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Triton Alloys

ASTM A182 Spectacle Flange

A spectacle flange is a safety device used to isolate a section of line or piece of equipment when the line or equipment needs to be inspected or removed from service. It is different than a valve in that the blind is a permanent or long term isolation device. Spectacle Flange are generally applied to permanently separating pipesystems, or just to connect with each other.

A Spectacle Flange is a steel plate cut into two discs of a certain thickness. We have established ourselves as a renowned stockist and supplier of a superior quality range of Spectacle Flanges. Our flanges are manufactured at the vendors' end following set industry standards. These flanges can be availed by the customers in different dimensions & sizes as per their demands. The offered flanges are widely used to close the end of pipes, valves and pressure vessel openings. Moreover, customers can avail these flanges from us at competitive prices.

Specification - ASTM A182 Spectacle Flange

Size: 1/2"NB TO 24"NB IN
Standard: 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS DIN Standard ND-6,10, 16, 25, 40 Etc.
Materials: Monel :
Grade: Monel 400, Monel K500, Monel R-405
Nickel :
Grade: Nickel 200, Nickel 201
Inconel :
Grade: Inconel 600, Inconel 601, Inconel 625, Inconel 718
Incoloy :
Grade: Incoloy 800, Incoloy 800H, Incoloy 800HT
Hastelloy :
Grade: Hastelloy B2, Hastelloy B3, Hastelloy C22, Hastelloy C276, Hastelloy X
Titanium :
Grade: Gr1, Gr2, Gr3, Gr5, Gr7, Gr11
Stainless Steel :
Grade: ASME / ASTM SA / A403 SA / A 774 WP-S, WP-W, WP-WX, 304, 304L, 316, 316L, 304/304L, 304H, 316H, 316/316L, 321, 330, 347, 309/S, 310/S, 317/L, 333, 410/S, DIN 1.4301, DIN1.4306, DIN 1.4401, DIN 1.4404
Carbon Steel :
Grade: ASTM A 234 WPB , WPBW, WPHY 42, WPHY 46, WPHY 52, WPH 60, WPHY 65 & WPHY 70
Duplex Steel:
Grade: ASTM / ASME A/SA 182 UNS F44, F45, F51, F53, F55, F60, F61
Alloy Steel:
Grade : ASTM SA 182 - E25, E26, E27, E28, E29B, E30B, E39B, E40B, E36B, E36C, E41B, AISI4130, AISI4140, AISI4340, 42CRMO4, 16MNCR5, 20MNCR5, 21CrMoV57, EN353, EN354, F11, F22, F91, F9, P11, P22, P91, P9, P5, P92, EN42J, EN8, EN19
Value Added Service: CNC Machine, Customized Flanges

Dimensions Spectacle Blind Flange

Pressure Class 150

NPS Outside Ø
A
Inside Ø
B
Center Line
C
THK
t
Web Width
W
1/2 45 16 60 3 38
3/4 54 21 70 3 38
1 64 27 80 3 38
73 42 90 6.4 38
83 48 100 6.4 38
2 102 61 120 6.4 51
107 73 140 6.4 51
3 133 89 150 6.4 64
159 102 175 9.7 64
4 172 114 190 9.7 64
5 194 141 215 9.7 76
6 219 168 240 12.7 76
8 276 219 300 12.7 76
10 337 273 360 15.7 102
12 406 324 430 19.1 102
14 448 356 475 19.1 108
16 511 406 460 22.4 108
18 546 457 580 25.4 114
20 603 508 635 28.4 121
24 714 610 750 31.8 140

Pressure Class 300

NPS Outside Ø
A
Inside Ø
B
Center Line
C
THK
t
Web Width
W
1/2 51 16 65 6.4 38
3/4 64 21 80 6.4 38
1 70 27 90 6.4 38
79 42 100 6.4 38
92 48 115 6.4 38
2 108 61 125 9.7 51
127 73 150 9.7 51
3 146 89 170 9.7 64
162 102 185 12.7 64
4 178 114 200 12.7 64
5 213 141 235 15.7 76
6 248 168 270 15.7 76
8 305 219 330 22.4 76
10 359 273 385 25.4 102
12 419 324 450 28.4 102
14 483 356 515 31.8 108
16 536 406 570 38.1 108
18 594 457 630 41.1 114
20 651 508 685 44.5 121
24 772 610 810 50.8 140

Pressure Class 600

NPS Outside Ø
A
Inside Ø
B
Center Line
C
THK
t
Web Width
W
1/2 51 16 65 6.4 38
3/4 64 21 80 6.4 38
1 70 27 90 6.4 57
79 37 100 9.7 57
92 43 115 9.7 67
2 108 55 125 9.7 57
127 67 150 12.7 67
3 146 83 170 12.7 67
159 96 185 15.7 76
4 191 108 215 15.7 76
5 238 135 265 19.1 86
6 264 162 290 22.4 86
8 318 212 350 28.4 95
10 397 265 430 35.1 105
12 454 315 490 41.1 105
14 489 346 525 44.5 114
16 562 397 605 50.8 124
18 610 448 655 53.8 133
20 679 497 725 63.5 133
24 787 597 840 73.2 152
NPS Outside Ø
A
Inside Ø
B
Center Line
C
THK
t
Web Width
W

Pressure Class 900

NPS Outside Ø
A
Inside Ø
B
Center Line
C
THK
t
Web Width
W
1/2 60 16 80 6.4 38
3/4 67 21 90 6.4 41
1 76 27 100 6.4 57
86 37 110 9.7 57
95 43 125 9.7 67
2 140 55 165 12.7 57
162 67 190 12.7 67
3 165 83 190 15.7 67
4 203 108 235 19.1 76
5 244 135 280 22.4 86
6 286 162 320 25.4 86
8 356 212 395 35.1 95
10 432 265 470 41.1 105
12 495 315 535 47.8 105
14 518 346 560 53.8 114
16 572 397 615 60.5 124
18 635 448 685 66.5 133
20 696 497 750 73.2 133
24 835 597 900 88.9 152
NPS Outside Ø
A
Inside Ø
B
Center Line
C
THK
t
Web Width
W

Pressure Class 1500

NPS Outside Ø
A
Inside Ø
B
Center Line
C
THK
t
Web Width
W
1/2 61 16 80 6.4 38
3/4 67 21 90 9.7 41
1 76 27 100 9.7 64
86 35 110 9.7 64
95 41 125 12.7 70
2 140 53 165 12.7 70
162 63 190 15.7 76
3 172 78 205 19.1 76
4 206 102 240 22.4 89
5 251 128 290 28.4 89
6 279 154 320 35.1 89
8 349 203 395 41.1 102
10 432 255 480 50.8 114
12 518 303 570 60.5 114
14 575 333 635 66.5 127
16 638 381 705 76.2 133
18 702 429 775 85.9 146
20 752 478 830 95.3 152
24 899 575 990 111.3 178
NPS Outside Ø
A
Inside Ø
B
Center Line
C
THK
t
Web Width
W

Pressure Class 1500

NPS Outside Ø
A
Inside Ø
B
Center Line
C
THK
t
Web Width
W
1/2 61 16 80 6.4 38
3/4 67 21 90 9.7 41
1 76 27 100 9.7 64
86 35 110 9.7 64
95 41 125 12.7 70
2 140 53 165 12.7 70
162 63 190 15.7 76
3 172 78 205 19.1 76
4 206 102 240 22.4 89
5 251 128 290 28.4 89
6 279 154 320 35.1 89
8 349 203 395 41.1 102
10 432 255 480 50.8 114
12 518 303 570 60.5 114
14 575 333 635 66.5 127
16 638 381 705 76.2 133
18 702 429 775 85.9 146
20 752 478 830 95.3 152
24 899 575 990 111.3 178
NPS Outside Ø
A
Inside Ø
B
Center Line
C
THK
t
Web Width
W

Pressure Class 2500

NPS Outside Ø
A
Inside Ø
B
Center Line
C
THK
t
Web Width
W
1/2 67 16 90 9.7 38
3/4 73 21 95 9.7 41
1 83 27 110 9.7 64
102 35 130 12.7 64
114 41 145 15.7 70
2 143 53 170 15.7 70
165 63 195 19.1 76
3 194 78 230 22.4 76
4 232 102 275 28.4 89
5 276 128 325 35.1 89
6 314 154 370 41.1 89
8 384 198 440 53.8 102
10 473 248 540 66.5 114
12 546 289 620 79.2 114
NPS Outside Ø
A
Inside Ø
B
Center Line
C
THK
t
Web Width
W

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