DIN 908-2012 放油塞标准

April 2012Translation by DIN-Sprachendienst.English price group 11No 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).ICS 21.060.10!$x“1929985www.din.deDDIN 908Internal drive screw plugs with collar Cylindrical thread,English translation of DIN 908:2012-04Verschlussschrauben mit Bund und Innenantrieb Zylindrisches Gewinde,Englische bersetzung von DIN 908:2012-04Bouchons filets collerette et entranement intrieur Filetage cylindrique,Traduction anglaise de DIN 908:2012-04SupersedesDIN 908:1992-01www.beuth.deIn case of doubt, the German-language original shall be considered authoritative.Document comprises 17 pages01.13DIN 908:2012-04 2 A comma is used as the decimal marker. Contents Page Foreword .3 1 Scope .4 2 Normative references .4 3 Symbols .5 4 Dimensions and masses .6 4.1 Screw plug dimensions (standard type) .6 4.2 Screw plug dimensions (type L, light-duty) . 11 5 Technical delivery conditions . 15 6 Designation . 16 Bibliography . 17 DIN 908:2012-04 3 Foreword This standard has been prepared by Working Committee NA 067-00-08 AA Verbindungselemente mit Sonderformen und aus Kunststoff of the Normenausschuss Mechanische Verbindungselemente (Fasteners Standards Committee). 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 patent rights. Amendments This standard differs from DIN 908:1992-01 as follows: a) screw plugs with hexalobular socket and 12 point socket have been included; b) the title of the standard has been changed; c) symbol l has been replaced by lt, symbol d1by d, symbol d2by dkand symbol c by k; d) Clause 3 listing additional symbols and quantities has been added; e) the previous design type is now referred to as the standard type; f) light-duty screw plugs (type L) have been added; g) the technical delivery conditions have been revised; h) normative references have been updated; Previous editions DIN 908: 1925-04, 1943-12, 1956-04, 1959-09, 1973-01, 1983-06, 1992-01 DIN 908:2012-04 4 1 Scope This standard specifies dimensions, masses and technical delivery conditions for screw plugs which are intended to be screwed into holes with parallel thread as specified in DIN 13-5, DIN 13-6 or DIN 13-7, and DIN EN ISO 228-1. Such plugs may be used together with seal rings as specified in DIN 7603, the type and material of which are to be selected as a function of the operating conditions (e.g. the fluid with which the threaded parts are in contact, temperature, pressure, etc.). 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited 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 metric 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 267-2, Fasteners Technical delivery conditions Design and dimensional accuracy DIN 962, Designation system for fasteners DIN 3852-1, Ports and stud ends with metric fine pitch thread, for use with compression couplings, valves and screw plugs Dimensions DIN 3852-2, Stud ends and tapped holes with pipe thread, for use with compression couplings, valves and screw plugs Dimensions DIN 7603, Sealing rings DIN 34824, 12 point socket for bolts and screws 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 treatment after cold working DIN EN 10277-3, Bright steel products Technical delivery conditions Part 3: Free-cutting steels DIN EN 12476, Phosphate conversion coatings of metals Method of specifying requirements DIN EN 26157-3, Fasteners Surface discontinuities Bolts, screws and studs subject to special require-ments DIN EN 28839, Mechanical properties of fasteners Nonferrous metal bolts, screws, studs and nuts DIN EN ISO 225, Fasteners Bolts, screws, studs and nuts Symbols and descriptions of dimensions DIN EN ISO 228-1, Pipe threads where pressure-tight joints are not made on the threads Part 1: Dimen-sions, tolerances and designation DIN 908:2012-04 5 DIN EN ISO 3269, Fasteners Acceptance inspection DIN EN ISO 3506-1, Mechanical properties of corrosion-resistant stainless steel fasteners Part 1: Bolts, screws and studs DIN EN ISO 4042, Fasteners Electroplated coatings DIN EN ISO 4759-1, Tolerances for fasteners Part 1: Bolts, screws, studs and nuts Product grades A, B and C DIN EN ISO 10664, Hexalobular internal driving feature for bolts and screws DIN EN ISO 10683, Fasteners Non-electrolytically applied zinc flake coatings DIN ISO 965-1, ISO general purpose metric screw threads Tolerances Part 1: Principles and basic data DIN ISO 8992, Fasteners General requirements for bolts, screws, studs and nuts 3 Symbols The following symbols apply to screw plugs: C nominal diameter of 12 point socket drive (equal to d1 minaccording to DIN 34824) dBbore diameter i length of stud end t1penetration depth of hexagon socket drive t2penetration depth of hexalobular socket drive t3penetration depth of 12 point socket drive t4penetration depth of hexagon socket drive for light-duty screw plugs (type L) t5depth of bore dBfor light-duty hexagon socket screw plugs (type L) t6depth of bore dBfor light-duty hexalobular socket and 12 point socket screw plugs (type L) t7penetration depth of hexalobular socket drive for light-duty screw plugs (type L) t8penetration depth of 12 point socket drive for light-duty screw plugs (type L) w1minimum wall thickness (standard type) w2minimum wall thickness (type L, light-duty) Other relevant symbols and their descriptions are given in DIN EN ISO 225. DIN 908:2012-04 6 4 Dimensions and masses 4.1 Screw plug dimensions (standard type) See Figures 1 to 3 and Table 1. Dimensions in millimetres Key 1 Type A stud end as in DIN 3852-1 and DIN 3852-2 2 Permanent magnet (PM) NOTE Where required, screw plugs may be supplied with an integrated permanent magnet (PM). Dimensions and details of design and placement of the magnet are at the manufacturers discretion. aForm of socket base at manufacturers discretion. bCentric elevation of 0,25 mm for d 24 mm and of 0,5 mm for d 24 mm permitted. cHexagon socket may be slightly rounded or countersunk to 1,2 smax. ddf (1,15 smax) + 0,5 mm (applies to turned parts only). eMaximum prebore diameter for turned parts with 1,025 smax. fPermissible projection. gScrew thread chamfered to not more than 1,5 P (P = pitch). Figure 1 Dimensions of hexagon socket screw plug (ISK) Standard type (notation) DIN 908:2012-04 7 Dimensions in millimetres Key 1 Type A stud end as in DIN 3852-1 and DIN 3852-2 2 Permanent magnet (PM) NOTE Where required, screw plugs may be supplied with an integrated permanent magnet (PM). Dimensions and details of design and placement of the magnet are at the manufacturers discretion. aForm of socket base at manufacturers discretion. bCentric elevation of 0,25 mm for d 24 mm and of 0,5 mm for d 24 mm permitted. cHexalobular socket (ISR) may be slightly rounded or countersunk to 1,1 A. ddf A + 0,5 mm (applies to turned parts only). eMaximum prebore diameter for turned parts with 1,15 B. fPermissible projection. gScrew thread chamfered to not more than 1,5 P (P = pitch). Figure 2 Dimensions of screw plug with hexalobular socket (ISR) as in DIN EN ISO 10664 Standard type (notation) DIN 908:2012-04 8 Dimensions in millimetres Key 1 Type A stud end as in DIN 3852-1 and DIN 3852-2 2 Permanent magnet (PM) NOTE Where required, screw plugs may be supplied with an integrated permanent magnet (PM). Dimensions and details of design and placement of the magnet are at the manufacturers discretion. aForm of socket base at manufacturers discretion. bCentric elevation of 0,25 mm for d 24 mm and of 0,5 mm for d 24 mm permitted. c12 point socket (IVZ) may be slightly rounded or countersunk to 1,1 C. ddf C + 0,5 mm (applies to turned parts only). eMaximum prebore diameter for turned parts at manufacturers discretion. fPermissible projection. gScrew thread chamfered to not more than 1,5 P (P = pitch). Figure 3 Dimensions of screw plug with 12 point socket (IVZ) as in DIN 34824 Standard type (notation) DIN 908:2012-04 9 Table 1 Dimensions of screw plugs (standard type) Dimensions in millimetres d Hexagon socket Hexalobular socket as in DIN EN ISO 10664 12 point socket as in DIN 34824 Massb(7,85 kg/dm3) kg/1 000 units Metric fine pitch thread as in DIN 13-5, DIN 13-6 or DIN 13-7 Pipe thread as in DIN EN ISO 228-1 k dki lteas t1t2t3w1+0,5 0 h14 0,2 min. D12 min. No.min. Nominal sizemin. min. M10 1 G 1/8 A 3 14 8 11 5,7 5 5,0 30 2,5 N6 2,5 3 6,3 M12 1,5 3 17 12 15 6,9 6 7,0 40 2,7 N8 2,9 3 11,3 G 1/4 A 3 18 12 15 6,9 6 7,0 40 2,7 N8 2,9 3 14,6 M14 1,5 3 19 12 15 6,9 6 7,0 45 2,9 N8 2,9 3 16,0 M16 1,5 3 21 12 15 9,2 8 7,5 50 3,7 N10 3,7 3 19,0 G 3/8 A 3 22 12 15 9,2 8 7,5 50 3,7 N10 3,7 3 21,4 M18 1,5 4 23 12 16 9,2 8 7,5 50 3,7 N10 3,7 3 28,3 M20 1,5 4 25 14 18 11,4 10 7,5 55 4,6 N12 4,6 4 37,5 G 1/2 A 4 26 14 18 11,4 10 7,5 55 4,6 N12 4,6 4 40,8 M22 1,5 4 27 14 18 11,4 10 7,5 55 5,4 N14 5,4 4 47,5 M24 1,5 4 29 14 18 13,7 12 7,5 60 6,4 N16 6,4 4 53,5 M26 1,5 4 31 16 20 13,7 12 9,0 60 6,4 N16 6,4 4 68,7 M27 2 G 3/4 A 4 32 16 20 13,7 12 9,0 60 6,4 N16 6,4 4 73,5 M30 1,5 M30 2 4 36 16 20 19,4 17 9,0 80 7,3 N18 7,3 4 84,0 M33 2 G 1 A 5 39 16 21 19,4 17 9,0 80 7,3 N18 7,3 4 11