1、Ref. No. DIN 28601 : 2000-06English price group 07 Sales No. 010702.03DEUTSCHE NORM June 200028601Continued on pages 2 to 7. 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 e
2、xclusive right of sale for German Standards (DIN-Normen).Screwed socket joints for ductile iron pipes and fittingsAssembly and componentsTranslation by DIN-Sprachendienst.In case of doubt, the German-language original should be consulted as the authoritative text.ICS 23.040.60Rohre und Formstcke aus
3、 duktilem Gusseisen Schraubmuffen-Verbindungen Zusammenstellung, Muffen, Schraubringe,Dichtungen und GleitringeIn 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 stand
4、ard has been prepared by Technical Committee Gusseiserne Druckrohre und Formstcke of theNormenausschuss Wasserwesen (Water Practice Standards Committee).AmendmentsThis standard differs from the March 1976 editions of DIN 28601-1 to DIN 28601-3 in that the three parts havebeen combined into one stand
5、ard, which has been harmonized with DIN EN 545, DIN EN 598 andDIN EN 969.Previous editionsDIN 28601-1: 1976-03; DIN 28601-2: 1976-03; DIN 28601-3: 1976-03.All dimensions are in millimetres.1 ScopeThis standard specifies the dimensions of DN 40 to DN 400 screwed socket joint assemblies for ductile ir
6、onpipes and fittings used in gas or water applications (as in DIN EN 545 and DIN EN 969), or for seweragesystems (as in DIN EN 598). Tolerances on dimension DE (see figure 1 and table 3) for this type of jointassembly are greater than specified in DIN EN 545, DIN EN 598 and DIN EN 969.2 Normative re
7、ferencesThis standard incorporates, by dated or undated reference, provisions from other publications. These nor-mative references are cited at the appropriate places in the text, and the titles of the publications are listedbelow. For dated references, subsequent amendments to or revisions of any o
8、f these publications apply tothis standard only when incorporated in it by amendment or revision. For undated references, the latestedition of the publication referred to applies.DIN 7715-2 Dimensional tolerances for rubber products Soft rubber compression-moulded productsDIN EN 545 Ductile iron pip
9、es, fittings, accessories and their joints for water pipelines Requirements andtest methodsSupersedes March 1976editions of DIN 28601-1to DIN 28601-3.Page 2DIN 28601 : 2000-06DIN EN 598 Ductile iron pipes, fittings, accessories and their joints in sewerage applications Require-ments and test methods
10、DIN EN 681-1 Elastomeric seals Material requirements for pipe joint seals used in water and drainageapplications Part 1: Vulcanized rubberDIN EN 682 Elastomerics seals Materials requirements for seals used in pipes and fittings carrying gasand hydrocarbon fluidsDIN EN 969 Ductile iron pipes, fitting
11、s, accessories and their joints for gas pipelines Requirements andtest methodsDIN EN 10025 Hot rolled unalloyed structural steel products Technical delivery conditions (includesAmendment A1 : 1993)ISO 8062 : 1994 Castings System of dimensional tolerances and machining allowances3 Dimensions, toleran
12、ces and materials3.1 GeneralGeneral tolerances shall be as specified in ISO 8062 and, for seals as in subclause 3.4, as specified inDIN 7715-2.Dimensions and limit deviations for screwed sockets shall be as in tables 1 to 5. At the loadbearing part of thesocket, the wall thickness shall not be less
13、than that of the barrel. The external socket profile depends on theconditions of manufacture, and may be modified at the socket, screw ring or spigot to accommodate axial thrust.1 Screw ring2 Gasket3 Washer4 Screwed socketNOTE: See DIN EN 545, DIN EN 598 and DIN EN 969 for dimensions DE and Lu.Figur
14、e 1: Screwed socket joint assembly (notation)3.2 Screw socketsMaterial and designation shall be as specified in DIN EN 545, DIN EN 598 and DIN EN 969.Figure 2: Screwed joint for pipes and fittings (notation)Page 3DIN 28601 : 2000-06NOTE: See DIN EN 545 and DIN 969 for dimension d.Figure 3: Slip-on s
15、crewed socketTable 1: Screwed socket dimensionsNominalsizeDNSocket dimensionsThread pitch,h1Tolerances are given in table 3.Page 4DIN 28601 : 2000-063.3 Screw ringn = number of groovesFigure 4: Screw ring (notation)Designation of a screw ring of nominal size DN 100, made of ductile iron and conformi
16、ng to DIN EN 545:Screw ring DIN 28601 100Table 2: Screw ring dimensionsNominalsizeDNThread pitch,h1Groove dimensionsTolerances are given in table 3.Page 5DIN 28601 : 2000-06Table 3: Tolerances for screwed socket jointsNominal sizeDNSpigot diameter,DE1)Limit deviations for dimensions1) Greater tolera
17、nces are permitted for these joints than specified in DIN EN 545, DIN EN 598 and DIN EN 969.3.4 Gasket1 Hard rubber2 Soft rubberFigure 5: Gasket (notation)Designation of a gasket of nominal size DN 100:Gasket DIN 28601 100Page 6DIN 28601 : 2000-06The material used for gaskets shall be rubber, with t
18、he hard section being of Shore hardness A 80, and the softsection of Shore hardness A 50. Hardness, requirements and testing shall be as specified in DIN EN 681-1 andDIN EN 682, except that the compression set at 23 C shall not be greater than 8 % for Shore hardness A 50.3.5 WasherFigure 6: Washer (
19、notation)Designation of a washer of nominal size DN 100:Washer DIN 28601 100Table 4: Dimensions and tolerances for gaskets for screwed socket jointsNominal sizeDNLimit deviationPage 7DIN 28601 : 2000-06Table 5: Dimensions and tolerances for washersThe material used for washers shall be steel at least of grade S185 as in DIN EN 10025.
