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Threaded Flanges
Our range of threaded flanges and NPT flanges are
manufactured as per international quality standards and is available in
various dimensions. Our threaded flanges are used with their main advantage
being that they can be used for extraordinary circumstances and in highly
volatile areas where welding is hazardous. Our NPT threaded flanges can
attached to the pipe without welding. These are low maintenance threaded
flanges made from high quality raw material, that are available at fair
prices. We ensure timely delivery of the products within stipulated time
frame.
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 150 Class
| Pipe |
Flange Dimension
|
Hub Dimension |
RF |
Drilling
Dimension |
| Size |
|
A |
C |
D |
E |
F |
G |
H |
I |
J |
Outer Diameter
mm |
Overall Dia
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 |
88.90 |
11.20 |
15.70 |
15.70 |
30.20 |
35.00 |
4 |
15.70 |
60.45 |
| ¾ |
26.70 |
98.60 |
12.70 |
15.70 |
15.70 |
38.10 |
42.90 |
4 |
15.70 |
69.85 |
| 1 |
33.40 |
108.0 |
14.20 |
17.50 |
17.50 |
49.30 |
50.80 |
4 |
15.70 |
79.25 |
| 1 ¼ |
42.20 |
117.3 |
15.70 |
20.60 |
20.60 |
58.70 |
63.50 |
4 |
15.70 |
88.90 |
| 1 ½ |
48.30 |
127.0 |
17.50 |
22.40 |
22.40 |
65.00 |
73.15 |
4 |
15.70 |
98.60 |
| 2 |
60.30 |
152.4 |
19.10 |
25.40 |
25.40 |
77.70 |
91.90 |
4 |
19.10 |
120.7 |
| 2 ½ |
73.00 |
177.8 |
22.40 |
28.40 |
28.40 |
90.40 |
104.6 |
4 |
19.10 |
139.7 |
| 3 |
88.90 |
190.5 |
23.90 |
30.20 |
30.20 |
108.0 |
127.0 |
4 |
19.10 |
152.4 |
| 3 ½ |
101.6 |
215.9 |
23.90 |
31.75 |
31.75 |
122.2 |
139.7 |
8 |
19.10 |
177.8 |
| 4 |
114.3 |
228.6 |
23.90 |
33.30 |
33.30 |
134.9 |
157.2 |
8 |
19.10 |
190.5 |
| 5 |
141.3 |
254.0 |
23.90 |
36.60 |
36.60 |
163.6 |
185.7 |
8 |
22.40 |
215.9 |
| 6 |
168.3 |
279.4 |
25.40 |
39.60 |
39.60 |
192.0 |
215.9 |
8 |
22.40 |
241.3 |
| 8 |
219.1 |
342.9 |
28.40 |
44.50 |
44.50 |
246.1 |
269.7 |
8 |
22.40 |
298.5 |
| 10 |
273.0 |
406.4 |
30.20 |
49.30 |
49.30 |
304.8 |
323.8 |
12 |
25.40 |
362.0 |
| 12 |
12.75 |
19.00 |
1.250 |
2.190 |
2.190 |
14.38 |
15.00 |
12 |
1.000 |
17.00 |
| 14 |
355.6 |
533.4 |
35.10 |
57.15 |
57.15 |
400.1 |
412.7 |
12 |
28.40 |
476.3 |
| 16 |
406.4 |
596.9 |
36.60 |
63.50 |
63.50 |
475.2 |
469.9 |
16 |
28.40 |
539.8 |
| 18 |
457.2 |
635.0 |
39.60 |
68.30 |
68.30 |
505.0 |
533.4 |
16 |
31.75 |
577.9 |
| 20 |
508.0 |
698.5 |
42.90 |
73.15 |
73.15 |
558.8 |
584.2 |
20 |
31.75 |
635.0 |
| 24 |
609.6 |
812.8 |
47.80 |
82.60 |
82.60 |
663.4 |
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
|
ANSI B 300 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 |
22.30 |
15.70 |
38.10 |
35.00 |
4 |
15.70 |
66.55 |
| ¾ |
26.70 |
117.3 |
29.00 |
15.70 |
25.40 |
15.70 |
42.70 |
42.90 |
4 |
19.00 |
82.50 |
| 1 |
33.40 |
124.0 |
35.80 |
17.50 |
26.90 |
17.50 |
53.80 |
50.80 |
4 |
19.00 |
88.90 |
| 1 ¼ |
42.20 |
133.4 |
44.40 |
19.00 |
26.90 |
20.60 |
63.50 |
63.50 |
4 |
19.00 |
98.50 |
| 1 ½ |
48.30 |
155.4 |
50.50 |
20.60 |
30.20 |
22.30 |
69.85 |
73.15 |
4 |
22.30 |
114.3 |
| 2 |
60.30 |
165.1 |
63.50 |
22.30 |
33.20 |
28.40 |
84.00 |
91.90 |
8 |
19.00 |
127.0 |
| 2 ½ |
73.00 |
190.5 |
76.20 |
25.40 |
38.10 |
31.70 |
100.0 |
104.6 |
8 |
22.30 |
149.3 |
| 3 |
88.90 |
209.6 |
92.20 |
28.40 |
42.90 |
31.70 |
117.3 |
127.0 |
8 |
22.30 |
168.1 |
| 3 ½ |
101.6 |
228.6 |
104.9 |
30.20 |
44.40 |
36.50 |
133.3 |
139.7 |
8 |
22.30 |
184.1 |
| 4 |
114.3 |
254.0 |
117.6 |
31.70 |
47.70 |
36.50 |
146.0 |
157.2 |
8 |
22.30 |
200.1 |
| 5 |
141.3 |
279.4 |
144.5 |
35.00 |
50.80 |
42.90 |
177.8 |
185.7 |
8 |
22.30 |
234.9 |
| 6 |
168.3 |
317.5 |
171.4 |
36.50 |
52.30 |
45.90 |
206.2 |
215.9 |
12 |
22.30 |
269.7 |
| 8 |
219.1 |
381.0 |
222.3 |
41.10 |
61.90 |
50.80 |
260.3 |
269.7 |
12 |
25.40 |
330.2 |
| 10 |
273.0 |
444.5 |
276.3 |
47.70 |
66.55 |
55.60 |
320.5 |
323.8 |
16 |
28.40 |
387.3 |
| 12 |
323.8 |
520.7 |
328.7 |
50.80 |
73.15 |
60.45 |
374.6 |
381.0 |
16 |
31.70 |
450.8 |
| 14 |
355.6 |
584.2 |
360.4 |
53.80 |
76.20 |
63.50 |
425.4 |
412.7 |
20 |
31.70 |
514.3 |
| 16 |
406.4 |
647.7 |
411.2 |
57.15 |
82.50 |
68.30 |
482.6 |
469.9 |
20 |
35.00 |
571.5 |
| 18 |
457.2 |
711.2 |
462.0 |
60.45 |
88.90 |
69.85 |
533.4 |
533.4 |
24 |
35.00 |
628.6 |
| 20 |
508.0 |
774.7 |
512.8 |
63.50 |
95.2 |
73.15 |
587.2 |
584.2 |
24 |
35.00 |
685.8 |
| 24 |
609.6 |
914.4 |
614.4 |
69.85 |
106.4 |
82.50 |
701.5 |
692.1 |
24 |
41.10 |
812.8 |
Notes
- The ANSI B 300 Class 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)
- ANSI B 300 Class flanges weights are based on manufacturer's data
and are approximate
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