DIN3021标准弹簧卡箍docxWord文档格式.docx

1、 System: spring band clamp/hose/spigotAnnexes A and B are for information.Warning remarks about applicationThis standard draft is submitted to the public for checking and comments. Since the intended standard may differ from the present version, application of this draft shall be agreed upon in a sp

2、ecial form. Please refer comments to Normenausschuss Eisen-, Blech- und Metallwaren （NA EBM） in DIN, Kaiserswerther Str. 135, D-40474 Duesseldorf.1Field of applicationThis standard is applicable to spring band clamps made from annealed strip steel used to attach hoses to mobile and stationary plants

3、 for application in a temperature range from -40 C to +150 C, in such fields as:-coolant circulation and servo system up to 300 kPa （3 bar） overpressure,-fuel system up to 700 kPa （7 bar） overpressure,-air intake system underpressure,-air charge system up to 200 kPa （2 bar） overpressure,to seal the

4、hose/spigot connection.The spring band clamp, hose and spigot is a system. Please see Annex A for design notes.2References to standardsThis standard comprises dated or undated references, definitions from other publications. These references to standards are quoted at the relevant locations in the t

5、ext, and the other publications are listed below. In the case of dated references, later amendments or revisions of this publications belong to this standard only, if they have been worked into the text by way of amendment or revisions. In the case of undated references the latest issue of the publi

6、cations referred to shall apply.DIN 3021-2Hose clamps - spring band clamps - Part 2: Technical delivery conditions.DIN 3021-3Hose clamps - spring band clamps - Part 3: spring band clamps hose spigotsDIN 6784Workpiece edges - terms, drawing detailsDIN EN 10052Terms for heat treatment of ferrous mater

7、ials; German language version EN 10052: 1993DIN ISO 2768-1General tolerances - Part 1: Tolerances for lengths and angular dimensions without individual tolerances being entered. Identical to ISO 2768-1 : 1989.To be cont. Page 2 to 8Normenausschu? Eisen-, Blech- und Metallwaren （NA EBM） im DIN Deutsc

8、hes Institut f ii r Normung e V3Dime nsions, markingDime nsions in millimetresGen eral tolera nces: ISO 2768-mThe spring band clamps need not correspond to the pictorial representation; only the dimensions specified must be maintain ed.Figure 2: Form BMarking of a spring band clamp Form A with nomin

9、al diameter dn=32 mm and a clamp width of 12 mmClamp DIN 3021 - A - 32x12Desig nati on DIN sta ndard nu mberForm Nominal diameter dnClamp width c Table 1: Dime nsions for Form A, c = 12 mmNomi nal diameterDelivery diameterFully opened diameterMaterial thick nessClamp widthabeghGap dime n.dn1da max.

10、do mi n. s 0.4 c 0.34）max.5） max.0.7丄 6）t max.131214.21413.315.81516.51614.917.50.81715.618.5181917.820.2402018.421.62119.422.52220.524.21.32324.724262523.526.824.3282725.2290.0926.130.231.53032.51.73229.534.53430.636.4353891075.860363941.535.542.54237.544.54337.945.54438.546.54640.548.547502.10.12495243.553515455.872555851.5636557.5687061.5737566782.60.158083857488110907993#