1、ICS 23.040.60Ltlose und geltete Rohrverschraubungen Gewindezapfen zuberwurfmuttern KonstruktionsblattIn keeping with current practice in standards published by the International Organization for Standardization(ISO), a comma has been used throughout as the decimal marker.ForewordThis standard has be
2、en prepared by Technical Committee Rohrverschraubungen of the NormenausschussRohrleitungen und Dampfkesselanlagen (Pipelines and Pressure Vessels Standards Committee).AmendmentsThis standard differs from the November 1982 edition as follows:a) The specifications have been harmonized with those given
3、 in DIN EN ISO 8434-1.b) Compression ends for series S 14 fittings are no longer specified.c) The standard has been editorially revised.Previous editionsDIN 3853: 1958-09, 1963-06, 1982-11.Ref. No. DIN 3853 : 2001-09English price group 05 Sales No. 010505.02DEUTSCHE NORM September 20013853Continued
4、on pages 2 and 3. No part of this translation may be reproduced without the 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).Compression ends for coupling nutsTranslation by
5、DIN-Sprachendienst.In case of doubt, the German-language original should be consulted as the authoritative text.This standard, together withDIN EN ISO 8434-1, November 1997edition, supersedes November 1982edition.All dimensions are in millimetres.1 ScopeThis standard specifies the dimensions of comp
6、ression ends for coupling nuts for use in compressioncoupling assemblies. It is also intended to facilitate the design of such assemblies and the correctcombination of product series, pipe outside diameters, port types and thread sizes.Page 2DIN 3853 : 2001-092 Normative referencesThis standard inco
7、rporates, by dated or undated reference, provisions from other publications. These normativereferences are cited at the appropriate places in the text, and the titles of the publications are listed below. Fordated references, subsequent amendments to or revisions of any of these publications apply t
8、o this standardonly when incorporated in it by amendment or revision. For undated references, the latest edition of thepublication referred to applies.DIN 13-5 General purpose ISO metric screw threads Nominal sizes for 1 mm and 1,25 mm finepitch threads with diameters from 7,5 mm to 200 mmDIN 13-6 G
9、eneral purpose ISO metric screw threads Nominal sizes for 1,5 mm fine pitch threadswith diameters from 12 mm to 300 mmDIN 13-7 General purpose ISO metric screw threads Nominal sizes for 2 mm fine pitch threadswith diameters from 17 mm to 300 mmDIN 3859-1 Compression fittings and couplings Technical
10、delivery conditionsDIN 3862 Double cones for use with compression couplings Design and type X portDIN 3863 Spherical liners for use with compression couplings Design and type U and Y portsDIN EN ISO 8434-1 Metallic tube connections for fluid power and general use Part 1: 24 compressionfittings (ISO
11、8434-1 : 1994)DIN ISO 965-2 ISO general purpose metric screw threads Tolerances Part 2: Limits of sizes for generalpurpose external and internal screw threads Medium quality (ISO 965-2 : 1998)3 Dimensions and designationCompression end witha) thread chamfered to an includedangle of 45 (minor diamete
12、r)b) angle a from 30 to 60(at manufacturers discretion)Compression ends may be supplied with thread undercut.*) Port shall be of type W as in DIN EN ISO 8434-1, type X as in DIN 3862, or type Y as in DIN 3863.Figure 1: Compression end dimensions (notation)Designation of a compression end for couplin
13、g nuts, light-duty series (L), with type W port (W), for a 12 mm pipeoutside diameter (12):Compression end DIN 3853 L 12 W4 Screw threadCompression ends shall be provided with an ISO metric screw thread as specified in DIN 13-5 to DIN 13-7,medium tolerance quality as in DIN ISO 965-2.*) *)Page 3DIN
14、3853 : 2001-095 Technical delivery conditionsThe technical delivery conditions specified in DIN 3859-1 shall apply.Table 1: Compression end dimensionsCompressioncouplingSeriesPipeoutsidediameterThread size (d7)for port type for port typesLL(extra-lightduty)L(lightduty)S(heavyduty)1) Applies only to compressed air brake systems.1)
