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Blind Flanges
We are widely known for offering premium quality steel
blind flanges. Designed and developed in compliance with international
quality standards, these stainless steel blind flanges are made to suit the
variegated requirements of diverse industries. Our product stainless steel
blind flanges are shock proof and ensures high utility with low maintenance.
Customization of these steel blind flanges are done as per the diverse
demand & specifications of the clients all across the world.
Stainless Steel : ASTM A 182, A 240
Grade : F304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H,
317, 347, 347H,904L, Duplex stainless steel UNS S31803, 2205, Super Duplex
stainless steel UNS S32750
Carbon Steel : ASTM A 105, ASTM A 181
Alloy Steel : ASTM A 182, GR F1, F11, F22, F5, F9, F91
Nickel Alloys : Monel 400 & 500, Inconel 600 & 625, Incolloy
800, 825, Hastelloy C22,C276
ANSI B 150 Class
| Pipe |
Flange
Dimension |
RF |
Drilling
Dimension |
| Size |
|
A |
C |
G |
H |
I |
J |
| Outer Diametermeter mm |
Overall Diameter mm |
Plate Thickness min mm |
Face Diameter mm |
Number of Holes |
Bolt Hole Diameter mm |
PCD mm |
| ½ |
21.30 |
88.90 |
11.20 |
35.10 |
4 |
15.70 |
60.45 |
| ¾ |
26.70 |
98.60 |
12.70 |
42.90 |
4 |
15.70 |
69.85 |
| 1 |
33.40 |
108.0 |
14.20 |
50.80 |
4 |
15.70 |
79.25 |
| 1 ¼ |
42.20 |
117.3 |
15.70 |
63.50 |
4 |
15.70 |
88.90 |
| 1 ½ |
48.30 |
127.0 |
17.50 |
73.15 |
4 |
15.70 |
98.60 |
| 2 |
60.30 |
152.4 |
19.10 |
91.90 |
4 |
19.10 |
120.7 |
| 2 ½ |
73.00 |
177.8 |
22.40 |
104.6 |
4 |
19.10 |
139.7 |
| 3 |
88.90 |
190.5 |
23.90 |
127.0 |
4 |
19.10 |
152.4 |
| 3 ½ |
101.6 |
215.9 |
23.90 |
139.7 |
8 |
19.10 |
177.8 |
| 4 |
114.3 |
228.6 |
23.90 |
157.2 |
8 |
19.10 |
190.5 |
| 5 |
141.3 |
254.0 |
23.90 |
185.7 |
8 |
22.40 |
215.9 |
| 6 |
168.3 |
279.4 |
25.40 |
215.9 |
8 |
22.40 |
241.3 |
|
219.1 |
342.9 |
28.40 |
269.7 |
8 |
22.40 |
298.5 |
| 10 |
273.0 |
406.4 |
30.20 |
323.8 |
12 |
25.40 |
362.0 |
| 12 |
323.8 |
482.6 |
31.75 |
381.0 |
12 |
25.40 |
431.8 |
| 14 |
355.6 |
533.4 |
35.10 |
412.7 |
12 |
28.40 |
476.3 |
| 16 |
406.4 |
596.9 |
36.60 |
469.9 |
16 |
28.40 |
539.8 |
| 18 |
457.2 |
635.0 |
39.60 |
533.4 |
16 |
31.75 |
577.9 |
| 20 |
508.0 |
698.5 |
42.90 |
584.2 |
20 |
31.75 |
635.0 |
| 24 |
609.6 |
812.8 |
47.80 |
692.1 |
20 |
35.10 |
749.3 |
Notes
- Weights of ANSI B 150 Class blind flanges are based on
manufacturer's data and are approximate.
- Flat face flanges may be provided at full thickness, C, or with
raised face removed (the latter is non standard)
|
ANSI B 300 Class
| Pipe |
Flange
Dimension |
RF |
Drilling
Dimension |
| Size |
|
A |
C |
G |
H |
I |
J |
| Outer Diametermeter mm |
Overall Diameter mm |
Plate Thickness min mm |
Face Diameter mm |
Number of Holes |
Bolt Hole Diameter mm |
PCD mm |
| ½ |
21.30 |
95.30 |
14.20 |
35.10 |
4 |
15.70 |
66.55 |
| ¾ |
26.70 |
117.3 |
15.70 |
42.90 |
4 |
19.00 |
82.50 |
| 1 |
33.40 |
124.0 |
17.50 |
50.80 |
4 |
19.00 |
88.90 |
| 1 ¼ |
42.20 |
133.4 |
19.00 |
63.50 |
4 |
19.00 |
98.50 |
| 1 ½ |
48.30 |
155.4 |
20.60 |
73.15 |
4 |
22.30 |
114.3 |
| 2 |
60.30 |
165.1 |
22.30 |
91.90 |
8 |
19.00 |
127.0 |
| 2 ½ |
73.00 |
190.5 |
25.40 |
104.6 |
8 |
22.30 |
149.3 |
| 3 |
88.90 |
209.6 |
28.40 |
127.0 |
8 |
22.30 |
168.1 |
| 3 ½ |
101.6 |
228.6 |
30.20 |
139.7 |
8 |
22.30 |
184.1 |
| 4 |
114.3 |
254.0 |
31.70 |
157.2 |
8 |
22.30 |
200.1 |
| 5 |
141.3 |
279.4 |
35.00 |
185.7 |
8 |
22.30 |
234.9 |
| 6 |
168.3 |
317.5 |
36.50 |
215.9 |
12 |
22.30 |
269.7 |
| 8 |
219.1 |
381.0 |
41.10 |
269.7 |
12 |
25.40 |
330.2 |
| 10 |
273.0 |
444.5 |
47.70 |
323.8 |
16 |
28.40 |
387.3 |
| 12 |
323.8 |
520.7 |
50.80 |
381.0 |
16 |
31.70 |
450.8 |
| 14 |
355.6 |
584.2 |
53.80 |
412.7 |
20 |
31.70 |
514.3 |
| 16 |
406.4 |
647.7 |
57.15 |
469.9 |
20 |
35.00 |
571.5 |
| 18 |
457.2 |
711.2 |
60.45 |
533.4 |
24 |
35.00 |
628.6 |
| 20 |
508.0 |
774.7 |
63.50 |
584.2 |
24 |
35.00 |
685.8 |
| 24 |
609.6 |
914.4 |
69.85 |
692.1 |
24 |
41.10 |
812.8 |
Notes
- ANSI B 300 Class blind flanges weights are based on
manufacturer's data and are approximate.
- Flat face flanges may be provided at full thickness, C, or with
raised face removed (the latter is non standard)
|
ANSI B 600 Class
| Pipe |
Flange
Dimension |
RF |
Drilling
Dimension |
| Size |
|
A |
C |
G |
H |
I |
J |
| Outer Diametermeter mm |
Overall Diameter mm |
Plate Thickness min mm |
Face Diameter mm |
Number of Holes |
Bolt Hole Diameter mm |
PCD mm |
| ½ |
21.30 |
95.30 |
14.20 |
35.10 |
4 |
15.70 |
66.55 |
| ¾ |
26.70 |
117.3 |
15.70 |
42.90 |
4 |
19.10 |
82.60 |
| 1 |
33.40 |
124.0 |
17.50 |
50.80 |
4 |
19.10 |
88.90 |
| 1 ¼ |
42.20 |
133.4 |
20.60 |
63.50 |
4 |
19.10 |
98.60 |
| 1 ½ |
48.30 |
155.4 |
22.40 |
73.15 |
4 |
22.40 |
114.3 |
| 2 |
60.30 |
165.1 |
25.40 |
91.90 |
8 |
19.10 |
127.0 |
| 2 ½ |
73.00 |
190.5 |
28.40 |
104.6 |
8 |
22.40 |
149.4 |
| 3 |
88.90 |
209.5 |
31.75 |
127.0 |
8 |
22.40 |
168.1 |
| 3 ½ |
101.6 |
228.6 |
35.10 |
139.7 |
8 |
25.40 |
184.2 |
| 4 |
114.3 |
273.1 |
38.10 |
157.2 |
8 |
25.40 |
215.9 |
| 5 |
141.3 |
330.2 |
44.50 |
185.7 |
8 |
28.40 |
266.7 |
| 6 |
168.3 |
355.6 |
47.80 |
215.9 |
12 |
28.40 |
292.1 |
| 8 |
219.1 |
419.1 |
55.60 |
269.7 |
12 |
31.75 |
349.3 |
| 10 |
273.0 |
508.0 |
63.50 |
323.8 |
16 |
35.10 |
431.8 |
| 12 |
323.8 |
558.8 |
66.55 |
381.0 |
20 |
35.10 |
489.0 |
| 14 |
355.6 |
603.3 |
69.85 |
412.7 |
20 |
38.10 |
527.1 |
| 16 |
406.4 |
685.8 |
76.20 |
469.9 |
20 |
41.10 |
603.3 |
| 18 |
457.2 |
743.0 |
82.60 |
533.4 |
20 |
44.50 |
654.1 |
| 20 |
508.0 |
812.8 |
88.90 |
584.2 |
24 |
44.50 |
723.9 |
| 24 |
609.6 |
939.8 |
101.6 |
692.1 |
24 |
50.80 |
838.2 |
Notes
- Weights of blind flanges are based on manufacturer's data and are
approximate.
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