SN 430-2-2007 O-rings Dimensions of Mounting Spaces(英德).pdf

April 2007 O-Rings Dimensions and Mounting Spaces SN 430 Part 2 Dimensions in mm Substitute for SN 430/12.79 General O-rings according to this Standards should no longer be adopted in new designs, except for those O-rings that are used for welding-cone pipe couplings. For newly designed equipment, O-rings conforming to SN 430 Part 1, are to be employed. . Deisgnation of an O-ring, inside diameter d1 = 70 mm, cross-section diameter d2 = 5 mm, type characterisitcs N, material NBR with 70 IRHD (NBR70): O-Ring SN 430 70 x 5 N1 NBR 70 Trade Name Perbunan Viton Material: (Identification symbol to DIN ISO1629) N B R FPM Basis - Elastomer Acryl nitrile butadiene rubber Flourine-rubber Temperature resistance -30 C to +100 C -10 C to +200 C Shore-A hardness 70 5 70 5 1) O-rings with type characteristics N are destined for general applicaitons. Continued on page 2 and 3 Bearbeitet: Normung The reproduction, distribution and utilization of this document as well as the disclosure of its content to others without prior explicit written consent of SMS Demag AG is prohibited. Holder has to protect this document against unauthorized withdrawal of third parties. Offenders will be held liable for the payment of damages. All rights reserved in case of patent/utility model/trademark protection. 13.09.02 d1 d1 No guarantee can be given in respect of this translation In all cases the latest German-language version of this standard shall be taken as authoritative Diese Kopie wird bei nderung nicht bercksichtigt ! Page 2 SN 430 Part 2 : 2007-04 Inside diameters and cross-section diameter d1 d2 d1 d2 6 2 62 4 7,5 1) 1,5 64 3 8 2 65 3,5 9 1) 1,5 67 4 10 2 69 3 12 1) 2 70 5 14 2 73 3,5 16 2 76 3 16,3 1) 2,4 76 5 18 2 80 5 19 3 90 5 20 2,5 92 4 20,3 1) 2,4 95 3 22 3 99 3 24 3 100 5 25 2,5 105 5 25,3 1) 2,4 110 5 28 2,5 110,5 7 29 3 113 3,5 30 2,5 120 5 32 3 125 5 33,3 1) 2,4 130 5 34 3 140 5 35 2,5 150 5 38 3 158,1 7 39 3 170 5 40 2,5 190 5 42 3 200 6 44 3 210 4 45 2,5 225 5 48 4 240 5 49 4 250 5 50 2,5 270 5 53 3,5 340 6 55 2,5 360 5 57 4 365 5 58 3,5 380,37 6,99 59 3 430,66 6,99 60 5 460 5 The O-rings listed in the table are carried in stock. For round rubber serving general sealing purposes, see SN 426 (13.08). Dynamic seal Static seal Slot sizes d2 b1 +0,2 b2 +0,2 t1 0,05 t2 0,05 z r1 1,5 1,9 1,9 1,1 1,3 2 0,2 2 2,6 2,4 1,5 1,7 2,5 0,2 2,4 3,1 2,9 1,8 2,1 2,5 0,2 2,5 3,2 3 1,9 2,2 2,5 0,3 3 3,9 3,6 2,3 2,6 3 0,3 3,5 4,5 4,2 2,7 3,05 4 0,4 4 5,2 4,8 3,15 3,5 4 0,4 5 6,5 6 4 4,45 4 0,5 6 7,8 7,2 4,95 5,4 5 0,5 7 9,1 8,4 5,85 6,3 5 0,5 Surfaces Pulsating pressure Slot bottom Ra = 1,6 m Slot flanks Ra = 1,6 m Sealing surface according to range in application Nonpulsating pressure Slot bottom Ra = 3,2 m Slot flanks Ra = 3,2 m Sealing surface according to range of application 1) O-Rings for welding-cone pipe couplings Page 3 SN 430 Part 2 : 2007-04 Exclusion from use in SAP For preparing drawings and bills of materials by means of SAP, this standard is not to be applied. In SAP, the abovementioned parts are created as DIN standard part ma