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Email:sales@dao-fang.com
Office in USA
1551 WINCHESTER DR.
WESTLAKE, OH
44145
Phone: +1 216 860 5238
Office in China (Mainland)
0703, FLOOR 7, BUILDING NO 2,
YARD NO 1, WU LI QIAO ER JIE,
CHAOYANG DISTRICT,
BEIJING 100024, CHINA
Phone:+86 13601389973
Tel:+86 (0)10 57571370
Fax:+86 (0)10 85816846
Literature

Welding Flanges

Welding Flanges

Quality Assurance: 
Vigilant checks and traceable records on incoming raw materials, Metallurgy, Nodularity, Chemical components, Dimensions, Tensile Strength, Elongation, Brinell Hardness, Hydrostatic/Air, Thickness of lining and coating, etc., in accordance with International Standards and per customised specific requirements.
Size Range:  DN80—DN2600
Joint Type:  Tyton/ Mechanical Joint / NI / NII
Specifications:
Ductile iron and casting iron fittings in accordance with ISO2531, BS EN545, BS EN598, BS EN12842, ANSI\AWWA C110 and ANSI\AWWA C153.
Packaging:
Wooden crates or pallets; Heat Treatment or Methyl Bromide treatment on customized requirements.

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PN10
DN D K d C c e f N R S Bolt Holes
L No.
80 200 160 132 16 3 7 12 42 6 6 19 8
100 220 180 156 16 3 7 12 42 6 6 19 8
125 250 210 184 16 3 10 15 43 8 6 19 8
150 285 240 211 16 3 10 15 45 8 6 23 8
200 340 295 266 17 3 10 15 50 10 6 23 8
250 400 350 319 19 3 10 15 55 10 6 23 12
300 455 400 370 20.5 4 10 15 60 10 6 23 12
350 505 460 429 20.5 4 10 15 65 10 6 23 16
400 565 515 480 20.5 4 13 18 70 10 8 28 16
450 615 565 527 21.5 4 13 18 75 12 8 28 20
500 670 620 582 22.5 4 13 18 80 12 8 28 20
600 780 725 682 25 5 13 18 90 12 9 31 20
700 895 840 794 27.5 5 16 20 100 12 9 31 24
800 1015 950 901 30 5 16 20 100 12 9 34 24
900 1115 1050 1001 32.5 5 16 20 115 15 9 34 28
1000 1230 1160 1112 35 5 18 22 120 15 10 37 28
1100 1340 1270 1215 37.5 5 18 22 120 15 10 37 32
1200 1455 1380 1328 40 5 18 22 120 15 10 40 32
1400 1675 1590 1530 41 5 20 24 125 15 10 43 36
1600 1915 1820 1750 44 5 20 24 130 15 15 49 40
1800 2115 2020 1950 47 5 20 24 135 18 15 49 44
2000 2325 2230 2150 50 5 22 26 140 18 15 49 48

PN16
DN D K d C c e f N R S Bolt Holes
L No.
80 200 160 132 16 3 7 12 42 6 6 19 8
100 220 180 156 16 3 7 12 42 6 6 19 8
125 250 210 184 16 3 10 15 43 8 6 19 8
150 285 240 211 16 3 10 15 45 8 6 23 8
200 340 295 266 17 3 10 15 50 10 6 23 12
250 400 355 319 19 3 10 15 55 10 6 28 12
300 455 410 370 20.5 4 10 15 60 10 6 28 12
350 520 470 429 22.5 4 10 15 65 10 6 28 16
400 580 525 480 24 4 13 18 70 10 8 31 16
450 640 585 544 26 4 13 18 75 12 8 31 20
500 715 650 609 27.5 4 13 18 80 12 8 34 20
600 840 770 720 31 5 13 18 90 12 9 37 20
700 910 840 794 34.5 5 16 20 100 12 9 37 24
800 1025 950 901 38 5 16 20 100 12 9 40 24
900 1125 1050 1001 41.5 5 16 20 115 15 9 40 28
1000 1255 1170 1112 45 5 18 22 120 15 10 43 28
1100 1355 1270 1215 48.5 5 18 22 120 15 10 43 32
1200 1485 1390 1328 52 5 18 22 120 15 10 49 32
1400 1685 1590 1530 55 5 20 24 125 15 10 49 36
1600 1930 1820 1750 60 5 20 24 130 15 15 56 40
1800 2130 2020 1950 65 5 20 24 135 18 15 56 44
2000 2345 2230 2150 70 5 22 26 140 18 15 62 48
 
 
 
PN25
DN D K d C c e f N R S Bolt Holes
L No.
80 200 160 132 16 3 7 12 42 6 6 19 8
100 235 190 156 16 3 7 12 42 6 6 23 8
125 270 220 184 16 3 10 15 43 8 6 28 8
150 300 250 211 17 3 10 15 45 8 6 28 8
200 360 310 274 19 3 10 15 50 10 6 28 12
250 425 370 330 21.5 3 10 15 55 10 6 31 12
300 485 430 389 23.5 4 10 15 60 10 6 31 16
350 555 490 448 26 4 10 15 65 10 6 34 16
400 620 550 503 28 4 13 18 70 10 8 37 16
450 670 600 553 30.5 4 13 18 75 12 8 37 20
500 730 660 609 32.5 4 13 18 80 12 8 37 20
600 845 770 720 37 5 13 18 90 12 9 40 20
700 960 875 820 41.5 5 16 20 100 12 9 43 24
800 1085 990 928 46 5 16 20 100 12 9 49 24
900 1185 1090 1028 50.5 5 16 20 115 15 9 49 28
1000 1320 1210 1140 55 5 18 22 120 15 10 56 28
1200 1530 1420 1350 64 5 18 22 120 15 10 56 32
1400 1755 1640 1560 69 5 20 24 125 15 10 62 36
1600 1975 1860 1780 76 5 20 24 130 15 15 62 40
1800 2195 2070 1985 83 5 20 24 135 18 15 70 44
2000 2425 2300 2210 90 5 22 26 140 18 15 70 48