This standard replaces JB 85-59. This standard specifies the type and size of flanged plate loose steel pipe flanges with a nominal pressure PN of 0.25 and 0.6MPa. This standard applies to flanged plate loose steel pipe flanges with nominal pressures PN0.25 and 0.6MPa. JB/T 85-1994 flanged plate loose steel pipe flange JB/T85-1994 standard download and decompression password: www.bzxz.net
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Machinery Industry Standard of the People's Republic of China Flanged plate loose steel pipe flange Theme content and scope of application JB/T85---94 Generation JB85 ---59 This standard specifies the type and size of flanged plate loose steel pipe flanges with a nominal pressure PN of 0.25.0.6MPa. This standard is applicable to flanges with nominal pressures PN0.25 and 0.6MPa. Side plate loose steel pipe flange. 2 Reference standard JB/74 Pipeline flange technical conditions 3 The flange type and scale correspond to Figure 1 and Table 1. The technical requirements of pipe foam 30° D Figure 1 4 flange are in accordance with the requirements of JB/T74. The nominal pressure and the maximum allowable working pressure at different temperatures are in accordance with the provisions of Appendix B of JB/T74, 6 marking example nominal diameter 300mm, nominal pressure 0.6MPa, flanged plate loose steel with size series 2 Pipe flange; flange 300-6 JB/T 85--94 Flanged plate loose steel pipe flange with nominal diameter 300mm, nominal pressure 0.6MPa, size series 1: French cover 300 -6 Series 1) JB/T85—94 The Ministry of Machinery Industry of the People's Republic of China approved on 1994-12-09 for implementation on 1995-10-01 391 Nominal name Diameter DN 10 15 20 25 32 40 50 65 803 100 125 150 (175) arm Flange outer diameter Outer A 18 25 32 38 45||tt| |57 73 89 1) [Series 1/ Series 2 75 80| |tt||90 100 120 130 140 160 190/185 108| |tt||133 159 194 200 219 (225) 245 250| |tt||300 273 325 210/205 240/235 265/260 290||tt ||JB/T85 ---94 Table 1 PN0.25 and O.6MPa flanged plate loose steel pipe flange size ruler Connection||tt| |Bolt hole Center circle Diameter K 50 55 65 75||tt| |90 100 110 130 150 170 200 225 255 320/315 340 375/370 440/435 280 305 335|| tt||395 Bolt hole Diameter L Series 1/ Series 2 12 12 12 12 14 14 14 14 18 18|| tt||18 18 18 18 18 18 23 Screws, studs| |tt||Thread Th, Quantity 4 4 4 4 4 4| |tt||4 4 4 8 8 8 8 12||tt ||12 Series 1/ Series 2 M10 M10 M10 M1O M12|| tt||M12 M12 M12 M16 M16 M16 M16 M16||tt| |M16 M16 M16 M20 Flange Thickness 10 10 10 12 12 12 12 14 14 11 14| |tt||16 18 18 20 20 24 flange inner diameter|| tt||B 16 2 27 34 41 48 60||tt| |80 93 112 138 164 200 225 251 279 331 turn over the ring S min 11.8 32 40 50 60 70 80 90 110 125 145Www.bzxZ.net 175|| tt||200 230 2 2 2 2.6 min 3||tt| |3 3.5 2.6 3.5 2.6 3. 2.63.5 3.2||tt ||3.2 3.2 3.2 3.2 2553.2 280 310 362 4 4 4 5 5 5 h Inin 9| |tt||12 15 15 17 23 23 23 28||tt ||30 30 30 30 30 30 35 im Theoretical quality ks Flange ring 0.30:1 0.02 0. 340.033 0.120.05 0. 61 : 0. 07 1 0. 88 : 0. 1i 1.22 0.14 11. Os 1. 59 0. 2.1 2.100 .36 2.60.48 2.90) 0.65 3. 760. 73 4.610.85 5 3. 110 . 97 5 6. 171. 3 6. 801. 5 510.851.56 Note: The connection dimensions of series 1 flanges in the table are interchangeable with the national standard and German flange standards, and the dimensions of series 2 are interchangeable with the flange dimensions of the original machine standard: Series 1 dimensions should be used first in the design of new products. The theoretical weight of flanges listed in the table refers to series 2 flanges. Additional notes: This standard was proposed and assigned by the Mechanical Standardization Research Institute of the Ministry of Machinery Industry. This standard was drafted by the Mechanical Standardization Research Institute of the Ministry of Machinery Industry and Harbin Boiler Factory. The main drafters of this standard are Li Junying and Wu Zhenjia. 392 Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.