India's Largest Stockist and Supplier Of Nickel Alloys Since 2007

Flanges Dimensions

Flanges Dimensions

 

Flanges Dimensions
Flange Type Standard Number of Bolts Outer Diameter (OD) Nominal Pipe Size (NPS) Bolt Circle Diameter (BCD) Bolt Hole Diameter
Blind DIN 8 9.00” 4” 7.50” 0.75”
Slip On ANSI 4 7.50” 3” 6.00” 0.88”
Weld Neck ANSI 4 6.00” 2” 4.75” 0.75”
Lap Joint JIS 8 13.50” 8” 11.75” 1.00”
Raised Face ANSI 4 7.50” 3” 6.00” 0.88”
Socket Weld ANSI 8 11.00” 6” 9.50” 0.88”
Threaded ANSI 4 4.50” 1” 3.50” 0.50”
Flat Face ANSI 8 9.00” 4” 7.50” 0.75”

 

Table of content
Regent Steel & Engineering Co.

 

Flange Tables
Flange Tables

 

15mm (1/2")
Standard Number of Bolts Diameter Class Bolt Circle Diameter Diameter of Bolt Hole Bolt Size
ISO 7005 (DIN) 4 90 PN20 60.5 16 M14
4 95 PN10 65 14 M12
4 80 PN6 55 11 M10
4 95 PN16 65 14 M12
4 95 PN40 65 14 M12
4 95 PN25 65 14 M12
AS 2129 4 95 Table F 67 14 M12
4 95 Table D 67 14 M12
4 95 Table C 67 14 M12
4 95 Table E 67 14 M12
4 114 Table J 83 17 M16
4 114 Table H 83 17 M16
AS 4087 4 95 PN14 67 14 M12
ANSI B16.5 4 121 ANSI 900 83 22 19
4 95 ANSI 300 67 16 13
4 121 ANSI 1500 83 22 19
4 89 ANSI 150 60 16 13
4 95 ANSI 600 67 16 13

 

20mm (3/4")
Standard Number of Bolts Diameter Class Bolt Circle Diameter Diameter of Bolt Hole Bolt Size
ISO 7005 (DIN) 4 100 PN20 70 16 M14
4 105 PN10 75 14 M12
4 90 PN6 65 11 M10
4 105 PN16 75 14 M12
4 105 PN40 75 14 M12
4 105 PN25 75 14 M12
AS 2129 4 100 Table F 73 14 M12
4 100 Table D 73 14 M12
4 100 Table C 73 14 M12
4 100 Table E 73 14 M12
4 115 Table J 83 18 M12
4 115 Table H 83 18 M12
AS 4087 4 100 PN14 73 14 M12
ANSI B16.5 4 130 ANSI 900 89 22 19
4 117 ANSI 300 83 19 16
4 98 ANSI 150 70 16 13
4 117 ANSI 600 83 19 16
4 130 ANSI 1500 89 22 19

 

25mm (1")
Standard Class Number of Bolts Diameter Bolt Circle Diameter Bolt Size Diameter of Bolt Hole
ISO 7005 (DIN) PN20 4 110 79.5 M14 16
PN10 4 115 85 M12 14
PN6 4 100 78 M10 11
PN16 4 115 85 M12 14
PN40 4 115 85 M12 14
PN25 4 115 85 M12 14
AS 2129 Table F 4 120 87 M16 18
Table D 4 115 83 M12 14
Table C 4 115 83 M12 14
Table E 4 115 83 M12 14
Table J 4 120 87 M16 18
Table H 4 120 87 M16 18
AS 4087 PN14 4 115 83 M12 14
ANSI B16.5 ANSI 900 4   102 22 25
ANSI 300 4 125 89 16 19
ANSI 150 4 110 79 13 16
ANSI 600 4 125 89 16 19
ANSI 1500 4   102 22 25

Find the Perfect Class 150 Flange WN RF Size Chart

Class 150 Flange Dimensions
Class 150 Flange Dimensions

 

Nom. Pipe Size T O TJ X R Bolt Circle Dia #/Dia of Holesa B2b B B3 L H L3c L2 r Thr D
¾ 0.44 3.88 0.50 1.50 1.69 2.75 4-0.62 0.82 1.09 1.11 0.56 1.05 0.62 2.00 0.12 0.62 0.44
½ 0.38 3.50 0.44 1.19 1.38 2.38 4-0.62 0.62 0.88 0.90 0.56 0.84 0.62 1.81 0.12 0.62 0.38
1 0.50 4.25 0.56 1.94 2.00 3.12 4-0.62 1.05 1.36 1.38 0.62 1.32 0.69 2.12 0.12 0.69 0.50
1½ 0.62 5.00 0.69 2.56 2.88 3.88 4-0.62 1.61 1.95 1.97 0.81 1.90 0.88 2.38 0.25 0.88 0.62
1¼ 0.56 4.62 0.62 2.31 2.50 3.50 4-0.62 1.38 1.70 1.72 0.75 1.66 0.81 2.19 0.19 0.81 0.56
2 0.69 6.00 0.75 3.06 3.62 4.75 4-0.75 2.07 2.44 2.46 0.94 2.38 1.00 2.44 0.31 1.00 0.69
3 0.88 7.50 0.94 4.25 5.00 6.00 4-0.75 3.07 3.57 3.60 1.12 3.50 1.19 2.69 0.38 1.19 0.81
2½ 0.81 7.00 0.88 3.56 4.12 5.50 4-0.75 2.47 2.94 2.97 1.06 2.88 1.12 2.69 0.31 1.12 0.75
3½ 0.88 8.50 0.94 4.81 5.50 7.00 8-0.75 3.55 4.07 4.10 1.19 4.00 1.25 2.75 0.38 1.25 0.88
5 0.88 10.00 0.94 6.44 7.31 8.50 8-0.88 5.05 5.66 5.69 1.38 5.56 1.44 3.44 0.44 1.44 0.94
4 0.88 9.00 0.94 5.31 6.19 7.50 8-0.75 4.03 4.57 4.60 1.25 4.50 1.31 2.94 0.44 1.31 0.94
6 0.94 11.00 1.00 7.56 8.50 9.50 8-0.88 6.07 6.72 6.75 1.50 6.63 1.56 3.44 0.50 1.56 1.06
10 1.12 16.00 1.19 12.00 12.75 14.25 12-1.00 10.02 10.88 10.92 1.88 10.75 1.94 3.94 0.50 1.94 1.31
8 1.06 13.50 1.12 9.69 10.62 11.75 8-0.88 7.98 8.72 8.75 1.69 8.63 1.75 3.94 0.50 1.75 1.25
12 1.19 19.00 1.25 14.38 15.00 17.00 12-1.00 12.00 12.88 12.92 2.12 12.75 2.19 4.44 0.50 2.19 1.56
16 1.38 23.50 1.44 18.00 18.50 21.25 16-1.12 15.25 16.16 16.19 2.44 16.00 3.44 4.94 0.50 2.50 1.75
14 1.31 21.00 1.38 15.75 16.25 18.75 12-1.12 13.25 14.14 14.18 2.19 14.00 3.12 4.94 0.50 2.25 1.63
18 1.50 25.00 1.56 19.88 21.00 22.75 16-1.25 17.25 18.18 18.20 2.62 18.00 3.81 5.44 0.50 2.69 1.94
22 1.75 29.50 1.81 24.25 25.25 27.25 20-1.38 21.25 22.22 22.25 3.07 22.00 4.25 5.82 0.50 3.13 2.38
20 1.62 27.50 1.69 22.00 23.00 25.00 20-1.25 19.25 20.20 20.25 2.81 20.00 4.06 5.62 0.50 2.88 2.13
24 1.81 32.00 1.88 26.12 27.25 29.50 20-1.38 23.25 24.25 24.25 3.19 24.00 4.38 5.94 0.50 3.25 2.50

 

Flange Wn Rf Dimensions
Flange Wn Rf Dimensions

 

Class 150
NPS   THK
B		 Dia
D		 Dia
OD		 Dia
A		 Height
H		 Dia
L		 Dia
K
3/4   0.44 3.88 1.05 1.5 2 5/8 2.75
1/2   0.38 3.5 0.84 1.19 1.81 5/8 2.38
1   0.5 4.25 1.32 1.94 2.12 5/8 3.12
1.1/2   0.62 5 1.9 2.56 2.38 5/8 3.88
1.1/4   0.56 4.62 1.66 2.31 2.19 5/8 3.5
2   0.69 6 2.38 3.06 2.44 3/4 4.75
3   0.88 7.5 3.5 4.25 2.69 3/4 6
2.1/2   0.81 7 2.88 3.56 2.69 3/4 5.5
5   0.88 10 5.56 6.44 3.44 7/8 8.5
4   0.88 9 4.5 5.31 2.94 3/4 7.5
3.1/2   0.88 8.5 4 4.81 2.75 3/4 7
6   0.94 11 6.63 7.56 3.44 7/8 9.5
10   1.12 16 10.75 12 3.94 1 14.25
8   1.06 13.5 8.63 9.69 3.94 7/8 11.75
20   1.62 27.5 20 22 5.62 1.1/4 25
12   1.19 19 12.75 14.38 4.44 1 17
16   1.38 23.5 16 18 4.94 1.1/8 21.25
14   1.31 21 14 15.75 4.94 1.1/8 18.75
18   1.5 25 18 19.88 5.44 1.1/4 22.75
24   1.81 32 24 26.12 5.94 1.3/8 29.5

 

Class 300
NPS THK
B		 Dia
D		 Dia
A		 Dia
L		 Height
H		 Dia
OD		 Dia
K
3/4 0.56 4.62 1.88 3/4 2.19 1.05 3.25
1/2 0.5 3.75 1.5 5/8 2 0.84 2.62
1 0.62 4.88 2.12 3/4 2.38 1.32 3.5
1.1/2 0.75 6.12 2.75 7/8 2.63 1.9 4.5
1.1/4 0.69 5.25 2.5 3/4 2.5 1.66 3.88
2 0.81 6.5 3.31 3/4 2.69 2.38 5
3 1.06 8.25 4.62 7/8 3.06 3.5 6.62
2.1/2 0.94 7.5 3.94 7/8 2.94 2.88 5.88
3.1/2 1.12 9 5.25 7/8 3.13 4 7.25
5 1.31 11 7 7/8 3.82 5.56 9.25
4 1.19 10 5.75 7/8 3.32 4.5 7.88
6 1.38 12.5 8.12 7/8 3.82 6.63 10.62
10 1.81 17.5 12.62 1.1/8 4.56 10.75 15.25
8 1.56 15 10.25 1 4.32 8.63 13
12 1.94 20.5 14.75 1.1/4 5.06 12.75 17.75
20 2.44 30.5 23.12 1.3/8 6.32 20 27
16 2.19 25.5 19 1.3/8 5.69 16 22.5
14 2.06 23 16.75 1.1/4 5.56 14 20.25
18 2.31 28 21 1.3/8 6.19 18 24.75
24 2.69 36 27.62 1.5/8 6.56 24 32

Refer Easy to Use Guide For BS 10 Table D Flange Dimensions

BS 10 Table D Flange Dimensions
BS 10 Table D Flange Dimensions

 

Table D: Ideal to Use At Steam Pressure upto 50 Ibs (per square inch)
NPS Dia. of O.D of Dia. of Dia. of No. of Thickness
  Flange Pipe Bolt Circle Bolt Bolt
3/4" 101.6 26.7 73.0 12.7 4 4.8
1/2" 95.3 21.3 66.7 12.7 4 4.8
1" 114.3 33.4 82.6 12.7 4 4.8
1 1/2" 133.4 48.3 98.4 12.7 4 6.4
1 1/4" 120.7 42.2 87.6 12.7 4 6.4
2" 152.4 60.3 114.3 15.9 4 7.9
3" 184.2 88.9 146.1 15.9 4 9.5
2 1/2" 165.1 73.0 127.0 15.9 4 7.9
3 1/2" 203.2 101.6 165.1 15.9 4 9.5
5" 254.0 141.3 209.6 15.9 8 12.7
4" 215.9 114.3 177.8 15.9 4 9.5
6" 279.4 168.3 228.6 15.9 8 12.7
8" 336.6 219.1 292.1 15.9 8 12.7
7" 304.8 190.5 260.4 15.9 8 12.7
9" 368.3 244.5 323.9 15.9 8 15.9
12" 457.2 323.9 406.4 19.1 12 15.9
24" 825.5 609.6 755.7 25.4 16 28.6
10" 406.4 273.0 355.6 19.1 8 15.9
14" 527.1 355.6 469.9 22.2 12 19.1
18" 641.4 457.2 584.2 22.2 12 22.2
16" 577.9 406.4 520.7 22.2 12 19.1
20" 704.9 508.0 641.4 22.5 16 25.4
BS 10 Table E Flange Dimensions
Table E: For Steam Pressure 50 Ibs upto 100 Ibs (per square inch)
Nominal Dia. of Dia. of   No. of Dia. of Thickness
Pipe Size Flange Bolt Circle   Bolt Bolt
1/2" 95.3 66.7   4 12.7 6.4
3/4" 101.6 73.0   4 12.7 6.4
1" 114.3 82.6   4 12.7 7.1
1 1/4" 120.7 87.3   4 12.7 7.9
1 1/2" 133.4 98.4   4 12.7 8.7
2" 152.4 114.3   4 15.9 9.5
2 1/2" 165.1 127.0   4 15.9 10.3
3" 184.2 146.1   4 15.9 11.1
3 1/2" 203.2 165.1   8 15.9 11.9
4" 215.9 177.8   8 15.9 12.7
5" 254.0 209.6   8 15.9 14.3
6" 279.4 228.6   8 19.1 17.5
24" 825.5 755.7   16 25.4 38.1
8" 336.6 292.1   8 19.1 19.1
7" 304.8 260.4   8 19.1 19.1
12" 457.2 406.4   12 22.2 25.4
9" 368.3 323.9   12 19.1 20.6
16" 577.9 520.7   12 22.2 25.4
10" 406.4 355.6   12 19.1 22.2
18" 641.4 584.2   16 22.2 28.6
14" 527.2 469.9   12 22.2 25.4
20" 704.9 647.4   16 22.2 31.8
BS 10 Tabel F Flange Dimensions
Table F: For Steam Pressure above 100 Ibs and upto 150 Ibs (per square inch)
O.D. of Nominal Dia of Thickness No. of Dia of Dia. of
Pipe Pipe Size Flange Bolt Bolt Circle Bolt
26.7 3/4" 101.6 9.5 4 73.0 12.7
21.3 1/2" 95.3 9.5 4 66.7 12.7
33.4 1" 120.7 9.5 4 87.3 15.9
48.3 1 1/2" 139.7 12.7 4 104.8 15.9
42.2 1 1/4" 133.4 12.7 4 98.4 15.9
60.3 2" 165.1 15.9 4 127.0 15.9
88.9 3" 203.2 15.9 8 165.1 15.9
73.0 2 1/2" 184.2 15.9 8 146.1 15.9
101.6 3 1/2" 215.9 19.1 8 177.8 15.9
141.3 5" 279.4 22.2 8 235.0 19.1
114.3 4" 228.6 19.1 8 190.5 15.9
168.3 6" 304.8 22.2 12 260.4 19.1
219.1 8" 368.3 25.4 12 323.9 19.1
609.6 24" 850.9 41.3 24 781.1 31.8
190.3 7" 336.6 22.2 12 292.1 19.1
244.5 9" 406.4 25.4 12 355.6 22.2
323.0 12" 489.0 28.6 16 438.2 22.2
273.0 10" 431.8 25.4 12 381.0 22.2
355.6 14" 552.5 31.8 16 495.3 25.4
457.2 18" 673.1 34.9 20 609.6 28.6
406.4 16" 609.6 31.8 20 552.5 25.4
508.0 20" 736.6 38.1 24 673.1 28.6
BS 10 Table H Flange Dimensions
Table H: For Steam Pressure above 150 Ibs and upto 250 Ibs (per square inch)
Dia of Nominal Dia. of Dia. of No. of Thickness
Flange Pipe size Bolt Circle Bolt Bolt
114.3 3/4" 82.6 15.9 4 12.7
114.3 1/2" 82.6 15.9 4 12.7
120.78 1" 87.3 15.9 4 14.3
139.7 1 1/2" 104.8 15.9 4 17.5
133.4 1 1/4" 98.4 15.9 4 17.5
165.1 2" 127.0 15.9 4 19.1
203.2 3" 165.1 15.9 8 22.2
184.2 2 1/2" 146.1 15.9 8 19.1
215.9 3 1/2" 177.8 15.9 8 22.2
279.4 5" 235.0 19.1 8 28.6
228.6 4" 190.5 15.9 8 25.4
304.8 6" 260.4 19.1 12 28.6
368.3 8" 323.9 19.1 12 31.8
336.6 7" 292.1 19.1 12 31.8
850.9 24" 781.1 31.8 24 57.2
406.4 9" 355.6 22.2 12 34.9
489.0 12" 438.2 22.2 16 38.1
431.8 10" 381.0 22.2 12 34.9
552.5 14" 495.3 25.4 16 41.3
673.1 18" 609.6 28.6 20 47.6
609.6 16" 552.5 25.4 20 44.5
736.6 20" 673.1 28.6 24 50.8

See Reference Table For ASME B16 5 Blind Flange Dimensions

ASME B16 5 Blind Flange Dimensions
ASME B16 5 Blind Flange Dimensions

 

Pressure Class 150
Size
in Inch		 Outer
Dia.		 Size
in mm		 Flange
Thick.		 RF
Height		 RF
Dia.		 PCD Machine Bolt
Length		 Bolt Size
UNC		 No of
Bolts		 Hole Size RF Stud
Length		 Weight
in kg		 ISO Stud
Size
A B D C E
3/4 100 20 11.2 2 42.9 69.9 50 1/2 4 5/8 65 0.9 M14
1/2 90 15 9.6 2 34.9 60.3 50 1/2 4 5/8 55 0.9 M14
1 110 25 12.7 2 50.8 79.4 55 1/2 4 5/8 65 0.9 M14
1 1/2 125 40 15.9 2 73 98.4 65 1/2 4 5/8 70 1.8 M14
1 1/4 115 32 14.3 2 63.5 88.9 55 1/2 4 5/8 70 1.4 M14
2 150 50 17.5 2 92.1 120.7 70 5/8 4 3/4 85 2.3 M16
3 190 80 22.3 2 127 152.4 75 5/8 4 3/4 90 4.1 M16
2 1/2 180 65 20.7 2 104.8 139.7 75 5/8 4 3/4 90 3.2 M16
20 700 500 41.3 2 584.2 635 140 1 1/8 20 1 1/4 160 130 M30
3 1/2 215 90 22.3 2 139.7 177.8 75 5/8 8 3/4 90 5.9 M16
5 255 125 22.3 2 185.7 215.9 85 3/4 8 7/8 95 9.1 M20
4 230 100 22.3 2 157.2 190.5 75 5/8 8 3/4 90 7.7 M16
6 280 150 23.9 2 215.9 241.3 85 3/4 8 7/8 100 11.8 M20
10 405 250 28.6 2 323.8 362 100 7/8 12 1 115 32 M24
8 345 200 27 2 269.9 298.5 90 3/4 8 7/8 110 20.5 M20
12 485 300 30.2 2 381 431.8 100 7/8 12 1 120 50 M24
16 595 400 35 2 469.9 539.8 115 1 16 1 1/8 135 82 M27
14 535 350 33.4 2 412.8 476.3 115 1 12 1 1/8 135 64 M27
18 635 450 38.1 2 533.4 577.9 125 1 1/8 16 1 1/4 145 100 M30
24 815 600 46.1 2 692.2 749.3 150 1 1/4 20 1 3/8 170 196 M33

 

Class 300
Flange
Thick.		 Size
in mm		 Size
in Inch		 Outer
Dia.		 RF
Height		 RF
Dia.		 No of
Bolts		 PCD Machine Bolt
Length		 Bolt Size
UNC		 Hole
Size		 RF Stud
Length		 Weight
in kg		 ISO Stud
Size
B A D C E
14.3 20 3/4 115 2 42.9 4 82.6 65 5/8 3/4 75 1.4 M16
12.7 15 1/2 95 2 34.9 4 66.7 55 1/2 5/8 65 1.4 M14
15.9 25 1 125 2 50.8 4 88.9 65 5/8 3/4 75 1.4 M16
19.1 40 1 1/2 155 2 73 4 114.3 75 3/4 7/8 90 2.7 M20
17.5 32 1 1/4 135 2 63.5 4 98.4 70 5/8 3/4 85 1.8 M16
20.7 50 2 165 2 92.1 8 127 75 5/8 3/4 90 3.7 M16
27 80 3 210 2 127 8 168.3 90 3/4 7/8 110 7.3 M20
23.9 65 2 1/2 190 2 104.8 8 149.2 85 3/4 7/8 100 5.5 M20
28.6 90 3 1/2 230 2 139.7 8 184.2 95 3/4 7/8 110 9.6 M20
62 500 20 775 2 584.2 24 685.8 185 1 1/4 1 3/8 205 230 M33
33.4 125 5 280 2 185.7 8 235 110 3/4 7/8 120 15.9 M20
30.2 100 4 255 2 157.2 8 200 95 3/4 7/8 115 12.3 M20
35 150 6 320 2 215.9 12 269.9 110 3/4 7/8 120 22.7 M20
46.1 250 10 445 2 323.8 16 387.4 140 1 1 1/8 160 57 M27
39.7 200 8 380 2 269.9 12 330.2 120 7/8 1 140 36 M24
49.3 300 12 520 2 381 16 450.8 145 1 1/8 1 1/4 170 84 M30
55.6 400 16 650 2 469.9 20 571.5 165 1 1/4 1 3/8 190 134 M33
52.4 350 14 585 2 412.8 20 514.4 160 1 1/8 1 1/4 180 113 M30
58.8 450 18 710 2 533.4 24 628.6 170 1 1/4 1 3/8 195 181 M33
68.3 600 24 915 2 692.2 24 812.8 205 1 1/2 1 5/8 230 359 M39
Check ANSI Flange Dimensions and Long Weld Neck Flange Bolt Chart
ANSI Flange Dimensions
ANSI Flange Dimensions

 

Nom.         No. & Bolt H L2 B2 B L r B3 L3 C D THr
Pipe
Size 		X T O R Dia. of Circle
Holes Dia.
3/4 1.88 0.62 4.62 1.69 4-0.75 3.25 1.05 2.25 0.82 1.09 1.00 0.12 1.11 1.00 1.14 0.44 0.62
1/2 1.5. 0.56 3.75 1.38 4-0.62 2.62 0.84 2.06 0.62 0.88 0.88 0.12 0.90 0.88 0.93 0.38 0.62
1 2.12 0.69 4.88 2.00 4-0.75 3.50 1.32 2.44 1.05 1.36 1.06 0.12 1.38 1.06 1.41 0.50 0.69
1-1/2 2.75 0.81 6.12 2.88 4-0.88 4.50 1.90 2.69 1.61 1.95 1.19 0.25 1.97 1.19 1.99 0.62 0.88
1-1/4 2.50 0.75 5.25 2.50 4-0.75 3.88 1.66 2.56 1.38 1.70 1.06 0.19 1.72 1.06 1.75 0.56 0.81
2 3.31 0.88 6.50 3.62 8-0.75 5.00 2.38 2.75 2.07 2.44 1.31 0.31 2.46 1.31 2.50 0.69 1.12
3 4.62 1.12 8.25 5.00 8-0.88 6.62 3.50 3.12 3.07 3.57 1.69 0.38 3.60 1.69 3.63 0.81 1.25
2-1/2 3.94 1.00 7.50 4.12 8-0.88 5.88 2.88 3.00 2.47 2.94 1.50 0.31 2.97 1.50 3.00 0.75 1.25
3-1/2 5.25 1.19 9.00 5.50 8-0.88 7.25 4.00 3.19 3.55 4.07 1.75 0.38 4.10 1.75 4.13   1.44
5 7.00 1.38 11.00 7.31 8-0.88 9.25 5.56 3.88 5.05 5.66 2.00 0.44 5.69 2.00 5.69   1.69
4 5.75 1.25 10.00 6.19 8-0.88 7.88 4.50 3.38 4.03 4.57 1.88 0.44 4.60 1.88 4.63   1.44
6 8.12 1.44 12.50 8.50 12-0.88 10.62 6.63 3.88 6.07 6.72 2.06 0.50 6.75 2.06 6.75   1.81
10 12.62 1.88 17.50 12.75 16-1.12 15.25 10.75 4.62 10.02 10.88 2.62 0.50 10.92 3.75 10.88   2.19
8 10.25 1.62 15.00 10.62 12-1.00 13.00 8.63 4.38 7.98 8.72 2.44 0.50 8.75 2.44 8.75   2.00
12 14.75 2.00 20.50 15.00 16-1.25 17.75 12.75 5.12 12.00 12.88 2.88 0.50 12.92 4.00 12.94   2.38
16 19.00 2.25 25.50 18.50 20-1.38 22.50 16.00 5.75 15.25 16.16 3.25 0.50 16.19 4.75 16.19   2.69
14 16.75 2.12 23.00 16.25 20-1.25 20.25 14.00 5.62 13.25 14.14 3.00 0.50 14.18 4.38 14.19   2.50
18 21.00 2.38 28.00 21.00 24-1.38 24.75 18.00 6.25 17.25 18.18 3.50 0.50 18.20 5.12 18.19   2.75
22 25.25 2.63 33.00 25.25 24-1.63 29.25 22.00 6.50 21.25 22.22 4.00 0.50 22.25 5.75 22.19   3.13
20 23.12 2.50 30.50 23.00 24-1.38 27.00 20.00 6.38 19.25 20.20 3.75 0.50 20.25 5.50 20.19   2.88
24 27.62 2.75 36.00 27.25 24-1.62 32.00 24.00 6.62 23.25 24.25 4.19 0.50 24.25 6.00 24.19   3.25
Flange Bolt Dimensions Chart
 
150 LB. Flanges		 300 LB. Flanges 600 LB. Flanges
Nominal Pipe Size Dia of Bolts or Studs Length of Stud # Bolts or Studs Dia of Bolts or Studs Length of Stud # Bolts or Studs Dia of Bolts or Studs Length of Stud # Bolts or Studs
1/2 0.50 2-1/4 4 - 0.50 2-1/2 4 3 0.50 3 4 3
1/16 RF RTJ 1/16 RF RTJ 1/4 RF RTJ
1 0.50 2-1/2 4 3 0.63 3 4 3-1/2 0.63 3-1/2 4 3-1/2
3/4 0.50 2-1/2 4 - 0.63 3 4 3-1/2 0.63 3-1/2 4 3-1/2
1-1/4 0.50 2-3/4 4 3-1/4 0.63 3-1/4 4 3-3/4 0.63 3-3/4 4 3-3/4
2 0.63 3-1/4 4 3-3/4 0.63 3-1/2 8 4 0.63 4-1/4 8 4-1/4
1-1/2 0.50 2-3/4 4 3-1/4 0.75 3-1/2 4 4 0.75 4-1/4 4 4-1/4
2-1/2 0.63 3-1/2 4 4 0.75 4 8 4-1/2 0.75 4-3/4 8 4-3/4
3-1/2 0.63 3-1/2 8 4 0.75 4-1/4 8 5 0.88 5-1/2 8 5-1/2
3 0.63 3-1/2 4 4 0.75 4-1/4 8 4-3/4 0.75 5 8 5
4 0.63 3-1/2 8 4 0.75 4-1/2 8 5 0.88 5-3/4 8 5-3/4
6 0.75 4 8 4-1/2 0.75 4-3/4 12 5-1/2 1.00 6-3/4 12 6-3/4
5 0.75 3-3/4 8 4-1/4 0.75 4-3/4 8 5-1/4 1.00 6-1/2 8 6-1/2
8 0.75 4-1/4 8 4-3/4 0.88 5-1/2 12 6 1.13 7-1/2 12 7-3/4
12 0.88 4-3/4 12 5-1/4 1.13 6-3/4 16 7-1/4 1.25 8-3/4 20 8-3/4
10 0.88 4-1/2 12 5 1.00 6-1/4 16 6-3/4 1.25 8-1/2 16 8-1/2
24 1.25 6-3/4 20 7-1/4 1.50 9 24 10 1.88 13 24 13-1/4
14 1.00 5-1/4 12 5-3/4 1.13 7 20 7-1/2 1.38 9-1/4 20 9-1/4
18 1.13 5-3/4 16 6-1/4 1.25 7-3/4 24 8-1/4 1.63 10-3/4 20 10-3/4
16 1.00 5-1/4 16 5-3/4 1.25 7-1/2 20 8 1.50 10 20 10
20 1.13 6-1/4 20 6-3/4 1.25 8 24 8-3/4 1.63 11-1/4 24 11-1/2
Get Standard PN 16 and PN10 Flange Dimensions In Piping Systems
Pn 16 Flange Dimensions
Pn 16 Flange Dimensions

 

BS EN 1092-1 PN 16 Dimensions ( All Dimensions in mm )
D DN C2 C1 H2 H1 H3 A R N2 N1 B1 f1 d1 S
115 25 16 16 38 24 6 33,7 4 52 46 34,5 2 68 2,6
95 15 14 14 35 20 6 21,3 4 35 32 22 2 45 2,0
90 10 14 14 35 20 6 17,2 4 30 28 18 2 40 1,8
105 20 14 14 38 24 6 26,9 4 45 39 27,5 2 58 2,3
150 40 16 18 42 26 7 48,3 6 70 64 49,5 2 88 2,6
140 32 16 18 40 26 6 42,4 6 60 56 43,5 2 78 2,6
185 65 18 20 45 32 10 76,1 6 104 90 77,5 2 122 2,9
165 50 18 19 45 28 8 60,3 6 84 75 61,5 2 102 2,9
250 125 22 22 55 44 12 139,7 8 168 156 141,5 2 188 4,0
200 80 20 20 50 34 10 88,9 8 118 105 90,5 2 138 3,2
405 250 26 29 70 46 16 273 12 298 292 276,5 2 320 6,3
520 350 30 35 82 57 16 355,6 12 400 390 359 2 438 8,0
285 150 22 24 55 44 12 168,3 10 195 192 170,5 2 212 4,5
220 100 20 22 52 40 12 114,3 8 140 131 116 2 158 3,6
340 200 24 26 62 44 16 219,1 10 246 235 221,5 2 268 5,6
640 450 40 42 87 68 16 457,0 12 502 490 462,0 2 550 8,0
460 300 28 32 78 46 16 323,9 12 350 344 327,5 2 378 7,1
910 700 36 - 100 83 18 711,0 12 760 755 - 2 795 8,8
580 400 32 38 85 63 16 406,4 12 456 445 411,0 2 490 8,0
1125 900 40 - 110 94 20 914,0 12 968 955 - 2 1000 10,0
715 500 44 46 90 73 16 508,0 12 559 548 513,5 2 610 8,0
840 600 54 52 95 83 18 610,0 12 658 652 616,5 2 725 8,8
1930 1600 58 - 160 - 35 1620,0 16 - 1668 - 2 1750 16,0
1025 800 38 - 105 90 20 813,0 12 864 855 - 2 900 10,0
1485 1200 48 - 130 - 30 1219,0 16 - 1262 - 2 1330 12,5
1255 1000 42 - 120 100 22 1016,0 16 1072 1058 - 2 1115 10,0
1685 1400 52 - 145 - 30 1420,0 16 - 1465 - 2 1530 14,2

 

Flange Bolting
No K DN L Size
- mm mm mm mm
4 65 15 14 M12
4 60 10 14 M12
4 75 20 14 M12
4 100 32 18 M16
4 85 25 14 M12
4 110 40 18 M16
8** 145 65 18 M16
4 125 50 18 M16
8 160 80 18 M16
8 210 125 18 M16
8 180 100 18 M16
8 240 150 22 M20
12 355 250 26 M24
12 295 200 22 M20
12 410 300 26 M24
16 525 400 30 M27
16 470 350 26 M24
20 585 450 30 M27
20 770 600 36 M33
20 650 500 33 M30
24 950 800 39 M36
24 840 700 36 M33
40 1820 1600 56 M52
28 1050 900 39 M36
32 1390 1200 48 M45
28 1170 1000 42 M39
36 1590 1400 48 M45
Pn10 Flange Dimensions
Type 11 PN10 DIN EN 1092-1
DN A B C D E F
15 95 65 45 2 21.3 32
10 90 60 40 2 17.2 28
20 105 75 58 2.3 26.9 40
32 140 100 78 2.6 42.4 56
25 115 85 68 2.6 33.7 46
40 150 110 88 2.6 48.3 64
65 185 145 122 2.9 76.1 92
80 200 160 138 3.2 88.9 105
50 165 125 102 2.9 60.3 74
100 220 180 158 3.6 114.3 131
150 285 240 212 4.5 168.3 184
125 250 210 188 4 139.7 156
200 340 295 268 6.3 219.1 234
300 445 400 370 7.1 323.9 342
250 395 350 320 6.3 273 292
350 505 460 430 7.1 355.6 385
450 615 565 532 7.1 457 488
400 565 515 482 7.1 406.4 440
500 670 620 585 7.1 508 542
700 895 840 800 8.8 711 746
600 780 725 685 8 610 642
800 1015 950 905 8.8 813 850
1000 1230 1160 1110 12.5 1016 1052
900 1115 1050 1005 12.5 914 950
1200 1455 1380 1330 12.5 1219 1256
1600 1915 1820 1760 16 1626 1666
1400 1675 1590 1535 14.2 1422 1460
1800 2115 2020 1960 17.5 1829 1868
2200 2550 2440 2370 20 2235 2275
2000 2325 2230 2170 17.5 2032 2072
2400 2760 2650 2570 22.2 2438 2478
2800 3180 3070 3000 25 2820 2882
2600 2960 2850 2780 25 2620 2680
3000 3405 3290 3210 32 3020 3085
Flange Types
Flange Types

 

Flange PCD Chart
SIZE TABLE OD P.C.D THK HOLE PART NUMBER BOLT #
A B C D SOW BLIND SIZE BOLTS
32NB ANSI 150 117 88.9 16 16 RFA - 032 RFAB - 032 1/2 x 2 1/2 4
E 120 87 12 14 RFE - 032 RFEB - 032 M12 x 50 4
D 120 87 12 14 - - M12 X 65 4
DIN PN16 140 100 16 18 RFDI - 032 - M16 X 65 4
25NB ANSI 150 108 79.4 14 16 RFA - 025 RFAB - 025 1/2 x 2 1/4 4
E 115 83 12 14 RFE - 025 RFEB - 025 M12 x 45 4
D 115 83 12 14 - - M12 x 45 4
DIN PN16 115 85 16 14 RFDI - 025 - M12 X 65 4
50NB ANSI 150 152 120.6 20 20 RFA - 050 RFAB - 050 5/8 x 3 1/4 4
E 150 114 12 18 RFE - 050 RFEB - 050 M16 x 60 4
D 150 114 12 18 - - M16 x 60 4
DIN PN16 165 125 18 18 RFDI - 050 RFDIB - 050 M16 X 65 4
40NB ANSI 150 127 98.4 17 16 RFA - 040 RFAB - 040 1/2 x 2 3/4 4
E 135 98 12 14 RFE - 040 RFEB - 040 M12 x 50 4
D 135 98 12 14 M12 x 50 4
DIN PN16 150 110 16 18 RFDI - 040 - M16 X 65 4
80NB D 185 146 12 18 - - M16 x 60 4
DIN PN16 200 160 20 18 RFDI - 080 RFDIB - 080 M16 X 75 8
E 185 146 12 18 RFE - 080 RFEB - 080 M16 x 60 4
ANSI 150 191 152.4 24 20 RFA - 080 RFAB - 080 5/8 x 3 1/2 4
65NB ANSI 150 178 139.7 23 20 RFA - 065 RFAB - 065 5/8 x 3 1/4 4
E 165 127 12 18 RFE - 065 RFEB - 065 M16 x 60 4
D 165 127 12 18 - - M16 x 60 4
DIN PN16 185 145 18 18 RFDI - 065 RFDIB - 065 M16 X 65 4
125NB ANSI 150 254 215.9 24 23 RFA - 125 RFAB - 125 3/4 x 3 3/4 8
E 255 210 14 18 RFE - 125 RFEB - 125 M16 x 65 ∞ 8
D 255 210 13 18 RFD - 125 RFDB - 125 M16 x 65 ∞ 8
DIN PN16 250 210 22 18 RFDI - 125 RFDIB - 125 M16 X 80 8
100NB ANSI 150 229 190.5 24 20 RFA - 100 RFAB - 100 5/8 x 3 3/4 ∞ 8
E 215 178 13 18 RFE - 100 RFEB - 100 M16 x 65 8
D 215 178 12 18 RFD - 100 RFDB - 100 M16 x 65 4
DIN PN16 220 180 20 18 RFDI - 100 RFDIB - 100 M16 X 75 8
200NB ANSI 150 343 298.4 29 23 RFA - 200 RFAB - 200 3/4 x 4 8
E 335 292 19 22 RFE - 200 RFEB - 200 M20 x 65 8
D 335 292 13 18 RFD - 200 RFDB - 200 M16 x 65 8
DIN PN16 240 295 24 22 RFDI - 200 RFDIB - 200 M20 X 90 12
150NB ANSI 150 279 241.3 26 23 RFA - 150 RFAB - 150 3/4 x 3 3/4 8
E 280 235 17 22 RFE - 150 RFEB - 150 M16 X 80 ∞ 8
D 280 235 13 18 RFD - 150 RFDB - 150 M16 x 65 8 ∞
DIN PN16 285 240 22 22 RFDI - 150 RFDIB - 150 M20 X 80 8
250NB E 405 356 22 22 RFE - 250 RFEB - 250 M20 x 75 12
D 405 356 16 22 RFD - 250 RFDB - 250 M20 x 75 8
ANSI 150 406 361.9 30 26 RFA - 250 RFAB - 250 7/8 x 4 1/2 “ 12
Flange Class Chart
PN Flange Specifications
Nominal PN10 PN6 PN25 PN16 PN40
O.D. B.C. DIA. No. B.H. B.H. DIA. O.D. B.C. DIA. No. B.H. B.H. DIA. O.D. B.C. DIA. No. B.H. B.H. DIA. O.D. B.C. DIA. No. B.H. B.H. DIA. O.D. B.C. DIA. No. B.H. B.H. DIA.
DN 32 5.51 3.94 4 0.71 4.72 3.54 4 0.55 5.51 3.94 4 0.71 5.51 3.94 4 0.71 5.51 3.94 4 0.71
DN 25 4.53 3.35 4 0.55 3.94 2.95 4 0.55 4.53 3.35 4 0.55 4.53 3.35 4 0.55 4.53 3.35 4 0.55
DN 40 5.91 4.33 4 0.71 5.12 3.94 4 0.55 5.91 4.33 4 0.71 5.91 4.33 4 0.71 5.91 4.33 4 0.71
DN 65 7.28 5.71 4 0.71 6.30 5.12 4 0.55 7.28 5.71 8 0.71 7.28 5.71 4 0.71 7.28 5.71 8 0.71
DN 50 6.50 4.92 4 0.71 5.51 4.33 4 0.55 6.50 4.92 4 0.71 6.50 4.92 4 0.71 6.50 4.92 4 0.71
DN 80 7.87 6.30 8 0.71 7.48 5.91 4 0.71 7.87 6.30 8 0.71 7.87 6.30 8 0.71 7.87 6.30 8 0.71
DN 125 9.84 9.84 8 0.71 9.45 9.45 8 0.71 10.63 10.63 8 1.02 9.84 9.84 8 0.71 10.63 10.63 8 1.02
DN 100 8.66 7.09 8 0.71 8.27 6.69 4 0.71 9.25 7.48 8 0.87 8.66 7.09 8 0.71 9.25 7.48 8 0.87
DN 150 11.22 9.45 8 0.87 10.43 8.86 8 0.71 11.81 9.84 8 1.02 11.22 9.45 8 0.87 11.81 9.84 8 1.02
DN 200 13.39 11.61 8 0.87 12.60 11.20 8 0.71 14.17 12.20 12 1.02 13.39 11.61 12 0.87 14.76 12.60 12 1.18
DN 175 12.40 10.63 8 0.87 ---- ---- ---- ---- 12.99 11.02 12 1.02 12.40 10.63 8 0.87 13.78 11.61 12 1.18
DN 250 15.55 13.78 12 0.87 14.76 13.19 12 0.71 16.73 14.57 12 1.18 15.94 13.98 12 1.02 17.72 15.16 12 1.30
DN 350 19.88 18.11 16 0.87 19.29 17.52 12 0.87 21.85 19.29 16 1.30 20.47 18.50 16 1.02 22.83 20.08 16 1.42
DN 300 17.52 15.75 12 0.87 17.32 15.55 12 0.87 19.09 16.93 16 1.18 18.11 16.14 12 1.02 20.28 17.72 16 1.30
DN 500 26.38 24.41 20 1.02 25.39 23.62 20 0.87 28.74 25.98 20 1.42 28.15 25.59 20 1.30 29.72 26.38 20 1.65
DN 400 22.24 20.28 16 1.02 21.26 19.49 16 0.87 24.41 21.65 16 1.42 22.83 20.67 16 1.18 25.98 23.03 16 1.54
DN 600 30.71 28.54 20 1.06 29.72 27.76 20 0.94 33.27 30.31 20 1.42 33.07 30.31 20 1.30 ---- ---- ---- ----
Din Flange Dimensions
Nominal Bore DIN Flanges Dia.
(B)		 Dia.
(A)		 Dia.
(D)		 Thick.
(E)		 Dia.
(C)		 Nbr Height
(H)		 Holes
3/4″ 38 28.2 100 12.7 69.9 4 16 15.87
1/2″ 30 22.9 90 11.2 60.3 4 16 15.87
1″ 49 34.9 110 14.3 79.4 4 17 15.87
1 1/4″ 59 43.7 115 15.9 88.9 4 21 15.87
2″ 78 62.5 150 20.7 120.7 4 25 19.05
1 1/2″ 65 50.0 125 17.5 98.4 4 22 15.87
2 1/2″ 90 75.4 180 22.3 139.7 4 29 19.05
3 1/2″ 122 104.1 215 23.9 177.8 8 32 19.05
3″ 108 91.4 190 23.9 152.4 4 30 19.05
4″ 135 116.8 230 23.9 190.5 8 33 19.05
6″ 192 171.4 280 25.4 241.3 8 40 22.22
5″ 164 144.4 255 23.9 215.9 8 36 22.22
8″ 246 222.2 345 28.6 298.5 8 44 22.22
12″ 365 328.2 485 31.8 431.8 12 56 25.40
24″ 663 616.0 815 47.7 749.3 20 111 34.92
10″ 305 277.4 405 30.2 362.0 12 49 25.40
14″ 400 360.2 535 35.0 476.3 12 79 28.57
18″ 505 462.3 635 39.7 577.9 16 97 31.75
16″ 457 411.2 595 36.6 539.8 16 87 28.57
20″ 559 514.4 700 42.9 635.0 20 103 31.75
Flange Drawing
Flange Drawing

 

Flange Diameter Chart

900 LB. Flanges		 1500 LB. Flanges 2500 LB. Flanges
Nominal Pipe Size # Bolts or Studs Length of Stud Dia of Bolts or Studs # Bolts or Studs Length of Stud Dia of Bolts or Studs # Bolts or Studs Length of Stud Dia of Bolts or Studs
1/4 RF RTJ 1/4 RF RTJ 1/4 RF RTJ
1/2 4 4-1/4 0.75 4-1/4 4 4-1/4 0.75 4-1/4 4 4-3/4 0.75 4-3/4
3/4 4 4-1/2 0.75 4-1/2 4 4-1/2 0.75 4-1/2 4 5 0.75 5
1 4 5 0.88 5 4 5 0.88 5 4 5-1/2 0.88 5-1/2
1-1/4 4 5 0.88 5 4 5 0.88 5 4 6 1.00 6
1-1/2 4 5-1/2 1.00 5-1/2 4 5-1/2 1.00 5-1/2 4 6-3/4 1.13 6-3/4
2 8 5-3/4 0.88 5-3/4 8 5-3/4 0.88 5-3/4 8 7 1.00 7
2-1/2 8 6-1/4 1.00 6-1/4 8 6-1/4 1.00 6-1/4 8 7-3/4 1.13 8
3 8 5-3/4 0.88 5-3/4 8 7 1.13 7 8 8-3/4 1.25 9
4 8 6-3/4 1.13 6-3/4 8 7-3/4 1.25 7-3/4 8 10 1.50 10-1/4
5 8 7-1/2 1.25 7-1/2 8 9-3/4 1.50 9-3/4 8 11-3/4 1.75 12-1/4
6 12 7-1/2 1.13 7-3/4 12 10-1/4 1.38 10-1/2 8 13-1/2 2.00 14
8 12 8-3/4 1.38 8-3/4 12 11-1/2 1.63 11-3/4 12 15 2.00 15-1/2
10 16 9-1/4 1.38 9-1/4 12 13-1/4 1.88 13-1/2 12 19-1/4 2.50 20
12 20 10 1.38 10 16 14-3/4 2.00 15-1/4 12 21-1/4 2.75 22
14 20 10-3/4 1.50 11 16 16 2.25 16-3/4 - - - -
16 20 11-1/4 1.63 11-1/2 16 17-1/2 2.50 18-1/2 - - - -
18 20 12-3/4 1.88 13-1/4 16 19-1/2 2.75 20-3/4 - - - -
20 20 13-3/4 2.00 14-1/4 16 21-1/4 3.00 22-1/4 - - - -
24 20 17-1/4 2.50 18 16 24-1/4 3.50 25-1/2 - - - -
300 Class Flange Dimensions
Nominal Pipe Size Thickness (T) Outside Diameter (O) Length Thru Hub (Y) Raised Face Diameter (R) Point of Weld (A) Bore (B) Hub Diameter (X) Approximate Weight (lbs) Number of Holes Bolt Circle (C) Diameter of Holes
3/4 0.63 4.63 2.25 1.69 1.05 0.82 1.88 3 4 3.25 0.75
1/2 0.56 3.75 2.06 1.38 0.84 0.62 1.50 2 4 2.63 0.63
1 0.69 4.88 2.44 2.00 1.32 1.05 2.13 4 4 3.50 0.75
1 1/2 0.81 6.13 2.69 2.88 1.90 1.61 2.75 7 4 4.50 0.88
1 1/4 0.75 5.25 2.56 2.50 1.66 1.38 2.50 5 4 3.88 0.75
2 0.88 6.50 2.75 3.63 2.38 2.07 3.31 9 8 5.00 0.75
2 1/2 1.00 7.50 3.00 4.13 2.88 2.47 3.94 12 8 5.88 0.88
3 1/2 1.19 9.00 3.19 5.50 4.00 3.55 5.25 18 8 7.25 0.88
3 1.13 8.25 3.13 5.00 3.50 3.07 4.63 15 8 6.63 0.88
5 1.38 11.00 3.88 7.31 5.56 5.05 7.00 32 8 9.25 0.88
4 1.25 10.00 3.38 6.19 4.50 4.03 5.75 25 8 7.88 0.88
6 1.44 12.50 3.88 8.50 6.63 6.07 8.13 42 12 10.63 0.88
10 1.88 17.50 4.63 12.75 10.75 10.02 12.63 91 16 15.25 1.13
8 1.63 15.00 4.38 10.63 8.63 7098 10.25 67 12 13.00 1.00
12 2.00 20.50 5.13 15.00 12.75 12.00 14.75 140 16 17.75 1.25
16 2.25 25.50 5.75 18.50 16.00 15.25 19.00 250 20 22.50 1.38
14 2.13 23.00 5.63 16.25 14.00 13.25 16.75 180 20 20.25 1.25
18 2.38 28.00 6.25 21.00 18.00 17.25 21.00 320 24 24.75 1.38
22 2.63 33.00 6.50 25.25 22.00 21.25 25.25 465 24 29.25 1.63
20 2.50 30.50 6.38 23.00 20.00 19.25 23.13 400 24 27.00 1.38
24 2.75 36.00 6.63 27.25 24.00 23.25 27.63 580 24 32.00 1.63
Pipe Flange Size Chart in Mm
Size in mm Size in Inch Flange Thick. Outer Dia. Hub OD RF Dia. Flange Length RF Height Socket Bore PCD Machine Bolt Length No of Bolts Bolt Size UNC Hole Size RF Stud Length Weight in kg ISO Stud Size
B A C E D F H G
20 3/4 14.3 115 48 42.9 24 2 27.7 82.6 65 4 5/8 3/4 75 1.4 M16
15 1/2 12.7 95 38 34.9 21 2 22.2 66.7 55 4 1/2 5/8 65 1.2 M14
25 1 15.9 125 54 50.8 25 2 34.5 88.9 65 4 5/8 3/4 75 1.4 M16
40 1 1/2 19.1 155 70 73 29 2 49.5 114.3 75 4 3/4 7/8 90 2.7 M20
32 1 1/4 17.5 135 64 63.5 25 2 43.2 98.4 70 4 5/8 3/4 85 1.8 M16
50 2 20.7 165 84 92.1 32 2 61.9 127 75 8 5/8 3/4 90 3.2 M16
80 3 27 210 117 127 41 2 90.7 168.3 90 8 3/4 7/8 110 5.9 M20
90 3 1/2 28.6 230 133 139.7 43 2 103.4 184.2 95 8 3/4 7/8 110 7.7 M20
65 2 1/2 23.9 190 100 104.8 37 2 74.6 149.2 85 8 3/4 7/8 100 4.6 M20
100 4 30.2 255 146 157.2 46 2 116.8 200 95 8 3/4 7/8 115 10 M20
150 6 35 320 206 215.9 51 2 171.4 269.9 110 12 3/4 7/8 120 17.7 M20
200 8 39.7 380 260 269.9 60 2 222.2 330.2 120 12 7/8 1 140 26 M24
125 5 33.4 280 178 185.7 49 2 144.4 235 110 8 3/4 7/8 120 12.7 M20
250 10 46.1 445 321 323.8 65 2 277.4 387.4 140 16 1 1 1/8 160 36 M27
350 14 52.4 585 425 412.8 75 2 360.2 514.4 160 20 1 1/8 1 1/4 180 75 M30
300 12 49.3 520 375 381 71 2 328.2 450.8 145 16 1 1/8 1 1/4 170 52 M30
400 16 55.6 650 483 469.9 81 2 411.2 571.5 165 20 1 1/4 1 3/8 190 86 M33
500 20 62 775 587 584.2 94 2 514.4 685.8 185 24 1 1/4 1 3/8 205 143 M33
450 18 58.8 710 533 533.4 87 2 462.3 628.6 170 24 1 1/4 1 3/8 195 113 M33
600 24 68.3 915 702 692.2 105 2 616 812.8 205 24 1 1/2 1 5/8 230 216 M39
Flange Thickness Chart
NOMINAL WALL THICKNESS
Nom Pipe Size OD EXT Hvy Sch 20 Sch 10 Sch 30 Sch 40 STD Wall Sch 60 Sch 100 Sch 80 Sch 140 Sch 120 XX Hvy Sch 160
¾ 1.05 0.154 …….. 0.083 …….. 0.113 0.113 …….. …….. 0.154 …….. …….. 0.308 0.219
½ 0.84 0.147 …….. 0.083 …….. 0.109 0.109 …….. …….. 0.147 …….. …….. 0.294 0.188
1 1.315 0.179 …….. 0.109 …….. 0.133 0.133 …….. …….. 0.179 …….. …….. 0.358 0.25
1 ½ 1.9 0.2 …….. 0.109 …….. 0.145 0.145 …….. …….. 0.2 …….. …….. 0.4 0.281
1 ¼ 1.66 0.191 …….. 0.109 …….. 0.14 0.14 …….. …….. 0.191 …….. …….. 0.382 0.25
2 ½ 2.875 0.276 …….. 0.12 …….. 0.203 0.203 …….. …….. 0.276 …….. …….. 0.552 0.375
2 2.375 0.218 …….. 0.109 …….. 0.154 0.154 …….. …….. 0.218 …….. …….. 0.436 0.344
3 3.5 0.3 …….. 0.12 …….. 0.216 0.216 …….. …….. 0.3 …….. …….. 0.6 0.438
4 4.5 0.337 …….. 0.12 …….. 0.237 0.237 …….. …….. 0.337 …….. 0.438 0.674 0.531
3 ½ 4 0.318 …….. 0.12 …….. 0.226 0.226 …….. …….. 0.318 …….. …….. 0.636 ……..
5 5.563 0.375 …….. 0.134 …….. 0.258 0.258 …….. …….. 0.375 …….. 0.5 0.75 0.625
8 8.625 0.5 0.25 0.148 0.277 0.322 0.322 0.406 0.594 0.5 0.812 0.719 0.875 0.906
6 6.625 0.432 …….. 0.134 …….. 0.28 0.28 …….. …….. 0.432 …….. 0.562 0.864 0.719
10 10.75 0.5 0.25 0.165 0.307 0.365 0.365 0.5 0.719 0.594 1 0.844 1 1.125
14 14 0.5 0.312 0.25 0.375 0.438 0.375 0.594 0.938 0.75 1.25 1.094 …….. 1.406
12 12.75 0.5 0.25 0.18 0.33 0.406 0.375 0.562 0.844 0.688 1.125 1 1 1.312
16 16 0.5 0.312 0.25 0.375 0.5 0.375 0.656 1.031 0.844 1.438 1.219 …….. 1.594
20 20 0.5 0.375 0.25 0.5 0.594 0.375 0.812 1.281 1.031 1.75 1.5 …….. 1.969
18 18 0.5 0.312 0.25 0.438 0.562 0.375 0.75 1.156 0.938 1.562 1.375 …….. 1.781
22 22 0.5 …….. 0.25 …….. …….. 0.375 …….. …….. …….. …….. …….. …….. ……..
48 48 0.5 …….. …….. …….. …….. 0.375 …….. …….. …….. …….. …….. …….. ……..
26 26 0.5 …….. …….. …….. …….. 0.375 …….. …….. …….. …….. …….. …….. ……..
24 24 0.5 0.375 0.25 0.562 0.688 0.375 0.969 1.531 1.219 2.062 1.812 …….. 2.344
30 30 0.5 0.5 0.312 0.625 …….. 0.375 …….. …….. …….. …….. …….. …….. ……..
40 40 0.5 …….. …….. …….. …….. 0.375 …….. …….. …….. …….. …….. …….. ……..
36 36 0.5 0.5 0.312 0.625 0.75 0.375 …….. …….. …….. …….. …….. …….. ……..
42 42 0.5 …….. …….. …….. …….. 0.375 …….. …….. …….. …….. …….. …….. ……..
Flange Pressure Rating Chart
Non-Shock Pressure (Psig) Maximum Allowable
Temperature (°F) Pressure Class (lb)
(Psig) Hydrostatic Test Pressure
-20 to 100 285 740 990 1480 2220 3705 6170
200 260 675 900 1350 2025 3375 5625
400 200 635 845 1270 1900 3170 5280
300 230 655 875 1315 1970 3280 5470
500 170 600 800 1200 1795 2995 4990
600 140 550 730 1095 1640 2735 4560
800 80 410 550 825 1235 2060 3430
700 110 535 710 1065 1600 2665 4440
650 125 535 715 1075 1610 2685 4475
750 95 505 670 1010 1510 2520 4200
900 50 170 230 345 515 860 1430
850 65 270 355 535 805 1340 2230
1000 20 50 70 105 155 260 430
950 35 105 140 205 310 515 860
               
Flange Weight Chart
NPS Weight In Kilogram Dimensions In MM
Normal Pipe Size
(Inch.)		 DN (Millimeter) SORF
SW		 WNRF BLRF FLANGES
O.D.
MM
MM		 FLANGE
Thickness.

D

MM
3/4 20 0.6 0.7 0.6 98.6 12.7
1/2 15 0.4 0.5 0.4 88.9 11.2
1 25 0.8 1 0.9 108 14.2
1 1/2 40 1.3 1.7 1.5 127 17.5
1 1/4 32 1 1.3 1.2 117.3 15.7
2 50 2.1 2.6 2.4 152.4 19.1
3 80 3.9 4.9 4.9 190.5 23.9
2 1/2 65 3.3 4.1 3.9 177.8 22.4
20 500 61.9 84.5 122.0 698.5 42.9
3 1/2 90 4.8 6.1 6.2 215.9 23.9
5 125 6.1 8.6 8.6 254 23.9
4 100 5.3 6.8 7.0 228.6 23.9
6 150 7.5 10.6 11.3 279.4 25.4
10 250 16.5 24 28.6 406.4 30.2
8 200 12.1 17.6 19.6 342.9 28.4
12 300 26.2 36.5 43.2 482.6 31.8
16 400 44.8 60.6 76.1 596.9 36.6
14 350 34.6 48.4 58.1 533.4 35.1
18 450 48.9 68.3 93.7 635 39.6
24 600 86.9 115 185.0 812.8 47.8

 


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