Spectacle Blind Flanges manufactured by Pipe Fitting Suppliers is one of the most advanced piping solutions that are used more often in many industries such as oil, gas, petroleum, residential, commercials, chemical and other liquids. These spectacle flanges come in various stainless steel material Spectacle Blind Flanges, Stainless Steel Spectacle Blind Flanges, SS Spectacle Blind Flanges and Alloy Steel Spectacle Blind Flanges. There are more specification by which these products are described with their size, standards and other. The available size is as follows from (15 NB) to 48", their standards are available as ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, and ANSI B16.48. They are classified with 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS ASA 150#, 2.0MPa, 5.0MPa, 10.0MPa, 15.0MPa, 25.0MPa, 42.0MPa. The DIN are mentioned as DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636, DIN2637, DIN2638, DIN2673. These all classifications are very important and are essential when you order customized requirement. Dealing with national and international clients it’s important for you know that these are highly valued in the market. B.S types are as BS4504, BS4504, BS1560 and BS10. The grades mentioned for Stainless Steel Spectacle Blind Flanges are as ASTM A182, A240 F 304, 304L, 304H, 316, 316Ti, 316H, 316L, 316LN, 309S, 309H, 310S, 310H, 317, 317L, 321, 321H, 347, 347H, 201, 202, 904L. For Carbon Steel Spectacle Blind Flanges ASTM / ASME A/SA 105 ASTM / ASME A 350, ASTM A 181 LF 2 / A516 Gr.70 A36, A694 F42, F46, F52, F60, F65, F70. Alloy Steel Spectacle Blind Flanges ASTM / are SME A/SA 182 A 387 F1, F5, F9, F11, F12, F22, F9. Nickel Alloy Spectacle Blind Flange is as ASTM SB564, SB160, SB472, SB162 Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20 (UNS No. N08020). Copper Alloy Spectacle Blind Flanges are as ASTM SB 61, SB62, SB151, and SB152 UNS No. C 10100, 10200, 10300, 10800, 12000, 12200, 70600, 71500, UNS No. C 70600 (Cu -Ni- 90/10), C 71500 (Cu -Ni- 70/30). Duplex Steel Spectacle Blind Flanges are as ASTM A182, A240 UNS S31803, UNS S32205, UNS S32750, and UNS S32950.
Countries like UAE, Saudi Arabia, Kuwait, Qatar, Egypt, Turkey, Oman, Africa, Malaysia & many countries in USA & Europe are the main marketer for exporting of the products and their services. We today are honored as No. 1 exporter in Indian and International market. We are legally certified with an ISO 9001, 14001, OHSAS 18001 with PED 97/23/EC approved supplier & exporter of Industrial raw materials. Pipe Elbow, Pipe Tee, Pipe Cross, Lap Joints, Butt-Weld Pipes and many more are also available with other types of carbon, nickel, alloy and stainless steel Spectacle Blind Flanges available
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All of our high quality products are tested on different parameter for excellent product value in the market. Our business connections are very beneficial to more than 600 reputed organizations in more than 30+ countries from last 25 years with 95% of customer retention.
Weld Neck Flanges A / B Specification
| Product type | Weld Neck Flanges Series A/B |
|---|---|
| Size | ½” (15 NB) to 48″ (1200NB) |
| Carbon Steel Weld Neck Flanges Series A/B | ASTM / ASME A 105, ASTM / ASME A 350 LF 2 |
| Stainless Steel Weld Neck Flanges Series A/B | ASTM / ASME SA 182 F 304, 304L, 304H, 309H, 310H, 316, 316H, 316L, 316 LN, 317, 317L, 321, 321H, 347, 347 H. |
| Alloy Steel Weld Neck Flanges Series A/B | ASTM / ASME A 182 GR F 5, F 9, F 11, F 12, F 22, F 91 |
| Duplex Steel Weld Neck Flanges Series A/B | ASTM / ASME SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61. |
| Copper Alloy Weld Neck Flanges Series A/B | ASTM / ASME SB 61 UNS NO. C 92200 & ASTM / ASME SB 62 UNS NO. C 83600. ASTM / ASME SB 151 UNS NO. 70600, 71500, C 70600 ( CU -NI- 90/10), C 71500 ( CU -NI- 70/30), ASTM / ASME SB 152 UNS NO C 10100, C 10200, C 10300, C 10800, C 12000, C 12200. |
| High Nickel Alloy Weld Neck Flanges Series A/B | ASTM / ASME SB 564 UNS 2200 (NICKEL 200), UNS 4400 (MONEL 400), UNS 8825 INCONEL (825), UNS 6600 (INCONEL 600), UNS 6601 (INCONEL 601), UNS 6625 (INCONEL 625), UNS 10276 (HASTELLOY C 276), ASTM / ASME SB 160 UNS 2201 (NICKEL 201 ), ASTM / ASME SB 472 UNS 8020 (ALLOY 20 / 20 CB 3) |
ANSI B16.5 Weld Neck Flanges A / B Dimensions & Weight Chart:
Welding neck flange bores according ASME/ANSI B16.5-1996 Pipe Flanges and Flanged Fittings
|
Welding Neck Flange Bores
|
|||||||
|---|---|---|---|---|---|---|---|
|
Nominal Pipe Size(inches) |
Outside Diameter(inches) |
Inside Diameter (inches)
|
|||||
|
Light Wall 1)
|
Schedule 20
|
Schedule 30
|
Standard Wall
|
Schedule 40
|
Schedule 60
|
||
|
1/2
|
0.840
|
0.674
|
-
|
-
|
0.622
|
0.622
|
-
|
|
3/4
|
1.050
|
0.884
|
-
|
-
|
0.824
|
0.824
|
-
|
|
1
|
1.315
|
1.097
|
-
|
-
|
1.049
|
1.049
|
-
|
|
1 1/4
|
1.660
|
1.442
|
-
|
-
|
1.380
|
1.380
|
-
|
|
1 1/2
|
1.900
|
1.682
|
-
|
-
|
1.610
|
1.610
|
-
|
|
2
|
2.375
|
2.157
|
-
|
-
|
2.067
|
2.067
|
-
|
|
2 1/2
|
2.875
|
2.635
|
-
|
-
|
2.469
|
2.469
|
-
|
|
3
|
3.500
|
3.260
|
-
|
-
|
3.068
|
3.068
|
-
|
|
3 1/2
|
4.000
|
3.760
|
-
|
-
|
3.548
|
3.548
|
-
|
|
4
|
4.500
|
4.260
|
-
|
-
|
4.026
|
4.026
|
-
|
|
5
|
5.563
|
5.295
|
-
|
-
|
5.047
|
5.047
|
-
|
|
6
|
6.625
|
6.357
|
-
|
-
|
6.065
|
6.065
|
-
|
|
8
|
8.625
|
8.329
|
8.125
|
8.071
|
7.981
|
7.981
|
7.813
|
|
10
|
10.750
|
10.420
|
10.250
|
10.136
|
10.020
|
10.020
|
9.750
|
|
12
|
12.750
|
12.390
|
12.250
|
12.090
|
12.000
|
11.938
|
11.626
|
|
14
|
14.000
|
13.500
|
13.376
|
13.250
|
13.250
|
13.124
|
12.812
|
|
16
|
16.000
|
15.500
|
15.376
|
15.250
|
15.250
|
15.000
|
14.688
|
|
18
|
18.000
|
17.500
|
17.376
|
17.124
|
17.250
|
16.876
|
16.500
|
|
20
|
20.000
|
19.500
|
19.250
|
19.000
|
19.250
|
18.812
|
18.376
|
|
24
|
24.000
|
23.500
|
23.250
|
22.876
|
23.250
|
22.624
|
22.062
|
|
30
|
30.000
|
29.376
|
29.000
|
28.750
|
29.250
|
-
|
-
|
|
36
|
36.000
|
35.376
|
35.000
|
34.750
|
35.250
|
34.500
|
-
|
|
42
|
42.000
|
-
|
-
|
-
|
41.250
|
-
|
-
|
|
48
|
48.000
|
-
|
-
|
-
|
47.250
|
-
|
-
|
| Welding Neck Flange Bores | ||||||||
|---|---|---|---|---|---|---|---|---|
|
Nominal Pipe Size(inches) |
Outside Diameter(inches) |
Inside Diameter (inches)
|
||||||
|
Extra Strong
|
Schedule 80
|
Schedule 100
|
Schedule 120
|
Schedule 140
|
Schedule 160
|
Double Extra Strong
|
||
|
1/2
|
0.840
|
0.546
|
0.546
|
-
|
-
|
-
|
0.464
|
0.252
|
|
3/4
|
1.050
|
0.742
|
0.742
|
-
|
-
|
-
|
0.612
|
0.434
|
|
1
|
1.315
|
0.957
|
0.957
|
-
|
-
|
-
|
0.815
|
0.599
|
|
1 1/4
|
1.660
|
1.278
|
1.278
|
-
|
-
|
-
|
1.160
|
0.896
|
|
1 1/2
|
1.900
|
1.500
|
1.500
|
-
|
-
|
-
|
1.338
|
1.100
|
|
2
|
2.375
|
1.939
|
1.939
|
-
|
-
|
-
|
1.687
|
1.503
|
|
2 1/2
|
2.875
|
2.323
|
2.323
|
-
|
-
|
-
|
2.125
|
1.771
|
|
3
|
3.500
|
2.900
|
2.900
|
-
|
-
|
-
|
2.624
|
2.300
|
|
3 1/2
|
4.000
|
3.364
|
3.364
|
-
|
-
|
-
|
-
|
2.728
|
|
4
|
4.500
|
3.826
|
3.826
|
-
|
3.624
|
-
|
3.438
|
3.152
|
|
5
|
5.563
|
4.813
|
4.813
|
-
|
4.563
|
-
|
4.313
|
4.063
|
|
6
|
6.625
|
5.761
|
5.761
|
-
|
5.501
|
-
|
5.187
|
4.897
|
|
8
|
8.625
|
7.625
|
7.625
|
7.437
|
7.187
|
7.001
|
6.813
|
6.875
|
|
10
|
10.750
|
9.750
|
9.562
|
9.312
|
9.062
|
8.750
|
8.500
|
8.750
|
|
12
|
12.750
|
11.750
|
11.374
|
11.062
|
10.750
|
10.500
|
10.126
|
10.750
|
|
14
|
14.000
|
13.000
|
12.500
|
12.124
|
11.814
|
11.500
|
11.188
|
-
|
|
16
|
16.000
|
15.000
|
14.312
|
13.938
|
13.564
|
13.124
|
12.812
|
-
|
|
18
|
18.000
|
17.000
|
16.124
|
15.688
|
15.250
|
14.876
|
14.438
|
-
|
|
20
|
20.000
|
19.000
|
17.938
|
17.438
|
17.000
|
16.500
|
16.062
|
-
|
|
24
|
24.000
|
23.000
|
21.562
|
20.938
|
20.376
|
19.876
|
19.312
|
-
|
|
30
|
30.000
|
29.000
|
-
|
-
|
-
|
-
|
-
|
-
|
|
36
|
36.000
|
35.000
|
-
|
-
|
-
|
-
|
-
|
-
|
|
42
|
42.000
|
41.000
|
-
|
-
|
-
|
-
|
-
|
-
|
|
48
|
48.000
|
47.000
|
-
|
-
|
-
|
-
|
-
|
-
|
ANSI/ASME steel flanges
|
|
EN/PED Steel Flanges
|
|
BS Steel Flanges
|
|
JIS Steel Flanges
|
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Flange Standard
|
|