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
| 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:-
The threaded flanges conforms to ASME B1. 20.1 NTP threads. (The only exceptions are small male and female plain face threaded flanges which use NPSL locknut threads)
Class 300 and higher threaded flanges are counter-bored. Threads are chamfered to the counterbore at an angle of 450 (approx)
Weights are based on manufacturer's data and are approximate
