Flange Tables

Flange Tables

Nominal Size 15mm (1/2 in)
BS EN 1092 Diameter of flange Bolt circle diameter Number of bolts Diameter of bolts Diameter of holes Diameter of rasied face  Height of raised face Thickness of flange
PN 6 80 55 4 M10 11 40 2 12
PN 10 95 65 4 M12 14 45 2 16
PN 16 95 65 4 M12 14 45 2 16
PN 25 95 65 4 M12 14 45 2 16
PN 40 95 65 4 M12 14 45 2 16
ANSI                
Class 125/150 31/2 (89) 23/8 (60) 4 1/2 (13) 5/8 (16) 13/8 (35) 1/16 (2) 7/16 (11)
Class 300 33/4 (95) 25/8 (67) 4 1/2 (13) 5/8 (16) 13/8 (35) 1/16 (2) 1/2 (13)
BS 10                
Table D 33/4 (95) 25/8 (67) 4 1/2 (13) 9/16 (14) - - 3/8 (10)
Table E 33/4 (95) 25/8 (67) 4 1/2 (13) 9/16 (14) - - 3/8 (10)
Nominal Size 20mm (3/4in)
BS EN 1092 Diameter of flange Bolt circle diameter Number of bolts Diameter of bolts Diameter of holes Diameter of rasied face  Height of raised face Thickness of flange
PN 6 90 65 4 M10 11 50 2 14
PN 10 105 75 4 M12 14 58 2 18
PN 16 105 75 4 M12 14 58 2 18
PN 25 105 75 4 M12 14 58 2 18
PN 40 105 75 4 M12 14 58 2 18
ANSI                
Class 125/150 37/8 (98) 23/4 (70) 4 1/2 (13) 5/8 (16) 111/16 (43) 1/16 (2) 9/16 (14)
Class 300 45/8 (117) 31/4 (83) 4 5/8 (16) 3/4 (19) 111/16 (43) 1/16 (2) 5/8 (16)
BS 10                
Table D 4 (102) 27/8 (73) 4 1/2 (13) 9/16 (14) - - 3/8 (10)
Table E 4 (102) 27/8 (73) 4 1/2 (13) 9/16 (14) - - 3/8 (10)
Nominal Size 25mm (1in)
BS EN 1092 Diameter of flange Bolt circle diameter Number of bolts Diameter of bolts Diameter of holes Diameter of rasied face  Height of raised face Thickness of flange
PN 6 100 75 4 M10 11 60 2 14
PN 10 115 85 4 M12 14 68 2 18
PN 16 115 85 4 M12 14 68 2 18
PN 25 115 85 4 M12 14 68 2 18
PN 40 115 85 4 M12 14 68 2 18
ANSI                
Class 125/150 41/4 (114) 31/8 (79) 4 1/2 (13) 5/8 (16) 2 (51) 1/16 (2) 7/16 (11)
Class 300 47/8 (124) Class 300           47/8 (124)  31/2 (89)      4 4 5/8 (16) 3/4 (19) 2 (51) 1/16 (2) 11/16 (17)
BS 10                
Table D 41/2 (114) 31/4 (83) 4 1/2 (13) 9/16 (14) - - 3/8 (10)
Table E 41/2 (114) 31/4 (83) 4 1/2 (13) 9/16 (14) - - 3/8 (10)
Nominal Size 32mm (11/4in)
BS EN 1092 Diameter of flange Bolt circle diameter Number of bolts Diameter of bolts Diameter of holes Diameter of rasied face  Height of raised face Thickness of flange
PN 6 120 90 4 M12 14 70 2 14
PN 10 140 100 4 M16 18 78 2 18
PN 16 140 100 4 M16 18 78 2 18
PN 25 140 100 4 M16 18 78 2 18
PN 40 140 100 4 M16 18 78 2 18
ANSI                
Class 125/150 45/8 (117) 31/2 (89) 45/8 (117) 31/2 (89) 4 1/2 (13) 21/2 (64) 5/8 (16) 1/16 (2) 1/2 (13)
Class 300 51/4 (133) 37/8 (98) 4 5/8 (16) 21/2 (64) 3/4 (19) 1/16 (2) 3/4 (19)
BS 10              
Table D 43/4 (121) 37/16 (87) 4 1/2 (13) 9/16 (14)     5/8 (16)
Table E 43/4 (121) 37/16 (87) 4 1/2 (13) 9/16 (14)     5/8 (16)
Nominal Size 40mm (11/2in)
BS EN 1092 Diameter of flange Bolt circle diameter Number of bolts Diameter of bolts Diameter of holes Diameter of rasied face  Height of raised face Thickness of flange
PN 6 130 100 4 M12 14 80 2 14
PN 10 150 110 4 M16 18 88 2 18
PN 16 150 110 4 M16 18 88 2 18
PN 25 150 110 4 M16 18 88 2 18
PN 40 150 110 4 M16 18 88 2 18
ANSI                
Class 125/150 5 (127) 37/8 (98) 4 1/2 (13) 5/8 (16) 27/8 (73) 1/16 (2) 9/16 (14)
Class 300 61/8 (156) 41/2 (114) 4 3/4 (19) 7/8 (22) 27/8 (73) 1/16 (2) 13/16 (21)
BS 10                
Table D 51/4 (133) 37/8 (98) 4 1/2 (13) 9/16 (14)     1/2 (13)
Table E 51/4 (133) 37/8 (98) 4 1/2 (13) 9/16 (14)     1/2 (13)
Nominal Size 50mm (2in)
BS EN 1092 Diameter of flange Bolt circle diameter Number of bolts Diameter of bolts Diameter of holes Diameter of rasied face  Height of raised face Thickness of flange
PN 6 140 110 4 M12 14 90 2 14
PN 10 165 125 4 M16 18 102 2 18
PN 16 165 125 4 M16 18 102 2 18
PN 25 165 125 4 M16 18 102 2 20
PN 40 165 125 4 M16 18 102 2 20
ANSI                
Class 125/150 6 (152) 43/4 (121) 4 5/8 (16) 3/4 (19) 35/8 (92) 1/16 (2) 5/8 (16)
Class 300 61/2 (165) 5 (127) 8 5/8 (16) 3/4 (19) 35/8 (92) 1/16 (2) 7/8 (22)
BS 10                
Table D 6 (152) 41/2 (114) 4 5/8 (16) 11/16 (17) - - 9/16 (14)
Table E 6 (152) 41/2 (114) 4 5/8 (16) 11/16 (17) - - 9/16 (14)
Nominal Size 65mm (21/2in)
BS EN 1092 Diameter of flange Bolt circle diameter Number of bolts Diameter of bolts Diameter of holes Diameter of rasied face  Height of raised face Thickness of flange
PN 6 160 130 4 M12 14 110 3 14
PN 10 185 145 4 M16 18 122 3 18
PN 16 185 145 4 M16 18 122 3 18
PN 25 185 145 8 M16 18 122 3 22
PN 40 185 145 8 M16 18 122 3 22
ANSI                
Class 125/150 7 (178) 51/2 (140) 4 5/8 (16) 3/4 (19) 41/8 (105) 1/16 (2) 11/16 (17)
Class 300 71/2 (191) 57/8 (149) 8 3/4 (19) 7/8 (22) 41/8 (105) 1/16 (2) 1 (25)
BS 10                
Table D 61/2 (165) 5 (127) 4 5/8 (16) 11/16 (17)     9/16 (14)
Table E 61/2 (165) 5 (127) 4 5/8 (16) 11/16 (17)     9/16 (14)
Nominal Size 80mm (3in)
BS EN 1092 Diameter of flange Bolt circle diameter Number of bolts Diameter of bolts Diameter of holes Diameter of rasied face  Height of raised face Thickness of flange
PN 6 190 150 4 M16 18 128 2 16
PN 10 200 160 8 M16 18 138 2 20
PN 16 200 160 8 M16 18 138 2 20
PN 25 200 160 8 M16 18 138 2 24
PN 40 200 160 8 M16 18 138 2 24
ANSI                
Class 125/150 71/2 (191) 6 (152) 4 5/8 (16) 3/4 (19) 5 (127) 1/16 (2) 3/4 (19)
Class 300 81/4 (210) 65/8 (168) 8 3/4 (19) 7/8 (22) 5 (127) 1/16 (2) 11/8 (29)
BS 10                
Table D 71/4 (184) 53/4 (146) 4 5/8 (16) 11/16 (17)     9/16 (14)
Table E 71/4 (184) 53/4 (146) 4 5/8 (16) 11/16 (17)     9/16 (14)
Nominal Size 100mm (4in)
BS EN 1092 Diameter of flange Bolt circle diameter Number of bolts Diameter of bolts Diameter of holes Diameter of rasied face  Height of raised face Thickness of flange
PN 6 210 170 4 M16 18 148 2 16
PN 10 220 180 8 M16 18 158 2 20
PN16 220 180 8 M16 18 158 2 20
PN 25 235 190 8 M20 22 162 2 24
PN 40 235 190 8 M20 22 162 2 24
ANSI                
Class 125/150 9 (229) 71/2 (191) 8 5/8 (16) 3/4 (19) 63/16 (157) 1/16 (2) 15/16 (24)
Class 300 10 (254) 77/8 (200) 8 3/4 (19) 7/8 (22) 63/16 (157) 1/16 (2) 11/4 (32)
BS 10                
Table D 81/2 (216) 7 (178) 4 5/8 (16) 11/16 (17)     11/16 (17)
Table E 81/2 (216) 7 (178) 8 5/8 (16) 11/16 (17)     11/16 (17)
Nominal Size 125mm (5in)
BS EN 1092 Diameter of flange Bolt circle diameter Number of bolts Diameter of bolts Diameter of holes Diameter of rasied face  Height of raised face Thickness of flange
PN 6 240 200 8 M16 18 178 2 18
PN 10 250 210 8 M16 18 188 2 22
PN 16 250 210 8 M16 18 188 2 22
PN 25 270 220 8 M24 26 188 2 26
PN 40 270 220 8 M24 26 188 2 26
ANSI                
Class 125/150 10 (254) 81/2 (216) 8 3/4 (19) 7/8 (22) 75/16 (186) 1/16 (2) 15/16 (24)
Class 300 11 (279) 91/4 (235) 8 3/4 (19) 7/8(22) 75/16 (186) 1/16 (2) 13/8 (35)
BS 10                
Table D 10 (254) 81/4 (210) 8 5/8 (16) 11/16 (17)     11/16 (17)
Table E 10 (254) 81/4 (210) 8 5/8 (16) 11/16 (17)     11/16 (17)
Nominal Size 150mm (6in)
BS EN 1092 Diameter of flange Bolt circle diameter Number of bolts Diameter of bolts Diameter of holes Diameter of rasied face  Height of raised face Thickness of flange
PN 6 265 225 8 M16 18 202 2 18
PN 10 285 240 8 M20 22 212 2 22
PN 16 285 240 8 M20 22 212 2 22
PN 25 300 250 8 M24 26 218 2 28
PN 40 300 250 8 M24 26 218 2 28
ANSI                
Class 125/150 11 (279) 91/2 (241) 8 3/4 (19) 7/8 (22) 81/2 (216) 1/16 (2) 1 (25)
Class 300 121/2 (318) 105/8 (270) 12 3/4 (19) 7/8 (22) 81/2 (216) 1/16 (2) 17/16 (37)
BS 10                
Table D 11 (279) 91/4 (235) 8 5/8 (16) 11/16 (17)     11/16 (17)
Table E 11 (279) 91/4 (235) 8 3/4 (19) 7/8 (22)     11/16 (17)
Nominal Size 200 mm (8 in)
BS EN 1092 Diameter of flange Bolt circle diameter Number of bolts Diameter of bolts Diameter of holes Diameter of rasied face  Height of raised face Thickness of flange
PN 6 320 280 8 M16 18 258 2 20
PN 10 340 295 8 M20 22 268 2 24
PN 16 340 295 12 M20 22 268 2 24
PN 25 360 310 12 M24 26 278 2 30
PN 40 375 320 12 M27 30 285 2 34
ANSI                
Class 125/150 131/2 (343) 113/4 (298) 8 3/4 (19) 7/8 (22) 105/8 (270) 1/16 (2) 11/8(29)
Class 300 15 (381) 13 (330) 12 7/8 (22) 1 (25) 105/8 (270) 1/16 (2) 15/8 (41)
BS 10                
Table D 131/4 (337) 111/2 (292) 8 5/8 (16) 11/16 (17)     3/4 (19)
Table E 131/4 (337) 111/2 (292) 8 3/4 (19) 7/8 (22)     3/4 (19)
Nominal Size 250 mm (10 in)
BS EN 1092 Diameter of flange Bolt circle diameter Number of bolts Diameter of bolts Diameter of holes Diameter of rasied face  Height of raised face Thickness of flange
PN 6 375 335 12 M16 18 312 2 22
PN 10 395 350 12 M20 22 320 2 26
PN 16 405 355 12 M24 26 320 2 26
PN 25 425 370 12 M27 30 335 2 32
PN 40 450 385 12 M30 33 345 2 38
ANSI                
Class 125/150 16 (406) 141/4 (362) 12 7/8 (22) 1 (25) 123/4 (324) 1/16 (2) 13/16 (30)
Class 300 171/2 (445) 151/4 (387) 16 1 (25)       - 11/8 (29) 123/4 (324) 1/16 (2) 17/8 (41)
BS 10                
Table D   14 (356) 8 3/4 (19) 7/8 (22)     3/4 (19)
Table E   14 (356) 12 3/4 (19) 7/8 (22)     7/8 (22)
Nominal Size 300 mm (12 in)
BS EN 1092 Diameter of flange Bolt circle diameter Number of bolts Diameter of bolts Diameter of holes Diameter of rasied face  Height of raised face Thickness of flange
PN 6   395 12 M20 22 365 2 22
PN 10   400 12 M20 22 370 2 26
PN 16   410 12 M24 26 378 2 28
PN 25   430 16 M27 30 395 2 34
PN 40   450 16 M30 33 410 2 42
ANSI                
Class 125/150 19 (483) 17 (432) 12 7/8 (22) 1 (25) 15 (381) 1/16 (2) 11/4 (32)
Class 300 201/2 (521) 173/4 (451) 16 11/8 (29) 11/4 (32) 15 (381) 1/16 (2) 2 (51)
BS 10                
Table D 18 (457) 16 (406) 12 3/4 (19) 7/8 (22)     7/8 (22)
Table E 18 (457) 16 (406) 12 7/8 (22) 1 (25)     1 (25)
Nominal Size 350 mm (14 in)
BS EN 1092 Diameter of flange Bolt circle diameter Number of bolts Diameter of bolts Diameter of holes Diameter of rasied face  Height of raised face Thickness of flange
PN 6 490 445 12 M20 22 415 2 22
PN 10 505 460 16 M20 22 430 2 26
PN 16 520 470 16 M24 26 438 2 30
PN 25 555 490 16 M30 33 450 2 38
PN 40 580 510 16 M33 36 465 2 46
ANSI                
Class 125/150 21 (533) 183/4 (476) 12 1 (25) 11/8 (29) 16 1/4 (413) 1/16 (2) 13/8 (35)
Class 300 23 (584) 201/4 (514) 20 11/8 (29) 11/4 (32) 16 1/4 (413) 1/16 (2) 21/8 (54)
BS 10                
Table D 203/4 (527) 181/2 (470) 12 7/8 (22) 1 (25) - - 1 (25)
Table E 203/4 (527) 181/2 (470) 12 7/8 (22) 1 (25) - - 1 (25)
Nominal Size 400 mm (16in)
BS EN 1092 Diameter of flange Bolt circle diameter Number of bolts Diameter of bolts Diameter of holes Diameter of rasied face  Height of raised face Thickness of flange
PN 6 540 495 16 M20 22 465 2 22
PN 10 565 515 16 M24 26 482 2 26
PN 16 580 525 16 M27 30 490 2 32
PN25 620 550 16 M33 36 505 2 40
PN 40 660 585 16 M36 39 535 2 50
ANSI                
Class 125/150 231/2 (597) 211/4 (540) 16 1 (25) 11/8 (29) 181/2 (470) 1/16 (2) 17/16 (37)
Class 300 251/2 (648) 221/2 (572) 20 11/4 (32) 13/8 (35)      - 181/2 (470) 1/16 (2) 21/4 (57)
BS 10                
Table D 223/4 (578) 201/2 (521) 12 7/8 (22) 1 (25) - - 1 (25)
Table E 223/4 (578) 201/2 (521) 12 7/8 (22) 1 (25) - - 1 (25)
Nominal Size 450 mm (18 in)
BS EN 1092 Diameter of flange Bolt circle diameter Number of bolts Diameter of bolts Diameter of holes Diameter of rasied face  Height of raised face Thickness of flange
PN 6 595 550 16 M20 22 520 2 22
PN 10 615 565 20 M24 26 532 2 28
PN 16 640 585 20 M27 30 550 2 40
PN 25 670 600 20 M33 36 555 2 46
PN 40 685 610 20 M36 39 560 2 57
ANSI                
Class 125/150 25 (635) 223/4 (578) 16 11/8 (29) 11/4 (32) 21 (533) 1/16 (2) 19/16 (40)
Class 300 28 (711) 243/4 (629) 24 11/4 (32) 13/8 (35) 21 (533) 1/16 (2) 23/8 (60)
BS 10                
Table D 251/4 (641) 23 (584) 12 7/8 (22) 1 (25)     11/8 (29)
Table E 251/4 (641) 23 (584) 16 7/8 (22) 1 (25)     11/8 (29)
Nominal Size 500 mm (20 in)
BS EN 1092 Diameter of flange Bolt circle diameter Number of bolts Diameter of bolts Diameter of holes Diameter of rasied face  Height of raised face Thickness of flange
PN 6 645 600 20 M20 22 570 2 24
PN 10 670 620 20 M24 26 585 2 48
PN 16 715 650 20 M30 33 610 2 44
PN 25 730 660 20 M33 36 615 2 48
PN 40 755 670 20 M39 42 615 2 57
ANSI
Class 125/150 271/2 (699) 25 (635) 20 11/8 (29) 11/4 (32) 23 (584) 1/16 (2) 111/16 (43)
Class 300 301/2 (775) 27 (686) 24 11/4 (32) 13/8 (35) 23 (584) 1/16 (2) 21/2 (64)
BS 10
Table D 273/4 (705) 251/4 (641) 16 7/8 (22) 1 (25) 11/4 (32)
Table E 273/4 (705) 251/4 (641) 16 7/8 (22) 1 (25) 11/4 (32)
Nominal Size 600 mm (24 in)
   
BS EN 1092 Diameter of flange Bolt circle diameter Number of bolts Diameter of bolts Diameter of holes Diameter of rasied face  Height of raised face Thickness of flange
PN 6 755 705 20 M24 26 670 2 30
PN 10 780 725 20 M27 30 685 2 34
PN 16 840 770 20 M33 36 725 2 54
PN 25 845 770 20 M36 39 720 2 58
PN 40 890 890 20 M45 48 735 2 72
ANSI                
Class 125/150 32 (813) 291/2 (749) 20 11/4 (32) 13/8 (35) 271/4 (692) 1/16 (2) 17/8 (48)
Class 300 36 (914) 32 (813) 24 11/2 (38) 15/8 (41) 271/4 (692) 1/16 (2) 23/4 (70)
BS 10                
Table D 321/2 (826) 293/4 (756) 16 1 (25) 11/8 (29)     13/8 (35)
Table E 321/2 (826) 293/4 (756) 16 11/8 (29) 11/4 (32)     11/2 (38)