connectors that can only be separated with tools and which form a metallic or non-metallic seal with smooth walls on meta

21、l pipes or other metal cylindrical components (referred to below as smooth-end connectors). The connector can also be of other connection types, such as thread, flange, etc., and can have other designs, e.g. straight, angle or T-piece connections. Different design types are covered by the same type

22、designation and the same DIN-DVGW test mark. The connectors are suitable for pipes that are operated with gases in accordance with DVGW G 260 within the operating pressures and for the nominal sizes (outside pipe diameters) defined in Table 1, and which are designed for operating temperatures betwee

23、n 20 C and +60 C. Table 1 Areas of application and assignment of operating pressures and outer pipe diameter ranges Annex Area of application MOP Nominal size A DVGW Worksheet G 600 (TRGI) TRF 5 bar DN 150 B Gas distribution, plant construction TRF 16 bar DN 300 C Gas transport, plant construction,

24、natural gas fuelling station, gas vehicles, LPG installations 250 bar 42 mm This standard does not apply to connections within gas appliances. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cite

25、d applies. For undated references, the latest edition of the referenced document (including any amendments) applies. DIN 13-5, ISO general purpose metric screw threads Part 5: Nominal sizes for 1 mm and 1,25 mm fine pitch threads Nominal diameter from 7,5 mm to 200 mm DIN 13-6, ISO general purpose m

26、etric screw threads Part 6: Nominal sizes for 1 5 mm fine pitch threads Nominal diameter from 12 mm to 300 mm DIN 13-7, ISO general purpose metric screw threads Part 7: Nominal sizes for 2 mm fine pitch threads Nominal diameter from 17 mm to 300 mm DIN 475-1, Widths across flats for bolts, screws, v

27、alves and fittings DIN 824, Technical drawings Folding to filing size DIN 1652-4:1990-11, Bright steel made from steel for quenching and tempering Technical delivery conditions DIN 2353, Non-soldering compression fittings with cutting ring Complete fittings and survey DIN 2442, Steel Tubes of Specif

28、ied Quality Suitable for Screwing Nominal Pressure 1 to 100 DIN 2501-1, Flange Part 1: Connection dimensions DIN 3535-6, Gaskets for gas supply Part 6: Gasket materials based on synthetic fibres, graphite or polytetrafluoroethylen (PTFE) for gas valves, gas appliances and gas mains DIN 3387-1:2008-1

29、1 6 DIN 3852-1, Stud ends, ports, for fittings, valves Part 1: Plug screw with metric fine pitch thread General outlay of types DIN 3852-2, Stud ends, ports, for fittings, valves Part 2: Plug screw with Whitworth pipe thread General outlay of types DIN 3852-11, Screwed stud-ends Tapped holes For com

30、pression fittings, valves Part 11 screw plugs, screwed stud-ends type E Design dimensions DIN 3858, Whitworth pipe threads for pipe unions Parallel internal thread and taper external thread Dimensions DIN 3859-1, Compression couplings Part 1: Technical delivery conditions DIN 3865, Compression fitti

31、ngs Nipple 24 with O-ring For compression joint according to DIN EN ISO 8434-1 DIN 3869, Profile sealing rings DIN 4811, Pressure regulators for LPG and safety devices Requirements DIN 7603, Sealing rings DIN 50011-12, Artificial climates in technical applications Air temperature as a climatological

32、 quantity in controlled-atmosphere test installations DIN EN 549, Rubber materials for seals and diaphragms for gas appliances and gas equipment DIN EN 682, Elastomeric seals Material requirements for seals used in pipes and fittings carrying gas and hydrocarbon fluids DIN EN 751-1, Sealing material

33、s for metallic threaded joints in contact with 1st, 2nd and 3rd family gases and hot water Part 1: Anaerobic jointing compounds DIN EN 751-2, Sealing materials for metallic threaded joints in contact with 1st, 2nd and 3rd family gases and hot water Part 2: Non-hardening jointing compounds DIN EN 751

34、-3, Sealing materials for metallic threaded joints in contact with 1st, 2nd and 3rd family gases and hot water Part 3: Unsintered PTFE tapes DIN EN 1057, Copper and copper alloys Seamless, round copper tubes for water and gas in sanitary and heating applications DIN EN 1092-1, Flanges and their join

35、ts Circular flanges for pipes, valves, fittings and accessories, PN designated Part 1: Steel flanges DIN EN 1092-2, Flanges and their joints Circular flanges for pipes, valves, fittings and accessories, PN designated Part 2: Cast iron flanges DIN EN 1092-3, Flanges and their joints Circular flanges

36、for pipes, valves, fittings and accessories, PN designated Part 3: Copper alloy flanges DIN EN 1254-1, Copper and copper alloys Plumbing fittings Part 1: Fittings with ends for capillary soldering or capillary brazing to copper tubes DIN EN 1254-4, Copper and copper alloys Plumbing fittings Part 4:

37、Fittings combining other end connections with capillary or compression ends DIN EN 1562, Founding Malleable cast irons DIN EN 1563, Founding Spheroidal graphite cast irons DIN EN 1982, Copper and copper alloys Ingots and castings DIN EN 10083-2, Steels for quenching and tempering Part 2: Technical d

38、elivery conditions for non alloy steels DIN 3387-1:2008-11 7 DIN EN 10087, Free-cutting steels Technical delivery conditions for semi-finished products, hot-rolled bars and rods DIN EN 10088-1, Stainless steels Part 1: List of stainless steels DIN EN 10088-3, Stainless steels Part 3: Technical deliv

39、ery conditions for semi-finished products, bars, rods, wire, sections and bright products of corrosion resisting steels for general purposes DIN EN 10151, Stainless steel strip for springs Technical delivery conditions DIN EN 10204, Metallic products Types of inspection documents DIN EN 10213-2, Tec

40、hnical delivery conditions for steel castings for pressure purposes Part 2: Steel grades for use at room temperature and elevated temperatures DIN EN 10220, Seamless and welded steel tubes Dimensions and masses per unit length DIN EN 10222-5, Steel forgings for pressure purposes Part 5: Martensitic,

41、 austenitic and austenitic-ferritic stainless steels DIN EN 10226-1, Pipe threads where pressure tight joints are made on the threads Part 1: Taper external threads and parallel internal threads Dimensions, tolerances and designation DIN EN 10250-2, Open die steel forgings for general engineering pu

42、rposes Part 2: Non-alloy quality and special steels DIN EN 10255, Non-alloy steel tubes suitable for welding and threading Technical delivery conditions DIN EN 10263-2, Steel rod, bars and wire for cold heading and cold extrusion Part 2: Technical delivery conditions for steels not intended for heat

43、 treatment after cold working DIN EN 10263-4, Steel rod, bars and wire for cold heading and cold extrusion Part 4: Technical delivery conditions for steels for quenching and tempering DIN EN 10270-3, Steel wire for mechanical springs Part 3: Stainless spring steel wire DIN EN 10272, Stainless steel

44、bars for pressure purposes DIN EN 10277-1, Bright steel products Technical delivery conditions Part 1: General DIN EN 10277-2, Bright steel products Technical delivery conditions Part 2: Steels for general engineering purposes DIN EN 10277-3, Bright steel products Technical delivery conditions Part

45、3: Free-cutting steels DIN EN 10277-4, Bright steel products Technical delivery conditions Part 4: Case-hardening steels DIN EN 10283, Corrosion resistant steel castings DIN EN 10293, Steel castings for general engineering uses DIN EN 10305-1, Steel tubes for precision applications Technical deliver

46、y conditions Part 1: Seamless cold drawn tubes DIN EN 10305-2, Steel tubes for precision applications Technical delivery conditions Part 2: Welded cold drawn tubes DIN EN 10305-3, Steel tubes for precision applications Technical delivery conditions Part 3: Welded cold sized tubes DIN EN 10305-4, Ste

47、el tubes for precision applications Technical delivery conditions Part 4: Seamless cold drawn tubes for hydraulic and pneumatic power systems DIN EN 10305-6, Steel tubes for precision applications Technical delivery conditions Part 6: Welded cold drawn tubes for hydraulic and pneumatic power systems DIN EN 12163, Copper and copper alloys Rod for general purposes DIN 3387-1:2008-11 8 DIN EN 12164, Copper and copper alloys Rod for free machining purposes DIN EN 12266-1, Industri