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Threaded Steel Flanges
We specialize in manufacturing high quality and wide
variety of threaded steel flanges. These are highly appreciated for its
dimensionally accurate and corrosion resistant features. All our products
require less maintenance and are ideal for high temperature & pressure
applications. These steel threaded flanges can be place with the pipe
without welding and give flawless performance. Available at the most
competitive prices, these stainless steel threaded flanges can be customized
as per the client's requirement.
Stainless Steel : ASTM A 182, A 240
Grade : F 304, 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 600 Class
| Pipe |
Flange
Dimension |
Hub Dimension |
RF |
Drilling
Dimension |
| Size |
|
A |
B |
C |
D |
E |
F |
G |
H |
I |
J |
Outer Diameter
mm |
Overall Dia
mm |
Counter Bore
mm |
Plate Thickness
min mm |
Total Height
mm |
Threaded Length min
mm |
Hub Dia
mm |
Face Dia
mm |
Number of Holes |
Bolt Hole Dia
mm |
PCD mm
|
| ½ |
21.30 |
95.30 |
23.60 |
14.20 |
22.40 |
15.70 |
38.10 |
35.00 |
4 |
15.70 |
66.55 |
| ¾ |
26.70 |
117.3 |
29.00 |
15.70 |
25.40 |
15.70 |
47.80 |
42.90 |
4 |
19.10 |
82.60 |
| 1 |
33.40 |
124.0 |
35.80 |
17.50 |
28.40 |
17.50 |
53.80 |
50.80 |
4 |
19.10 |
88.90 |
| 1 ¼ |
42.20 |
133.4 |
44.40 |
20.60 |
28.40 |
20.60 |
63.50 |
63.50 |
4 |
19.10 |
98.60 |
| 1 ½ |
48.30 |
155.4 |
50.50 |
22.40 |
31.75 |
22.40 |
69.85 |
73.15 |
4 |
22.40 |
114.3 |
| 2 |
60.30 |
165.1 |
63.50 |
25.40 |
36.60 |
28.40 |
84.10 |
91.90 |
8 |
19.10 |
127.0 |
| 2 ½ |
73.00 |
190.5 |
76.20 |
28.40 |
41.10 |
31.75 |
100.1 |
104.6 |
8 |
22.40 |
149.4 |
| 3 |
88.90 |
209.6 |
92.20 |
31.75 |
46.00 |
35.10 |
117.3 |
127.0 |
8 |
22.40 |
168.1 |
| 3 ½ |
101.6 |
228.6 |
104.9 |
35.10 |
49.30 |
39.60 |
133.4 |
139.7 |
8 |
25.40 |
184.2 |
| 4 |
114.3 |
273.1 |
117.6 |
38.10 |
53.80 |
41.10 |
152.4 |
157.2 |
8 |
25.40 |
215.9 |
| 5 |
141.3 |
330.2 |
144.5 |
44.50 |
60.45 |
47.80 |
189.0 |
185.7 |
8 |
28.40 |
266.7 |
| 6 |
168.3 |
355.6 |
171.4 |
47.80 |
66.55 |
50.80 |
222.3 |
215.9 |
12 |
28.40 |
292.1 |
| 8 |
219.1 |
419.1 |
222.3 |
55.60 |
76.20 |
57.15 |
273.1 |
269.7 |
12 |
31.75 |
349.3 |
| 10 |
273.0 |
508.0 |
276.3 |
63.50 |
85.90 |
65.00 |
342.9 |
323.8 |
16 |
35.10 |
431.8 |
| 12 |
323.8 |
558.8 |
328.7 |
66.55 |
91.90 |
69.85 |
400.1 |
381.0 |
20 |
35.10 |
489.0 |
| 14 |
355.6 |
603.3 |
360.4 |
69.85 |
93.70 |
73.15 |
431.8 |
412.7 |
20 |
38.10 |
527.1 |
| 16 |
406.4 |
685.8 |
411.2 |
76.20 |
106.4 |
77.70 |
495.3 |
469.9 |
20 |
41.10 |
603.3 |
| 18 |
457.2 |
743.0 |
462.0 |
82.60 |
117.3 |
79.25 |
546.1 |
533.4 |
20 |
44.50 |
654.1 |
| 20 |
508.0 |
812.8 |
512.8 |
88.90 |
127.0 |
82.60 |
609.6 |
584.2 |
24 |
44.50 |
723.9 |
| 24 |
609.6 |
939.8 |
614.4 |
101.6 |
139.7 |
91.90 |
717.6 |
692.1 |
24 |
50.80 |
838.2 |
Notes
- The ANSI B 600 Class threaded flanges conforms to ASME B1. 20.1
NTP threads. (The only exceptions are small male and female plain
face threaded flanges which uses NPSL locknut threads)
- Weights are based on manufacturer's data and are approximate
- Class 300 and higher threaded flanges are counter-bored. Threads
are chamfered to the counterbore at an angle of 450
(approx)
|
ANSI B 900 Class
| Pipe |
Flange Dimension |
Hub Dimension |
RF |
Drilling
Dimension |
| Size |
|
A |
B |
C |
D |
E |
F |
G |
H |
I |
J |
Outer Diameter
mm |
Overall Dia
mm |
Counter Bore
mm |
Plate Thickness min
mm |
Total Height
mm |
Threaded Length min
mm |
Hub Dia
mm |
Face Dia
mm |
Number of Holes |
Bolt Hole Dia
mm |
PCD mm
|
| ½ |
21.30 |
120.6 |
23.60 |
22.30 |
31.70 |
22.30 |
38.10 |
35.10 |
4 |
22.30 |
82.50 |
| ¾ |
26.70 |
130.0 |
29.00 |
25.40 |
35.00 |
25.40 |
44.00 |
42.90 |
4 |
22.30 |
88.90 |
| 1 |
33.40 |
149.3 |
35.80 |
28.40 |
41.10 |
28.40 |
52.30 |
50.80 |
4 |
25.40 |
101.6 |
| 1 ¼ |
42.20 |
158.7 |
44.40 |
28.40 |
41.10 |
30.20 |
63.50 |
63.50 |
4 |
25.40 |
111.2 |
| 1 ½ |
48.30 |
177.8 |
50.50 |
31.70 |
44.50 |
31.70 |
69.85 |
73.15 |
4 |
28.40 |
123.9 |
| 2 |
60.30 |
215.9 |
63.50 |
38.10 |
57.15 |
38.10 |
104.6 |
91.90 |
8 |
25.40 |
165.1 |
| 2 ½ |
73.00 |
244.3 |
76.20 |
41.10 |
63.50 |
47.70 |
123.9 |
104.6 |
8 |
28.40 |
190.5 |
| 3 |
88.90 |
241.3 |
92.20 |
38.10 |
53.80 |
41.10 |
127.0 |
127.0 |
8 |
25.40 |
190.5 |
| 4 |
114.3 |
292.1 |
117.6 |
44.40 |
69.85 |
47.80 |
158.7 |
157.2 |
8 |
31.70 |
234.9 |
| 5 |
141.3 |
349.2 |
144.5 |
50.80 |
79.25 |
53.80 |
190.5 |
185.7 |
8 |
35.00 |
279.4 |
| 6 |
168.3 |
381.0 |
171.4 |
55.60 |
85.80 |
57.15 |
234.9 |
215.9 |
12 |
31.70 |
317.5 |
| 8 |
219.1 |
469.9 |
222.2 |
63.50 |
101.6 |
63.50 |
298.4 |
269.7 |
12 |
38.10 |
393.7 |
| 10 |
273.0 |
546.1 |
276.3 |
69.85 |
107.9 |
71.40 |
368.3 |
323.8 |
16 |
38.10 |
469.9 |
| 12 |
323.8 |
609.6 |
328.7 |
79.25 |
117.3 |
76.20 |
419.1 |
381.0 |
20 |
38.10 |
533.4 |
| 14 |
355.6 |
641.3 |
360.4 |
85.80 |
130.0 |
82.50 |
450.8 |
412.7 |
20 |
41.10 |
558.8 |
| 16 |
406.4 |
704.8 |
411.2 |
88.90 |
133.3 |
85.90 |
508.0 |
469.9 |
20 |
44.40 |
615.9 |
| 18 |
457.2 |
787.4 |
462.0 |
101.6 |
152.4 |
88.90 |
565.1 |
533.4 |
20 |
50.80 |
685.8 |
| 20 |
508.0 |
857.2 |
512.8 |
107.9 |
158.7 |
91.90 |
622.3 |
584.2 |
20 |
53.80 |
749.3 |
| 24 |
609.6 |
1041.4 |
614.4 |
139.7 |
203.2 |
101.6 |
749.3 |
692.1 |
20 |
66.55 |
901.7 |
Notes
- The thread conforms to ASME B1. 20.1 NTP threads as described in
Section 10. (The only exceptions are small male and female plain
face threaded flanges which use NPSL locknut threads)
- Weights are based on manufacturer's data and are approximate
- Class 300 and higher threaded flanges are counter-bored. Threads
are chamfered to the counterbore at an angle of 450
(approx)
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