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WNRF Flanges
Offering our clients a wide and unmatched range of weld
neck flanges. Our flanges are resistant to corrosion and abrasion. Our
products range find wide application in national and international
industries of diverse sectors. Made from superior grade raw material, these
weld neck flanges ensure durable performance at client's end and are
available at most competitive prices. We can customize our range of weld
neck flanges as per the requirement of the bulk buyers.
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 |
Neck
Dimension |
RF |
Drilling
Dimension |
| Size |
|
A |
B |
C |
D |
E |
F |
G |
H |
I |
J |
| Outer Diametermeter mm |
Overall Diameter mm |
Inner Diameter mm |
Plate Thickness min mm |
Total Height mm |
Neck Dia mm |
Hub Diameter mm |
Face Diameter mm |
Number of Holes |
Bolt Hole Diameter mm |
PCD mm |
| ½ |
21.30 |
88.90 |
15.70 |
11.20 |
47.80 |
21.30 |
30.20 |
35.00 |
4 |
15.70 |
60.45 |
| ¾ |
26.70 |
98.60 |
20.80 |
12.70 |
52.30 |
26.70 |
38.10 |
42.90 |
4 |
15.70 |
69.85 |
| 1 |
33.40 |
108.0 |
26.70 |
14.20 |
55.60 |
33.50 |
49.30 |
50.80 |
4 |
15.70 |
79.25 |
| 1 ¼ |
42.20 |
117.3 |
35.10 |
15.70 |
57.15 |
42.20 |
58.70 |
63.50 |
4 |
15.70 |
88.90 |
| 1 ½ |
48.30 |
127.0 |
40.90 |
17.50 |
62.00 |
48.30 |
65.00 |
73.15 |
4 |
15.70 |
98.60 |
| 2 |
60.30 |
152.4 |
52.60 |
19.10 |
63.50 |
60.45 |
77.70 |
91.90 |
4 |
19.10 |
120.7 |
| 2 ½ |
73.00 |
177.8 |
62.70 |
22.40 |
69.85 |
73.15 |
90.40 |
104.6 |
4 |
19.10 |
139.7 |
| 3 |
88.90 |
190.5 |
78.00 |
23.90 |
69.85 |
88.90 |
108.0 |
127.0 |
4 |
19.10 |
152.4 |
| 3 ½ |
101.6 |
215.9 |
90.20 |
23.90 |
71.40 |
101.6 |
122.2 |
139.7 |
8 |
19.10 |
177.8 |
| 4 |
114.3 |
228.6 |
102.4 |
23.90 |
76.20 |
114.3 |
134.9 |
157.2 |
8 |
19.10 |
190.5 |
| 5 |
141.3 |
254.0 |
128.3 |
23.90 |
88.90 |
141.2 |
163.6 |
185.7 |
8 |
22.40 |
215.9 |
| 6 |
168.3 |
279.4 |
154.2 |
25.40 |
88.90 |
168.4 |
192.0 |
215.9 |
8 |
22.40 |
241.3 |
| 8 |
219.1 |
342.9 |
202.7 |
28.40 |
101.6 |
219.2 |
246.1 |
269.7 |
8 |
22.40 |
298.5 |
| 10 |
273.0 |
406.4 |
254.5 |
30.20 |
101.6 |
273.0 |
304.8 |
323.8 |
12 |
25.40 |
362.0 |
| 12 |
323.8 |
482.6 |
304.8 |
31.75 |
114.3 |
323.8 |
365.3 |
381.0 |
12 |
25.40 |
431.8 |
| 14 |
355.6 |
533.4 |
 |
35.10 |
127.0 |
355.6 |
400.1 |
412.7 |
12 |
28.40 |
476.3 |
| 16 |
406.4 |
596.9 |
36.60 |
127.0 |
406.4 |
475.2 |
469.9 |
16 |
28.40 |
539.8 |
| 18 |
457.2 |
635.0 |
39.60 |
139.7 |
457.2 |
505.0 |
533.4 |
16 |
31.75 |
577.9 |
| 20 |
508.0 |
698.5 |
42.90 |
144.5 |
508.0 |
558.8 |
584.2 |
20 |
31.75 |
635.0 |
| 24 |
609.6 |
812.8 |
47.80 |
152.4 |
609.6 |
663.4 |
692.1 |
20 |
35.10 |
749.3 |
Notes
- Flanges dimensions B corresponds to the pipe inside diameter.
Values quoted assume 40S/Standard wall thickness
- ANSI B 150 Class flanges weights are based on manufacturer's data
and are approximate.
|
ANSI B 300 Class
| Pipe |
Flange
Dimension |
Neck
Dimension |
RF |
Drilling
Dimension |
| Size |
|
A |
B |
C |
D |
E |
F |
G |
H |
I |
J |
| Outer Diametermeter mm |
Overall Diameter mm |
Inner Diameter mm |
Plate Thickness min mm |
Total Height mm |
Neck Dia mm |
Hub Diameter mm |
Face Diameter mm |
Number of Holes |
Bolt Hole Diameter mm |
PCD mm |
| ½ |
21.30 |
95.30 |
15.70 |
14.20 |
52.30 |
21.30 |
38.10 |
35.00 |
4 |
15.70 |
66.55 |
| ¾ |
26.70 |
117.3 |
20.80 |
15.70 |
57.15 |
26.70 |
42.70 |
42.90 |
4 |
19.00 |
82.50 |
| 1 |
33.40 |
124.0 |
26.70 |
17.50 |
62.00 |
33.50 |
53.80 |
50.80 |
4 |
19.00 |
88.90 |
| 1 ¼ |
42.20 |
133.4 |
35.10 |
19.00 |
65.00 |
42.20 |
63.50 |
63.50 |
4 |
19.00 |
98.50 |
| 1 ½ |
48.30 |
155.4 |
40.90 |
20.60 |
68.30 |
48.30 |
69.85 |
73.15 |
4 |
22.30 |
114.3 |
| 2 |
60.30 |
165.1 |
52.60 |
22.30 |
69.85 |
60.45 |
84.00 |
91.90 |
8 |
19.00 |
127.0 |
| 2 ½ |
73.00 |
190.5 |
62.70 |
25.40 |
76.20 |
73.15 |
100.0 |
104.6 |
8 |
22.30 |
149.3 |
| 3 |
88.90 |
209.6 |
78.00 |
28.40 |
79.25 |
88.90 |
117.3 |
127.0 |
8 |
22.30 |
168.1 |
| 3 ½ |
101.6 |
228.6 |
90.20 |
30.20 |
81.00 |
101.6 |
133.3 |
139.7 |
8 |
22.30 |
184.1 |
| 4 |
114.3 |
254.0 |
102.4 |
31.70 |
85.80 |
114.3 |
146.0 |
157.2 |
8 |
22.30 |
200.1 |
| 5 |
141.3 |
279.4 |
128.3 |
35.00 |
98.50 |
141.2 |
177.8 |
185.7 |
8 |
22.30 |
234.9 |
| 6 |
168.3 |
317.5 |
154.2 |
36.50 |
98.50 |
168.4 |
206.2 |
215.9 |
12 |
22.30 |
269.7 |
| 8 |
219.1 |
381.0 |
202.7 |
41.10 |
111.2 |
219.2 |
260.3 |
269.7 |
12 |
25.40 |
330.2 |
| 10 |
273.0 |
444.5 |
254.5 |
47.70 |
117.3 |
273.0 |
320.5 |
323.8 |
16 |
28.40 |
387.3 |
| 12 |
323.8 |
520.7 |
304.8 |
50.80 |
130.0 |
323.8 |
374.6 |
381.0 |
16 |
31.70 |
450.8 |
| 14 |
355.6 |
584.2 |
|
53.80 |
142.7 |
355.6 |
425.4 |
412.7 |
20 |
31.70 |
514.3 |
| 16 |
406.4 |
647.7 |
57.15 |
146.0 |
406.4 |
482.6 |
469.9 |
20 |
35.00 |
571.5 |
| 18 |
457.2 |
711.2 |
60.45 |
158.7 |
457.2 |
533.4 |
533.4 |
24 |
35.00 |
628.6 |
| 20 |
508.0 |
774.7 |
63.50 |
162.0 |
508.0 |
587.2 |
584.2 |
24 |
35.00 |
685.8 |
| 24 |
609.6 |
914.4 |
69.85 |
168.1 |
609.6 |
701.5 |
692.1 |
24 |
41.10 |
812.8 |
|
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Notes
- ANSI B 300 Class flanges dimensions B corresponds to the pipe
inside diameter. Values quoted assume 40S/Standard wall thickness
- ANSI B 300 Class flanges weights are based on manufacturer's data
and are approximate.
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