GOST-12815-1980-ENG.pdf
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1、 USSR STATE STANDARD FLANGES FOR FITTINGS AND PIPELINES for Pnom from 0.1 to 20.0 Mpa (from 1 to 200 kgf/cm2) GOST 12815-80 Official Edition English Version Approved by Interstandard STANDARDS PUBLISHING HOUSE Moscow GOST 12815-80 2 UDC 621.643.412:006.354 Group 18 USSR STATE STANDARD FLANGES FOR FI
2、TTINGS AND PIPELINES for Pnom from 0.1 to 20.0 Pa (from 1 to 200 kgf/cm2) Types. Connecting dimensions and dimensions of sealing surfaces OKP (ALL-Union Product Classification Code) 37 9941 GOST 12815-80 (CMEA STANDARD 3249-81, CMEA STANDARD 3250-81, CMEA STANDARD 3251-81) In place of GOST 1233-67 a
3、nd GOST 1234-67 Date of introduction set by Decree No. 2238, dated 20.05.80, of the USSR State Committee for Standards From 01.01.83 Restriction of validity is removed by Gosstandart Decree No. 402, dated 15.04.92 1. This Standard applies to flanges for pipelines and fittings, and also to connecting
4、 flanges for fittings, machines, devices, branch pipes of devices and pressure tanks designed for nominal pressure nom from 0.1 to 20.0 MPa (from 1 up to 200 kgf/cm2) and medium temperature from 20 to 873 K (from -253 to 600 ), and also to flanges with liners made from fluoroplastic-4 designed for n
5、ominal pressure nom from 0.1 to 20.0 MPa (from 1 to 200 kgf/cm2) and medium temperature from 73 to 473 K (from -200 to 200 ), and may be used for their certification. This Standard does not apply to flanges for pipelines of transport machines if these flanges are not designed for connection of fitti
6、ngs or general-duty devices, and also to flanges standardized in accordance with GOST 1536-76 and GOST 4433-76. Official Edition Reprinting is prohibited * Revised Edition (December 1996) with Amendments Nos. 1, 2, 3, 4 and 5, approved in March 1983, December 1983, December 1987, September 1989 and
7、April 1992. (IUS Standards Information Catalog 6-83, 3-84, 4-88, 12-89, 7-92). Correction is inserted (IUS Standards Information Catalog No. 11, 2005) Standards Publishing House, 1980 Standards Publishing House, 1997 -,-,- GOST 12815-80 3 The requirements of clauses 1 to 3; 5; 6 and 10 to 12 of this
8、 Standard are obligatory, other requirements are recommended. (Amended Wording, Amendment No. 5). 2. Flange types and key parameters shall comply with those specified in table 1, the connecting dimensions, the dimensions and modifications of sealing surfaces shall comply with those specified in figs
9、. 1 to 6 and in tables 2 to 11, except for dimensions of tenon-mortise sealing surfaces for fluoroplastic liners, which shall comply with those specified in fig. 6 and in table 12. T a b l e 1 Flange type Nominal pressure nom, MPa (kgf/cm2) Nominal bore Dnom, mm 0.1; 0.25 (1; 2.5)15 to 3 000 0.6 (6)
10、15 to 2 400 1.0 (10)15 to 2 000 Cast from grey iron in accordance with GOST 12817-80 1.6 (16)15 to 1 000 Cast from malleable cast iron in accordance with GOST 12818-80 1.6; 2.5; 4.0 (16; 25; 40) 15 to 80 1.6 (16)15 to 1 600 2.5 (25)15 to 1 400 4.0 (40)15 to 800 6.3 (63)15 to 600 10 (100)15 to 400 16
11、 (160)15 to 300 Cast from steel in accordance with GOST 12819-80 20 (200)15 to 250 0.1; 0.25 (1; 2.5)10 to 2 400 0.6 (6)10 to 1 600 1.0 (10)10 to 1 600 1.6 (16)10 to 1 200 Steel, flat, welded in accordance with GOST 12820-80 2.5 (25)10 to 800 0.1; 0.25; 0.6 (1; 2.5; 6)10 to 1 600 1.0; 1.6; 2.5; 4.0
12、(10; 16; 25; 40)10 to 1 200 6.3 (63)10 to 400; 500 to 1 200 10 (100)10 to 400 16 (160)15 to 300 Steel, butt welded in accordance with GOST 12821-80 20 (200)15 to 250 Steel, loose, ring welded in accordance with GOST 12822-80 0,1; 0,25; 0,6; 1,0; 1,6; 2,5 (1; 2,5; 6; 10; 16; 25) 10 to 500 GOST 12815-
13、80 4 Modification 1 flange with connecting projection Version (square flange) n bores d Lengthwise outline Fig. 1. Modification 2 flange with projection Modification 3 flange with deepening n bores d n bores d Fig. 2 -,-,- GOST 12815-80 5 Modification 4 flange with tenon Modification 5 flange with m
14、ortise Fig. 3 Modification 6 flange for lens liner Modification 7 flange for liner of oval section Fig. 4 Fig. 5 -,-,- GOST 12815-80 6 Modification 8 Modification 9 Fig. 6 N o t e s to figs. 1 to 6: 1. Processing of surfaces A with roughness Ra 100 microns is allowed. 2. Processing of surfaces with
15、roughness Ra 25 microns with circular direction of irregularities is allowed. 3. It is allowed to carry out the rounding instead of 45 . -,-,- GOST 12815-80 7 T a b l e 2 Pnom 0.1 and 0.25 MPa (1.0 and 2.5 kgf/cm2) D i m e n s i o n s in mm D3 D4 D5 D6 d n h1 h2 Nominal diameter of bolts or studs No
16、minal bore Dnom D D1 D2 Series 1 Series 2 Series 1 Series 2 Series 1 Series 2 Series 1 Series 2 Series 1 Series 2 Series 1 Series 2 h Series 1 Series 2 Series 1 Series 2 B Series 1 Series 2 10 75 50 35 20 19 30 29 19 18 31 30 60 15 80 55 40 25 23 35 33 24 22 36 34 65 20 90 65 50 32 33 46 43 31 32 47
17、 44 70 25 100 75 60 39 41 53 51 38 40 54 52 11 11 75 10 10 32 120 90 70 49 49 63 59 48 48 64 60 2 95 40 130 100 80 56 55 70 69 55 54 71 70 100 50 140 110 90 69 66 83 80 68 65 84 81 110 65 160 130 110 89 86 10310088 85 104101 14 14 125 12 12 80 185 150 128 103 101117115102100118116 4 3 140 100 205 17
18、0 148 123 117143137122116144138 4 4 155 125 235 200 178 149 146169166148145170167 150 260 225 202 176 171196191175170197192 (175) 290 255 232 206 203226223205202227224 200 315 280 258 231 229251249230228252250 (225) 340 305 282 256 256276276255255277277 8 8 250 370 335 312 286 283306303285282307304
19、18 18 12 12 3 1.5 4 3.5 3 16 16 -,-,- GOST 12815-80 8 Table 2 (Cont.) D i m e n s i o n s in mm D3 D4 D5 D6 d n h1 h2 Nominal diameter of bolts or studs Nominal bore Dnom D D1 D2 Series 1 Series 2 Series 1 Series 2 Series 1 Series 2 Series 1 Series 2 Series 1 Series 2 Series 1 Series 2 h Series 1 Se
20、ries 2 Series 1 Series 2 B Series 1 Series 2 300 435 395 365 336 336 356 356 335 335357 3574.53.5 350 485 445 415 381 386 407 406 380 385408 407 12 12 400 535 495 465 431 436 457 456 430 435458 457 (450) 590 550 520 481 489 507 509 480 488508 510 16 500 640 600 570 531 541 557 561 530 540558 562 22
21、22 16 4 5 4 20 20 600 755 705 670 631 635 657 661 630 634658 662 20 20 (700) 860 810 775 736 737 762 763 735 736763 764 26 26 24 24 800 975 920 880 841 841 867 867 840 840868 868 5 6 4 5 (900) 1075 1020 980 24 24 1000 1175 1120 1080 28 28 1200 1375 1320 1280 32 32 1400 1575 1520 1480 36 36 1600 1785
22、 1730 1690 40 40 (1800) 1985 1930 1890 44 44 2000 2190 2130 2090 30 30 48 48 5 27 27 (2200) 2405 2340 2295 52 52 2400 2605 2540 2495 56 56 (2600) 2805 2740 2695 33 33 60 60 30 30 (2800) 3035 2960 2910 64 64 3000 3240 3160 3110 36 39 68 68 6 M33 36 -,-,- GOST 12815-80 9 T a b l e Pnom 0.6 MPa (6 kgf/
23、cm2) D i m e n s i o n s in mm Nominal bore D D1 D2 D3 D4 D5 D6 d h h1 h2 B Nominal diameter of bolts or studs Series 1 Series 2 Series 1 Series 2 Series 1 Series 2 Series 1 Series 2 Series 1 Series 2 Series 1 Series 2 Series 1 Series 2 Series 1 Series 2 Series 1 Series 2 10 75 50 35 20 19 30 29 19
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