1、STD-AECMA PREN 290L-ENGL $998 LOL23Ll 0025077 458 m AECMA STANDARD NORME AECMA AECMA NORM prEN 2901 Edition P 2 September 1998 PUBLISHED BY THE EUROPEAN ASSOCIATION OF AEROSPACE INDUSTRIES (AECMA) Gulledelle 94 - 8-1200 BRUXELLES - Tel. (+32) 2 775 81 10 - Fax. (+32) 2 775 81 11 ICs: ENGLISH VERSION
2、 Aerospace series Clamps, loop ( P 1 type) with rubber cushioning in corrosion resisting steel Dimensions - Masses Supersedes issue P 1 April 1989 Srie arospatiale Colliers en U P avec profil en caoutchouc en acier inoxydable Dimensions - Masses Luft- und Raumfahrt Schellen in Schlaufenform mit Prof
3、ilgummi aus nichtrostendem Stahl Mae - Massen This “Aerospace Series Prestandard has been drawn up under the of AECMA-Members. It has been technically the concerned Subsequent to the publication of this nt shall not be changed to of the standard. After examination it will be submitted as a draft ati
4、on) for formal vote. I i Replace page 1 of the previous issue by this page I Nota - Extra copies can be supplied by B.N.A.E. - Technopolis 54 - 199, rue Jean-Jacques Rousseau - 921 38 ISSY-LES-MOULINEAUX CEDEX 1 Declassification approved I 1998-09-30 Comments should be sent within six months after t
5、he date of publication to AECMA Gulledelle 94 B-1200 BRUXELLES C4 Chairman Mr Staib aecma 1998 Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I _ AECI
6、A- PREN27JO& m LO12321 0004357 b m Issue P 1 prEt4 2901 Page 2 Con te tit c 1 2 References 3 Required characteristics 3.1 Materials 3.2 Surface treatment 3.3 Configuration - Dimensions - Tolerances 4 Designation 5 Marking 6 Technical specification Scope and field of application Copyright Association
7、 Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AECMA PREN2402 87 m LO22312 0004358 8 Issue P 1 prEN 2901 Page 3 1 Scope and field of application This standard specifies th
8、e required characteristics of loop type clamps in cor rosion resisting steel with various cusliioni ng ma terial s. Clamps to this standard are used for supporting aerospace pipe assemblies aiid electrical cables. For temperature range and environmental considerations see the various material standa
9、rds. 2 Keferencec IS0 2964 - Aerospace - Tubing, outside diameters and thicknesses - Metric IS0 7315 - Aerospace - iiP1i clamps (loop clamps) for fluid systems - Envelope EN 2463 -Aerospace series - Steel FE - FA 13 - Softened - Sheets, strips EN 2516 EN 2900 EN 2905 -Aerospace series - Rubber cushi
10、onings for clamps - Dimensions - dimenc dions dimensions and plates 0,5 mm a 20 mm 31 - Aerospace series - Passvation of corrosion resistant steel 1) -Aerospace series - Clamps - Technical specification 2) Masses 2) 3 Required characteristics 3.1 Materials Clamp : steel EN 2463 Rubber cushionings fo
11、r clamps : ER 2905 3.2 Surface treatment Passivation : EN 2516 3.3 Configuration - Dimensions - Tolerances The configuration shall correspond with the figures. Dimensions shall correspond with the figure atid table. 11 In preparation 2) Published as AECMA pre-standard 31 Published as AECAIA standard
12、 Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Issue P 1 prEN 2901 Page 4 Figure X Possible forms of cushionings with alternative wedge see EN 2905 (
13、 At manufacturers option 1 Figure 1 - Configuration loop clamp with rubber cushioning Edges to be rounded - -.A. - - 2 - Configuration loop clamp represented without rubber cushioning Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANo
14、t for ResaleNo reproduction or networking permitted without license from IHS-,-,-AECMA PREN2701 7 1012311 OOOLi3bO b K 4 $7 5,5 M 12 12,5 13 14 15 16 - 19,s 19,2 20 21 22 23 24,5 26,5 28,5 30,s 31,5 32,5 - - - - - B M DN 4 5 G 8 10 12 14 15 16 18 20 22 25 28 32 36 38 40 - - - - - - - - - I_ - - - -
15、12,3 A - +0,25 9 95 12,7 15,5 5 16,4 - Mass I) EN 2905 kg/1000 pcs cushioning type F to1 er- ance +O ,4 -0 +0,8 -0 Issue P 1 prEN 2901 Page 5 - Dimerisions Dimensions in millimetres R max. 2 5 Untoleranced dimensions : 5 0,4 1)Data referring to the elastomer specific mass of 1,2 g/cm3 1 Nedged 1K 2K
16、 21 31 Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AECMA PREN2901 89 m 10l123LL 000Lt3bL 8 m Descript ion block Issue P 1 prEN 2901 Page 6 Identity
17、 block 7 4 Designation Number of EN standard G = Code letter for cushioning material (see EN 2905) DN = Nominal diameter Note : if necessary the originator code 19005 may be introduced between the description block and the identity block. 5 Marking In addition to the manufacturers own marking each c
18、lamp shall be marked in the position indicated using the identity block as defined ir: clause 4 of this standard. Marking method is at the manufacturers option. 6 Technical specification As per EN 2900. Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
