ANSI B16.5 Flange Dimensions, Weigh Chart In Mm

Flange Dimension Chart Weight & Size Chart

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Metalica Forging Inc is one of the most experienced manufacturers, dealers, distributors, Stockists, and suppliers of Blind Flanges, Reducing Threaded Flanges, Lap Joint Flanges, Flange Gaskets, Threaded Flanges, Socketweld Flanges, Flange Bolts, Ring Flange, Spectacle Blind Flanges, Weld Neck Flanges, Orifice Flange, Slip-On-Flanges, and High Hub Blinds.

NPS 26 through NPS 60 are included in the ASME/ANSI B16.47 Large Diameter Steel Flanges. For flanges of this size with rating class designations of 75, 150, 300, 400, 600, and 900, this standard covers pressure ratings, temperature ratings, materials, dimensions, tolerances, marking, and testing. We can make a wide range of huge diameter sizes and forms, using a wide range of building materials to suit any application. ONGC, Indian Oil, NTPC, BHEL, ONGC, HPCL, BPCL, and other leading government sector enterprises have approved us as a Flanges provider.  Get in touch with us for your specific requirement.

15mm (1/2″) Flanges

Standard Class Diameter Bolt Circle Diameter Number of Bolts Bolt Size Diameter of Bolt Hole
AS4087 Flanges PN14 Flanges 95 67 4 M12 14
AS 2129 Flange

 

 

 

 

 

Table C Flanges 95 67 4 13 14
Table D Flanges 95 67 4 13 14
Table E Flanges 95 67 4 13 14
Table F Flanges 95 67 4 13 14
Table H Flanges 114 83 4 16 17
Table J Flanges 114 83 4 16 17
ANSI B16.5 Flanges

 

 

 

 

ANSI 150 Flanges 89 60 4 13 16
ANSI 300 Flanges 95 67 4 13 16
ANSI 600 Flanges 95 67 4 13 16
ANSI 900 Flanges 121 83 4 19 22
ANSI 1500 Flanges 121 83 4 19 22
ISO 7005 (DIN) Flange

 

 

 

 

 

PN6 Flanges 80 55 4 M10 11
PN10 Flanges 95 65 4 M12 14
PN16 Flanges 95 65 4 M12 14
PN20 Flanges 90 60.5 4 M14 16
PN25 Flanges 95 65 4 M12 14
PN40 Flanges 95 65 4 M12 14

20mm (3/4″) Flanges

Standard Class Diameter Bolt Circle Diameter Number of Bolts Bolt Size Diameter of Bolt Hole
AS4087 Flanges PN14 Flanges 100 73 4 M12 14
AS 2129 Flange

 

 

 

 

 

Table C Flange 100 73 4 13 14
Table D Flange 100 73 4 13 14
Table E Flange 100 73 4 13 14
Table F Flange 100 73 4 13 14
Table H Flange 115 83 4 16 18
Table J Flange 115 83 4 16 18
ANSI B16.5 Flanges

 

 

 

 

ANSI 150 Flange 98 70 4 13 16
ANSI 300 Flange 117 83 4 16 19
ANSI 600 Flange 117 83 4 16 19
ANSI 900 Flange 130 89 4 19 22
ANSI 1500 Flange 130 89 4 19 22
ISO 7005 (DIN) Flange

 

 

 

 

 

PN6 Flange 90 65 4 M10 11
PN10 Flange 105 75 4 M12 14
PN16 Flange 105 75 4 M12 14
PN20 Flange 100 70 4 M14 16
PN25 Flange 105 75 4 M12 14
PN40 Flange 105 75 4 M12 14

25mm (1″) Flanges

Standard Class Diameter Bolt Circle Diameter Number of Bolts Bolt Size Diameter of Bolt Hole
AS4087 Flanges PN14 Flanges 115 83 4 M12 14
AS 2129 Flange

 

 

 

 

 

Table C Flanges 115 83 4 13 14
Table D Flanges 115 83 4 13 14
Table E Flanges 115 83 4 13 14
Table F Flanges 120 87 4 16 18
Table H Flanges 120 87 4 16 18
Table J Flanges 120 87 4 16 18
ANSI B16.5 Flanges

 

 

 

 

ANSI 150 Flanges 110 79 4 13 16
ANSI 300 Flanges 125 89 4 16 19
ANSI 600 Flanges 125 89 4 16 19
ANSI 900 Flanges 102 4 22 25
ANSI 1500 Flanges 102 4 22 25
ISO 7005 (DIN) Flange

 

 

 

 

 

PN6 Flanges 100 78 4 M10 11
PN10 Flanges 115 85 4 M12 14
PN16 Flanges 115 85 4 M12 14
PN20 Flanges 110 79.5 4 M14 16
PN25 Flanges 115 85 4 M12 14
PN40 Flanges 115 85 4 M12 14

32mm (1 1/4″) Flanges

Standard Class Diameter Bolt Circle Diameter Number of Bolts Bolt Size Diameter of Bolt Hole
AS4087 Flanges PN14 Flanges 120 87 4 M12 14
AS 2129 Flange

 

 

 

 

 

Table C Flange 120 87 4 13 14
Table D Flange 120 87 4 13 14
Table E Flange 120 87 4 13 14
Table F Flange 135 98 4 16 18
Table H Flange 135 98 4 16 18
Table J Flange 135 98 4 16 18
ANSI B16.5 Flanges

 

 

 

 

ANSI 150 Flange 117 89 4 13 16
ANSI 300 Flange 133 98 4 16 19
ANSI 600 Flange 133 98 4 16 19
ANSI 900 Flange 159 111 4 22 25
ANSI 1500 Flange 159 111 4 22 25
ISO 7005 (DIN) Flange

 

 

 

 

 

PN6 Flange 120 90 4 M12 14
PN10 Flange 140 100 4 M16 18
PN16 Flange 140 100 4 M16 18
PN20 Flange 120 89 4 M14 16
PN25 Flange 140 100 4 M16 18
PN40 Flange 140 100 4 M16 18

40mm (1 1/2″) Flanges

Standard Class Diameter Bolt Circle Diameter Number of Bolts Bolt Size Diameter of Bolt Hole
AS4087 Flanges PN14 Flanges 135 98 4 M12 14
AS 2129 Flange

 

 

 

 

 

Table C Flanges 135 98 4 13 14
Table D Flanges 135 98 4 13 14
Table E Flanges 135 98 4 13 14
Table F Flanges 140 105 4 16 18
Table H Flanges 140 105 4 16 18
Table J Flanges 140 105 4 16 18
ANSI B16.5 Flanges

 

 

 

 

ANSI 150 Flanges 127 98 4 13 16
ANSI 300 Flanges 156 114 4 19 22
ANSI 600 Flanges 156 114 4 19 22
ANSI 900 Flanges 178 124 4 25 29
ANSI 1500 Flanges 178 124 4 25 29
ISO 7005 (DIN) Flange

 

 

 

 

 

PN6 Flanges 130 100 4 M12 14
PN10 Flanges 150 110 4 M16 18
PN16 Flanges 150 110 4 M16 18
PN20 Flanges 130 98.5 4 M14 16
PN25 Flanges 150 110 4 M16 18
PN40 Flanges 150 110 4 M16 18

50mm (2″) Flanges

Standard Class Diameter Bolt Circle Diameter Number of Bolts Bolt Size Diameter of Bolt Hole
AS 4087 Flange PN14 Flange 150 114 4 M16 18
PN16 Flange 150 114 4 M16 18
PN21 Flange 165 127 4 M16 18
PN35 Flange 165 127 4 M16 18
AS 2129 Flange Table C Flange 150 114 4 16 18
Table D Flange 150 114 4 16 18
Table E Flange 150 114 4 16 18
Table F Flange 165 127 4 16 18
Table H Flange 165 127 4 16 18
Table J Flange 165 127 4 19 22
ANSI B16.5 Flange ANSI 150 Flange 152 121 4 16 19
ANSI 300 165 127 8 16 19
ANSI 600 165 127 8 16 19
ANSI 900 216 165 8 22 25
ANSI 1500 216 165 8 22 25
ISO 7005 (DIN) Flange PN6 Flange 140 110 4 M12 14
PN10 Flange 165 125 4 M16 18
PN16 Flange 165 125 4 M16 18
PN20 Flange 150* 120.5 4 M16 18
PN25 Flange 165 125 4 M16 18
PN40 Flange 165 125 4 M16 18

65mm (2 1/2″) Flanges

Standard Class Diameter Bolt Circle Diameter Number of Bolts Bolt Size Diameter of Bolt Hole
AS 4087 Flanges PN14 Flanges 165 127 4 M16 18
PN16 Flanges 165 127 4 M16 18
PN21 Flanges 185 146 8 M16 18
PN35 Flanges 185 146 8 M16 18
AS 2129 Flanges Table C Flanges 165 127 4 16 18
Table D Flanges 165 127 4 16 18
Table E Flanges 165 127 4 16 18
Table F Flanges 185 146 8 16 18
Table H Flanges 185 146 8 16 18
Table J Flanges 185 146 8 19 22
ANSI B16.5 Flanges ANSI 150 Flanges 178 140 4 16 19
ANSI 300 Flanges 191 149 8 19 22
ANSI 600 Flanges 191 149 8 19 22
ANSI 900 Flanges 244 191 8 22 25
ANSI 1500 Flanges 244 191 8 25 29
ISO 7005 (DIN) Flanges PN6 Flanges 160 130 4 M12 14
PN10 Flanges 185 145 4 M16 18
PN16 Flanges 185 145 4 M16 18
PN20 Flanges 180 139.5 4 M16 18
PN25 Flanges 185 145 8 M16 18
PN40 Flanges 185 145 8 M16 18

80mm (3″) Flanges

Standard Class Diameter Bolt Circle Diameter Number of Bolts Bolt Size Diameter of Bolt Hole
AS 4087 Flange PN14 Flange 185 146 4 M16 18
PN16 Flange 185 146 4 M16 18
PN21 Flange 205 165 8 M16 18
PN35 Flange 205 165 8 M16 18
AS 2129 Flange Table C Flange 185 146 4 16 18
Table D Flange 185 146 4 16 18
Table E Flange 165 146 4 16 18
Table F Flange 205 165 8 16 18
Table H Flange 205 165 8 16 18
Table J Flange 205 165 8 19 22
ANSI B16.5 Flange ANSI 150 Flange 191 152 4 16 19
ANSI 300 Flange 210 168 8 19 22
ANSI 600 Flange 210 168 8 19 22
ANSI 900 Flange 241 192 8 22 25
ANSI 1500 Flange 267 203 8 29 32
ISO 7005 (DIN) Flange PN6 Flange 190 150 4 M16 18
PN10 Flange 200 160 8 M16 18
PN16 Flange 200 160 8 M16 18
PN20 Flange 190 152.5 4 M16 18
PN25 Flange 200 160 8 M16 18
PN40 Flange 185 160 8 M16 18

100mm (4″) Flanges

Standard Class Diameter Bolt Circle Diameter Number of Bolts Bolt Size Diameter of Bolt Hole
AS 4087 Flanges PN14 Flanges 215 178 4 M16 18
PN16 Flanges 215 178 4 M16 18
PN21 Flanges 230 191 8 M16 18
PN35 Flanges 230 191 8 M16 18
AS 2129 Flanges Table C Flanges 215 178 4 16 18
Table D Flanges 215 178 4 16 18
Table E Flanges 215 178 8 16 18
Table F Flanges 230 191 8 16 18
Table H Flanges 230 191 8 16 18
Table J Flanges 230 191 8 19 22
ANSI B16.5 Flanges ANSI 150 Flanges 229 191 8 16 19
ANSI 300 Flanges 254 200 8 19 22
ANSI 600 Flanges 273 216 8 22 25
ANSI 900 Flanges 292 235 8 29 32
ANSI 1500 Flanges 311 241 8 32 35
ISO 7005 (DIN) Flanges PN6 Flanges 210 170 4 M16 18
PN10 Flanges 220 180 8 M16 24
PN16 Flanges 220 180 8 M16 18
PN20 Flanges 230 190.5 8 M16 18
PN25 Flanges 235 190 8 M20 22
PN40 Flanges 235 190 8 M20 22

125mm (5″) Flanges

Standard Class Diameter Bolt Circle Diameter Number of Bolts Bolt Size Diameter of Bolt Hole
AS 4087 Flanges PN14 Flanges 280 235 8 M16 18
PN16 Flanges
PN21 Flanges
PN35 Flanges
AS 2129 Flanges Table C Flanges 255 210 8 16 18
Table D Flanges 255 210 8 16 18
Table E Flanges 255 210 8 16 18
Table F Flanges 280 235 8 19 22
Table H Flanges 280 235 8 19 22
Table J Flanges 280 235 8 22 26
ANSI B16.5 Flanges ANSI 150 Flanges 254 216 8 19 22
ANSI 300 Flanges 279 235 8 19 22
ANSI 600 Flanges 330 267 8 25 29
ANSI 900 Flanges 349 279 8 32 35
ANSI 1500 Flanges 375 292 8 38 41
ISO 7005 (DIN) Flanges PN6 Flanges 240 200 8 M16 18
PN10 Flanges 250 210 8 M16 18
PN16 Flanges 250 210 8 M16 18
PN20 Flanges 255 216 8 M20 22
PN25 Flanges 270 220 8 M24 26
PN40 Flanges 270 220 8 M24 26

150mm (6″) Flanges

Standard Class Diameter Bolt Circle Diameter Number of Bolts Bolt Size Diameter of Bolt Hole
AS 4087 PN14 Flanges 280 235 8 M16 18
PN16 Flanges 280 235 8 M16 18
PN21 Flanges 305 260 12 M20 22
PN35 Flanges 305 260 12 M20 22
AS 2129 Flanges Table C Flanges 280 235 8 16 18
Table D Flanges 280 235 8 16 18
Table E Flanges 280 235 8 19 22
Table F Flanges 305 260 12 19 22
Table H Flanges 305 260 12 19 22
Table J Flanges 305 260 12 22 26
ANSI B16.5 Flanges ANSI 150 Flanges 279 241 8 19 22
ANSI 300 Flanges 318 270 12 19 22
ANSI 600 Flanges 356 292 12 25 29
ANSI 900 Flanges 381 318 12 29 32
ANSI 1500 Flanges 394 318 12 35 38
ISO 7005 (DIN) PN6 Flanges 265 225 8 M16 18
PN10 Flanges 285 240 8 M20 22
PN16 Flanges 285 240 8 M20 22
PN20 Flanges 280 241.5 8 M20 22
PN25 Flanges 300 250 8 M24 26
PN40 Flanges 300 250 8 M24 26

200mm (8″)

Standard Class Diameter Bolt Circle Diameter Number of Bolts Bolt Size Diameter of Bolt Hole
AS 4087 PN14 Flange 335 292 8 M16 18
PN16 Flange 335 292 8 M16 18
PN21 Flange 370 324 12 M20 22
PN35 Flange 370 324 12 M20 22
AS 2129 Flanges Table C Flange 335 292 8 16 18
Table D Flange 335 292 8 16 18
Table E Flange 335 292 8 19 22
Table F Flange 370 324 12 19 22
Table H Flange 370 324 12 19 22
Table J Flange 370 324 12 22 26
ANSI B16.5 Flanges ANSI 150 Flange 343 298 8 19 22
ANSI 300 Flange 381 330 12 19 22
ANSI 600 Flange 419 349 12 29 32
ANSI 900 Flange 470 394 12 35 38
ANSI 1500 Flange 483 394 12 41 44
ISO 7005 (DIN) PN6 Flange 320 280 8 M16 18
PN10 Flange 340 295 8 M20 22
PN16 Flange 340 295 12 M20 22
PN20 Flange 345 298.5 8 M20 22
PN25 Flange 360 310 12 M24 26
PN40 Flange 375 320 12 M27 30

Flange Standard

ANSI Flange DIN Flange EN Flange
ASME Flange JIS/KS Flange GB Flange
GOST Flange BS Flange UNI / Api Flange
Blind Flanges Reducing Threaded Flanges Lap Joint Flanges
Flange Gaskets Threaded Flanges Socketweld Flanges
Flanges Bolts Ring Flange Spectacle Blind Flanges
Weld Neck Flanges Orifice Flange Slip-On-Flanges
High Hub Blinds Flanges

Flanges Applications and Uses:

  • Flanges used in Homes and buildings
  • Flanges used in Transporting materials
  • Flanges used in the Automotive industry
  • Flanges used in Sewerage systems, industrial water lines, and water mains.
  • Flanges used in heating, ventilating, and air-conditioning equipment.
  • Flanges used in Plumbing
  • Flanges used in Food Processing Industry
  • Flanges used in Paper & Pulp Industry