1、ASD STANDARD NORME ASD ASD NORM prEN 3730 Edition P 2 December 2008 PUBLISHED BY THE AEROSPACE AND DEFENCE INDUSTRIES ASSOCIATION OF EUROPE - STANDARDIZATIONAvenue de Tervuren, 270 - B-1150 Brussels - Tel. + 32 2 775 8126 - Fax. + 32 2 763 3565 - www.asd-stan.orgICS: Supersedes edition P 1 September
2、 1998 Will supersede EN 3730:2001Descriptors: ENGLISH VERSION Aerospace series Clamps, saddle fixed and sliding version in aluminium alloy with rubber cushioning Dimensions, masses Srie arospatiale Colliers du type “Omga“ avec serrage ou coulissants en alliage daluminium avec profil en lastomre Dime
3、nsions, masses Luft- und Raumfahrt Schellen in Sattelform aus Aluminiumlegierung mit Profilgummi fr feste und gleitende Rohrhalterung Mae, Massen This “Aerospace Series“ Prestandard has been drawn up under the responsibility of ASD-STAN (The AeroSpace and Defence Industries Association of Europe - S
4、tandardization). It is published for the needs of the European Aerospace Industry. It has been technically approved by the experts of the concerned Domain following member comments. Subsequent to the publication of this Prestandard, the technical content shall not be changed to an extent that interc
5、hangeability is affected, physically or functionally, without re-identification of the standard. After examination and review by users and formal agreement of ASD-STAN, it will be submitted as a draft European Standard (prEN) to CEN (European Committee for Standardization) for formal vote and transf
6、ormation to full European Standard (EN). The CEN national members have then to implement the EN at national level by giving the EN the status of a national standard and by withdrawing any national standards conflicting with the EN. Edition approved for publication 31 december 2008 Comments should be
7、 sent within six months after the date of publication to ASD-STAN Mechanical Domain Copyright 2008 by ASD-STAN prEN 3730:20082 Contents Page Foreword2 1 Scope 3 2 Normative references 3 3 Required characteristics.3 4 Designation 8 5 Marking 11 6 Technical specification 11 Foreword This standard was
8、reviewed by the Domain Technical Coordinator of ASD-STANs Mechanical Domain. After inquiries and votes carried out in accordance with the rules of ASD-STAN defined in ASD-STANs General Process Manual, this standard has received approval for Publication. prEN 3730:20083 1 Scope This standard specifie
9、s the required characteristics of saddle clamps in aluminium alloy with various cushion materials. These clamps, fixed version (type 1) or sliding version (type 2), are used for supporting pipe assemblies. They are used up to 80 C max. Usage at a higher temperature is at the option of the user. For
10、temperature range and environmental considerations see the various cushion material standards. 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 ed
11、ition of the referenced document (including any amendments) applies. EN 2261, Aerospace series Silicone rubber (VMQ) Hardness 70 IRHD. EN 2424, Aerospace series Marking of aerospace products. EN 2437, Aerospace series Chromate conversion coatings (yellow) for aluminium and aluminium alloys. EN 2566,
12、 Aerospace series Fluorocarbon rubber (FPM) Hardness 70 IRHD. 1)EN 2693, Aerospace series Aluminium alloy AL-P5086- H 111 Sheet and strip 0,3 mm a 6 mm. EN 3078, Aerospace series P, Q and saddle clamps with rubber cushion Technical specification. 1)EN 3825, Aerospace series Fluorosilicone rubber (FV
13、MQ) Hardness 60 IRHD. 1)EN 3826, Aerospace series Fluorosilicone rubber (FVMQ) Hardness 70 IRHD. 1)EN 4115, Aerospace series Cushion, rubber for clamps Dimensions, masses. 3 Required characteristics 3.1 Materials According to Table 1. Clamp: Aluminium alloy according to EN 2693. Cushion: According t
14、o EN 4115. 1) Published as ASD Prestandard at the date of publication of this standard. prEN 3730:2008 4 Table 1 Cushion materials Cushion material code Elastomer Colour S Silicone VMQ EN 2261 Rust F Fluorosilicone FVMQ EN 3826 a Blue V Fluorocarbon FPM EN 2566 b Brown aAlternative EN 3825. bAlterna
15、tive Fluorocarbon rubber (FPM) Hardness 75 IRHD. 3.2 Surface treatment According to Table 2. Table 2 Surface treatment Treatment Code None 0 Yellow chromating per EN 2437 1 3.3 Configuration Dimensions Masses See Figures 1 to 5 and Tables 3 and 4. Dimensions are in millimetres. Rubber cushion dimens
16、ions, see EN 4115. prEN 3730:2008 5 aTop half, form A bBottom half, form B cRubber cushion according to EN 4115 Figure 1 Configuration, complete clamp, type 1 (fixed version: code J) Rubber cushion dimensions, see EN 4115. aTop half, form C bBottom half, form B cRubber cushion according to EN 4115 F
17、igure 2 Configuration, complete clamp, type 2 (sliding version: code K) prEN 3730:2008 6 aArea for marking bLength = d/2 Figure 3 Configuration, form B, clamp bottom half, common to types 1 and 2 aArea for marking Figure 4 Configuration, form A, clamp top half, fixed version, type 1 prEN 3730:20087
18、aArea for marking Figure 5 Configuration, form C, clamp top half, sliding version, type 2 Table 3 Dimensions b1b2adbh1 h2 h3 l1 l2 l3 r s ac Diameter code 0,25 max. 0,4 0,4 0,4 max. 0,4 0,4 min. Cushion type size according to EN 4115 12 9,5 14,4 12 9,6 6,8 8,7 41,5 32,0 16 0,8 1N 16 16 11,6 8,4 10,3
19、 51,0 40,0 20 20 20 13,6 10,4 12,3 55,0 44,0 24 25 25 16,1 12,9 14,8 60,0 49,0 29 2,0 1,5 to 1,9 1 3N 32 32 21,0 17,4 19,7 68,0 57,0 36 40 40 25,0 21,4 23,7 76,0 65,0 44 50 50 30,0 26,4 28,7 86,0 75,0 54 63 63 36,5 32,9 35,2 99,0 88,0 66 70 70 40,0 36,4 38,7 106,0 95,0 74 80 12,7 18,080 45,0 41,4 43
20、,7 116,0 106,0 84 3,2 1,5 to 2,3 1,5 6N NOTE The required dimensions l1, l2, h2, h3should be in accordance with this standard when the clamps are completed and installed. aAs per EN 4115. bOutside diameter of the corresponding pipe. cTolerances in accordance with semi-finished product. prEN 3730:200
21、88 Table 4 Masses Top half, type 1 Top half, type 2 Bottom half Assembly type 1 Assembly type 2 Mass Mass Mass Mass Mass Diameter code kg/1 000 pieces kg/1 000 pieces kg/1 000 pieces kg/1 000 pieces kg/1 000 pieces 12 3,75 3,85 2,01 5,76 5,86 16 4,59 4,79 2,34 6,93 7,13 20 5,19 5,39 2,63 7,82 8,02 2
22、5 6,57 6,77 3,08 9,65 9,85 32 9,00 9,32 3,70 12,70 13,02 40 11,00 11,32 4,20 15,20 15,52 50 13,30 13,62 5,10 18,40 18,72 63 16,30 16,62 6,20 22,50 22,82 70 18,40 18,72 7,00 25,40 25,72 80 20,60 20,92 7,90 28,50 28,82 NOTE 1 Data referring to the elastomer specific mass of 1,2 g/cm3for silicone rubbe
23、r cushion material (see EN 4115 for other cushion materials). NOTE 2 For correct mass values the supplier has to be contacted. 4 Designation 4.1 Complete clamp, type 1 EXAMPLE Description block CLAMP, FIXED Identity block EN3730F20J1 Number of this standard Code letter for cushion material (see Tabl
24、e 1) Diameter code (see Table 3) Code letter for fixed clamp (see Figure 1) Code for surface treatment (see Table 2) NOTE If necessary, the code I9005 shall be placed between the description block and the identity block. prEN 3730:20089 4.2 Complete clamp, type 2 EXAMPLE Description block CLAMP, SLI
25、DING Identity block EN3730F20K1 Number of this standard Code letter for cushion material (see Table 1) Diameter code (see Table 3) Code letter for sliding version (see Figure 2) Code for surface treatment (see Table 2) NOTE If necessary, the code I9005 shall be placed between the description block a
26、nd the identity block. 4.3 Clamp top half, form A EXAMPLE Description block CLAMP, TOP, FIXED Identity block EN3730F20A1 Number of this standard Code letter for cushion material (see Table 1) Diameter code (see Table 3) Code letter for form (see Figure 4) Code for surface treatment (see Table 2) NOT
27、E If necessary, the code I9005 shall be placed between the description block and the identity block. prEN 3730:200810 4.4 Clamp top half, form C EXAMPLE Description block CLAMP, TOP, SLIDING Identity block EN3730F20C1 Number of this standard Code letter for cushion material (see Table 1) Diameter co
28、de (see Table 3) Code letter for form (see Figure 5) Code for surface treatment (see Table 2) NOTE If necessary, the code I9005 shall be placed between the description block and the identity block. 4.5 Clamp bottom half, form B EXAMPLE Description block CLAMP, BOTTOM Identity block EN3730F20B1 Numbe
29、r of this standard Code letter for cushion material (see Table 1) Diameter code (see Table 3) Code letter for form (see Figure 3) Code for surface treatment (see Table 2) NOTE If necessary, the code I9005 shall be placed between the description block and the identity block. prEN 3730:200811 5 Markin
30、g According to EN 2424, style B and Figures 3 to 5. It shall contain: number of the standard, diameter code, code letter for form. EXAMPLE EN 373020B cushion material indicated by colour of cushion (see Table 1), surface treatment indicated by colour of metallic band. 6 Technical specification According to EN 3078.
