Steel flanges GOST DN 15-200

Steel flanges GOST DN 15-200

Standard GOST12820, GOST12821
Series BREEZE Pipeline
Material steel3sp
Pressure PN10, PN16, PN25

Goods description

Plane flanges according to GOST 12820 (from DN15 to DN200 with PN 10, 16, 25) and weld neck flanges according to GOST 12821 (from DN15 to DN200 with PN 16, 25) are designed for connection of pipes of process pipelines with operating media temperature from minus 30 to plus 300 ℃. The flanges are made of steel 20 according to GOST 1050 and 3sp according to GOST 535 by using hot forging method in accordance with GOST 7505 and GOST 8479.

Connection dimensions of a flange according to GOST 12820

PLANE FLANGE PN10

  Code DN PN D D1 D2 d1 T h d n W
Фланці сталеві 10/25 20.10.015-001 15 10 95 65 47 19 10 2 14 4 0.51
20.10.020-001 20 10 105 75 58 26 12 2 14 4 0.74
20.10.025-001 25 10 115 85 68 33 12 2 14 4 0.89
20.10.032-001 32 10 135 100 78 39 14 2 18 4 1.40
20.10.040-001 40 10 145 110 88 46 15 3 18 4 1.71
20.10.050-001 50 10 160 125 102 59 15 3 18 4 2.06
20.10.065-001 65 10 180 145 122 78 17 3 18 4 2.80
20.10.080-001 80 10 195 160 133 91 17 3 18 8 3.01
20.10.080-002 80 10 195 160 133 91 17 3 18 4 3.15
20.10.100-001 100 10 215 180 158 110 19 3 18 8 3.96
20.10.125-001 125 10 245 210 184 135 21 3 18 8 5.40
20.10.150-001 150 10 280 240 212 161 21 3 22 8 6.62
20.10.200-001 200 10 335 295 268 222 21 3 22 8 8.05
  Code DN PN D D1 D2 d1 T h d n W

PLANE FLANGE PN16

  Code DN PN D D1 D2 d1 T h d n W
Фланці сталеві 10/25 20.16.015-001 15 16 95 65 47 19 12 2 14 4 0.61
20.16.020-001 20 16 105 75 58 26 14 2 14 4 0.86
20.16.025-001 25 16 115 85 68 33 14 2 14 4 1.17
20.16.032-001 32 16 135 100 78 39 16 2 18 4 1.58
20.16.040-001 40 16 145 110 88 46 17 3 18 4 1.96
20.16.050-001 50 16 160 125 102 59 19 3 18 4 2.58
20.16.065-001 65 16 180 145 122 78 21 3 18 4 3.42
20.16.080-001 80 16 195 160 133 91 21 3 18 8 3.71
20.16.100-001 100 16 215 180 158 110 23 3 18 8 4.73
20.16.125-001 125 16 245 210 184 135 25 3 18 8 6.38
20.16.150-001 150 16 280 240 212 161 25 3 22 8 7.81
20.16.200-001 200 16 335 295 268 222 27 3 22 12 10.10
  Code DN PN D D1 D2 d1 T h d n W

PLANE FLANGE PN25

  Code DN PN D D1 D2 d1 T h d n W
Фланці сталеві 10/25 20.25.015-001 15 25 95 65 47 19 14 2 14 4 0.70
20.25.020-001 20 25 105 75 58 26 16 2 14 4 0.98
20.25.025-001 25 25 115 85 68 33 16 2 14 4 1.17
20.25.032-001 32 25 135 100 78 39 18 2 18 4 1.77
20.25.040-001 40 25 145 110 88 46 19 3 18 4 2.18
20.25.050-001 50 25 160 125 102 59 21 3 18 4 2.71
20.25.065-001 65 25 180 145 122 78 21 3 18 8 3.22
20.25.080-001 80 25 195 160 133 91 23 3 18 8 4.06
20.25.100-001 100 25 230 190 158 110 25 3 22 8 5.92
20.25.125-001 125 25 270 220 184 135 27 3 26 8 8.26
20.25.150-001 150 25 300 250 212 161 27 3 26 8 10.51
20.25.200-001 200 25 360 310 268 222 29 3 26 12 13.34
  Code DN PN D D1 D2 d1 T h d n W

Connection dimensions of a flange according to GOST 12821

WELDED NECK FLANGE PN16

  Code DN PN D D1 D2 D3 d1 T h d n W
Фланці сталеві 16/40 2116.015-001 15 16 95 65 47 19 12 12 2 14 4 0.68
21.16.020-001 20 16 105 75 58 26 18 12 2 14 4 0.87
21.16.025-001 25 16 115 85 68 33 25 12 2 14 4 1.05
21.16.032-001 32 16 135 100 78 39 31 13 2 18 4 1.54
21.16.040-001 40 16 145 110 88 46 38 13 3 18 4 1.85
21.16.050-001 50 16 160 125 102 58 49 13 3 18 4 2.28
21.16.065-001 65 16 180 145 122 77 66 15 3 18 4 3.19
21.16.080-001 80 16 195 160 133 90 78 17 3 18 8 4.21
21.16.100-001 100 16 215 180 158 110 96 17 3 18 8 4.90
21.16.125-001 125 16 245 210 184 135 121 19 3 18 8 6.75
21.16.150-001 150 16 280 240 212 161 146 19 3 22 8 8.30
21.16.200-001 200 16 335 295 268 222 202 21 3 22 12 11.79
  Code DN PN D D1 D2 D3 d1 T h d n W

WELDED NECK FLANGE PN25

  Code DN PN D D1 D2 D3 d1 T h d n W
Фланці сталеві 16/40 21.25.015-001 15 25 95 65 47 19 12 14 2 14 4 0.79
21.25.020-001 20 25 105 75 58 26 18 14 2 14 4 0.97
21.25.025-001 25 25 115 85 68 33 25 14 2 14 4 1.18
21.25.032-001 32 25 135 100 78 39 31 16 2 18 4 1.83
21.25.040-001 40 25 145 110 88 46 38 16 3 18 4 2.19
21.25.050-001 50 25 160 125 102 58 49 17 3 18 4 2.78
21.25.065-001 65 25 180 145 122 77 66 19 3 18 8 3.71
21.25.080-001 80 25 195 160 133 90 78 19 3 18 8 4.44
21.25.100-001 100 25 230 190 158 110 96 21 3 22 8 6.51
21.25.125-001 125 25 270 220 184 135 121 23 3 26 8 9.41
21.25.150-001 150 25 300 250 212 161 146 25 3 26 8 12.52
21.25.200-001 200 25 360 310 268 222 202 27 3 26 12 17.44
  Code DN PN D D1 D2 D3 d1 T h d n W

WELDED NECK FLANGE PN40

  Code DN PN D D1 D2 D3 d1 T h d n W
Фланці сталеві 16/40 21.40.015-001 15 40 95 65 47 19 12 14 2 14 4 0.79
21.40.020-001 20 40 105 75 58 26 18 14 2 14 4 0.97
21.40.025-001 25 40 115 85 68 33 25 14 2 14 4 1.18
21.40.032-001 32 40 135 100 78 39 31 16 2 18 4 1.83
21.40.040-001 40 40 145 110 88 46 38 16 3 18 4 2.19
21.40.050-001 50 40 160 125 102 58 49 17 3 18 4 2.81
21.40.065-001 65 40 180 145 122 77 66 19 3 18 8 3.71
21.40.080-001 80 40 195 160 133 90 78 21 3 18 8 4.80
21.40.100-001 100 40 230 190 158 110 96 23 3 22 8 7.40
21.40.125-001 125 40 270 220 184 135 121 25 3 26 8 10.00
21.40.150-001 150 40 300 250 212 161 146 27 3 26 8 13.03
21.40.200-001 200 40 375 320 268 222 200 35 3 30 12 24.44
  Code DN PN D D1 D2 D3 d1 T h d n W