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Weld Neck Flanges Manufacturer In India

ANSI B16.5 Weld Neck Flanges

ASME B16.5 class 150 weld neck reducing flange, Weld neck raised face manufacturer in India

Exporter of Weld neck ring joint flange, ANSI b16.5 long weld neck flange in South Africa, Iran, Iraq

ANSI B16.5 Weld Neck Flanges

ANSI B16.5 Weld Neck Flanges

Stainless steel Weld Neck Flanges

Stainless steel Weld Neck Flanges

Carbon steel Weld Neck Flanges

Carbon steel Weld Neck Flanges

Dinesh Industries is a specialised manufacturer of high quality ASME/ANSI/DIN industrial Weld Neck flanges in India. We offer immediate delivery programs for standard size of carbon steel Weld Neck flanges and stainless steel Weld Neck flanges. Plate Weld Neck flanges manufactured in special stainless steel grades, nickel alloy and alloy steel can be supplied with just in time programs.

As made obvious by their name, these pipe flanges slip over the pipe. They’re manufactured with an inside diameter that is slightly bigger than the pipe’s outside diameter. These attachments are connected to the pipe via fillet weld at the top and bottom of the flange.Weld Neck pipe flanges are typically provided with a raised or flat face. When a raised face is necessary for Weld Neck pipe flanges, the standard height is 1/16″ for Weld Neck pipe flanges under 400#. For Weld Neck pipe flanges of 400# and up, the standard Weld Neck pipe flange raised face height is 1/4″.

Weld Neck Flanges Specification

Product Type WN Forged Flange , Weld Neck Flanges – WNRF
Size ½” (15 NB) to 48″ (1200NB)
Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40 Etc.
Stainless Steel Weld Neck Flanges ASTM A 182, A 240 F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H,904L
Carbon Steel Weld Neck Flanges ASTM / ASME A/SA 105 ASTM / ASME A 350 , ASTM A 181 LF 2 / A516 Gr.70 A36, A694 F42, F46, F52, F60, F65, F70
Alloy Steel Weld Neck Flanges ASTM / ASME A/SA 182 & A 387 F1, F5, F9, F11, F12, F22, F91
Duplex Steel Weld Neck Flanges ASTM / ASME A/SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61
Specialize As per drawing
Standard ANSI : ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48 ,JIS,DIN,BS4504,SABS1123,EN1092-1, UNI,AS2129,GOST-12820DIN : DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636, DIN2637, DIN2638, DIN2673B.S : BS4504 , BS4504, BS1560, BS10
Connection Type / Flange Face Type Ring Type Joint, Lap-Joint Face, Raised Face, Flat Face, Large Male-Female, Small Male-Female, Large Tongue & Groove, Small Tongue & Groove

 

ANSI B16.5 weld neck flange material

Dimensions Base Material Pressure Rating
ASME B16.5 ASTM A182 (Forgings) ASTM A240 (Plate) 150#. 300#. 400#. 600#. 900#. 1500#. 2500#.
API 605 ASTM A182 (Forgings) ASTM A240 (Plate) 150#. 300#. 400#. 600#. 900#. 1500#. 2500#.
ASME B16.47series A & B ASTM A182 (Forgings) ASTM A240 (Plate) 150#. 300#. 400#. 600#. 900#. 1500#. 2500#.
EN1092-1 ASTM A182 (Forgings) PN2.5. PN6. PN10. PN16. PN25. PN40. PN63. PN100. PN160. PN250. PN320. PN400.
BS4504 BS970 (Bar)ASTM A240 (Plate) ASTM A182 (Forgings) PN2.5. PN6. PN10. PN16. PN25. PN40. PN63. PN100. PN160.
BS10 BS970 (Bar)ASTM A240 (Plate) ASTM A182 (Forgings)

Typical Stainless Steel 18/8 Grade Designations:

ASTM
BS
DIN
EURONORM
304
304S15
X5 Cr Ni 18 10
1.4301
304L
304S11
X2 Cr Ni 18 9
1.4307
316
316S31
X5 Cr Ni Mo 17 12 2
1.4401
316L
316S11
X2 Cr Ni Mo 17 13 2
1.4404
321
321S31
X6 Cr Ni 18 10
1.4541
316Ti
320S31
X6 Cr Ni Mo Ti 17 12 2
1.4571
SMO
254SMO
X1 Cr Ni Mo Cu N 20 18 7
1.4547

 

Weld neck flange dimensions

Dimension of Weld Neck Flanges

Class 150 weld neck flange dimensions

 
Nominal size
Outside diam. of flange
Thick. of flange
Diam. of raised face
Diam of hub at base
Diam. of hub at point of welding
Length thru hub
No. of holes
Diam. of holes
Diam. of bolts
Diam. of bolt circle
Approx. weight pounds Kg
O
C
R
X
A
Y
in.
1/2″
3.50
0.44
1.38
1.19
0.84
1.88
4
0.62
1/2
2.38
2
mm.
88.9
11.2
35.1
30.2
21.3
47.8
15.7
12.7
60.5
1
in.
3/4″
3.88
0.50
1.69
1.50
1.05
2.06
4
0.62
1/2
2.75
2
mm.
98.6
12.7
42.9
38.1
26.7
52.3
15.7
12.7
69.9
1
in.
1″
4.25
0.56
2.00
1.94
1.32
2.19
4
0.62
1/2
3.12
3
mm.
108.0
14.2
50.8
49.3
33.5
55.6
15.7
12.7
79.2
1
in.
1 1/4″
4.62
0.62
2.50
2.31
1.66
2.25
4
0.62
1/2
3.50
3
mm.
117.3
15.7
63.5
58.7
42.2
57.2
15.7
12.7
88.9
1
in.
1 1/2″
5.00
0.69
2.88
2.56
1.90
2.44
4
0.62
1/2
3.88
4
mm.
127.0
17.5
73.2
65.0
48.3
62.0
15.7
12.7
98.6
2
in.
2″
6.00
0.75
3.62
3.06
2.38
2.50
4
0.75
5/8
4.75
6
mm.
152.4
19.1
91.9
77.7
60.5
63.5
19.1
15.9
120.7
3
in.
2 1/2″
7.00
0.88
4.12
3.56
2.88
2.75
4
0.75
5/8
5.50
8
mm.
177.8
22.4
104.6
90.4
73.2
69.9
19.1
15.9
139.7
4
in.
3″
7.50
0.94
5.00
4.25
3.50
2.75
4
0.75
5/8
6.00
10
mm.
190.5
23.9
127.0
108.0
88.9
69.9
19.1
15.9
152.4
5
in.
3 1/2″
8.50
0.94
5.50
4.81
4.00
2.81
8
0.75
5/8
7.00
12
mm.
215.9
23.9
139.7
122.2
101.6
71.4
19.1
15.9
177.8
5
in.
4″
9.00
0.94
6.19
5.31
4.50
3.00
8
0.75
5/8
7.50
15
mm.
228.6
23.9
157.2
134.9
114.3
76.2
19.1
15.9
190.5
7
in.
5″
10.00
0.94
7.31
6.44
5.56
3.50
8
0.88
3/4
8.50
19
mm.
254.0
23.9
185.7
163.6
141.2
88.9
22.4
19.1
215.9
9
in.
6″
11.00
1.00
8.50
7.56
6.63
3.50
8
0.88
3/4
9.50
24
mm.
279.4
25.4
215.9
192.0
168.4
88.9
22.4
19.1
241.3
11
in.
8″
13.50
1.12
10.62
9.69
8.63
4.00
8
0.88
3/4
11.75
39
mm.
342.9
28.4
269.7
246.1
219.2
101.6
22.4
19.1
298.5
18
in.
10″
16.00
1.19
12.75
12.00
10.75
4.00
12
1.00
7/8
14.25
52
mm.
406.4
30.2
323.9
304.8
273.1
101.6
25.4
22.2
362.0
24
in.
12″
19.00
1.25
15.00
14.38
12.75
4.50
12
1.00
7/8
17.00
80
mm.
482.6
31.8
381.0
365.3
323.9
114.3
25.4
22.2
431.8
36
in.
14″
21.00
1.38
16.25
15.75
14.00
5.00
12
1.12

1
18.75
110
mm.
533.4
35.1
412.8
400.1
355.6
127.0
28.4
25.4
476.3
50
in.
16″
23.50
1.44
18.50
18.00
16.00
5.00
16
1.12

1
21.25
140
mm.
596.9
36.6
469.9
457.2
406.4
127.0
28.4
25.4
539.8
64
in.
18″
25.00
1.56
21.00
19.88
18.00
5.50
16
1.25
1 1/8
22.75
150
mm.
635.0
39.6
533.4
505.0
457.2
139.7
31.8
28.6
577.9
68
in.
20″
27.50
1.69
23.00
22.00
20.00
5.69
20
1.25
1 1/8
25.00
180
mm.
698.5
42.9
584.2
558.8
508.0
144.5
31.8
28.6
635.0
82
in.
24″
32.00
1.88
27.25
26.12
24.00
6.00
20
1.38
1 1/4
29.50
260
mm.
812.8
47.8
692.2
663.4
609.6
152.4
35.1
31.8
749.3
118

Class 300 weld neck flange dimensions

 
Nominal size
Outside diam. of flange
Thick. of flange
Diam. of raised face
Diam of hub at base
Diam. of hub at point of welding
Length thru hub
No. of holes
Diam. of holes
Diam. of bolts
Diam. of bolt circle
Approx. weight pounds Kg
 
O
C
R
X
A
Y
in.
1/2″
3.75
0.56
1.38
1.50
0.84
2.06
4
0.62
1/2
2.62
2
mm.
95.3
14.2
35.1
38.1
21.3
52.3
15.7
12.7
66.5
1
in.
3/4″
4.62
0.62
1.69
1.88
1.05
2.25
4
0.75
5/8
3.25
3
mm.
117.3
15.7
42.9
47.8
26.7
57.2
19.1
15.9
82.6
1
in.
1″
4.88
0.69
2.00
2.12
1.32
2.44
4
0.75
5/8
3.50
4
mm.
124.0
17.5
50.8
53.8
33.5
62.0
19.1
15.9
88.9
2
in.
1 1/4″
5.25
0.75
2.50
2.50
1.66
2.56
4
0.75
5/8
3.88
5
mm.
133.4
19.1
63.5
63.5
42.2
65.0
19.1
15.9
98.6
2
in.
1 1/2″
6.12
0.81
2.88
2.75
1.90
2.69
4
0.88
3/4
4.50
7
mm.
155.4
20.6
73.2
69.9
48.3
68.3
22.4
19.1
114.3
3
in.
2″
6.50
0.88
3.62
3.31
2.38
2.75
8
0.75
5/8
5.00
9
mm.
165.1
22.4
91.9
84.1
60.5
69.9
19.1
15.9
127.0
4
in.
2 1/2″
7.50
1.00
4.12
3.94
2.88
3.00
8
0.88
3/4
5.88
12
mm.
190.5
25.4
104.6
100.1
73.2
76.2
22.4
19.1
149.4
5
in.
3″
8.25
1.12
5.00
4.62
3.50
3.12
8
0.88
3/4
6.62
15
mm.
209.6
28.4
127.0
117.3
88.9
79.2
22.4
19.1
168.1
7
in.
3 1/2″
9.00
1.19
5.50
5.25
4.00
3.19
8
0.88
3/4
7.25
18
mm.
228.6
30.2
139.7
133.4
101.6
81.0
22.4
19.1
184.2
8
in.
4″
10.00
1.25
6.19
5.75
4.50
3.38
8
0.88
3/4
7.88
25
mm.
254.0
31.8
157.2
146.1
114.3
85.9
22.4
19.1
200.2
11
in.
5″
11.00
1.38
7.31
7.00
5.56
3.88
8
0.88
3/4
9.25
32
mm.
279.4
35.1
185.7
177.8
141.2
98.6
22.4
19.1
235.0
15
in.
6″
12.50
1.44
8.50
8.12
6.63
3.88
12
0.88
3/4
10.62
42
mm.
317.5
36.6
215.9
206.2
168.4
98.6
22.4
19.1
269.7
19
in.
8″
15.00
1.62
10.62
10.25
8.63
4.38
12
1.00
7/8
13.00
67
mm.
381.0
41.1
269.7
260.4
219.2
111.3
25.4
22.2
330.2
30
in.
10″
17.50
1.88
12.75
12.62
10.75
4.62
16
1.12
1
15.25
91
mm.
444.5
47.8
323.9
320.5
273.1
117.3
28.4
25.4
387.4
41
in.
12″
20.50
2.00
15.00
14.75
12.75
5.12
16
1.25
1 1/8
17.75
140
mm.
520.7
50.8
381.0
374.7
323.9
130.0
31.8
28.6
450.9
64
in.
14″
23.00
2.12
16.25
16.75
14.00
5.62
20
1.25
1 1/8
20.25
180
mm.
584.2
53.8
412.8
425.5
355.6
142.7
31.8
28.6
514.4
82
in.
16″
25.50
2.25
18.50
19.00
16.00
5.75
20
1.38
1 1/4
22.50
250
mm.
647.7
57.2
469.9
482.6
406.4
146.1
35.1
31.8
571.5
113
in.
18″
28.00
2.38
21.00
21.00
18.00
6.25
24
1.38
1 1/4
24.75
320
mm.
711.2
60.5
533.4
533.4
457.2
158.8
35.1
31.8
628.7
145
in.
20″
30.50
2.50
23.00
23.12
20.00
6.38
24
1.38
1 1/4
27.00
400
mm.
774.7
63.5
584.2
587.2
508.0
162.1
35.1
31.8
685.8
181
in.
24″
36.00
2.75
27.25
27.62
24.00
6.62
24
1.62
1 1/2
32.00
580
mm.
914.4
69.9
692.2
701.5
609.6
168.1
41.1
38.1
812.8
263

Class 600 weld neck flange dimensions

 
Nominal size
Outside diam. of flange
Thick. of flange
Diam. of raised face
Diam of hub at base
Diam. of hub at point of welding
Length thru hub
No. of holes
Diam. of holes
Diam. of bolts
Diam. of bolt circle
Approx. weight pounds Kg
 
O
C
R
X
A
Y
in.
1/2″
3.75
0.56
1.38
1.50
0.84
2.06
4
0.62
1/2
2.62
2
mm.
95.3
14.2
35.1
38.1
21.3
52.3
15.7
12.7
66.5
1
in.
3/4″
4.62
0.62
1.69
1.88
1.05
2.25
4
0.75
5/8
3.25
4
left.
117.3
15.7
42.9
47.8
26.7
57.2
19.1
15.9
82.6
2
in.
1″
4.88
0.69
2.00
2.12
1.32
2.44
4
0.75
5/8
3.50
4
mm.
124.0
17.5
50.8
53.8
33.5
62.0
19.1
15.9
88.9
2
in.
1 1/4″
5.25
0.81
2.50
2.50
1.66
2.62
4
0.75
5/8
3.88
6
mm.
133.4
20.6
63.5
63.5
42.2
66.5
19.1
15.9
98.6
3
left.
1 1/2″
6.12
0.88
2.88
2.75
1.90
2.75
4
0.88
3/4
4.50
8
left.
155.4
22.4
73.2
69.9
48.3
69.9
22.4
19.1
114.3
4
in.
2″
6.50
1.00
3.62
3.31
2.38
2.88
8
0.75
5/8
5.00
12
mm.
165.1
25.4
91.9
84.1
60.5
73.2
19.1
15.9
127.0
5
in.
2 1/2″
7.50
1.12
4.12
3.94
2.88
3.12
8
0.88
3/4
5.88
18
mm.
190.5
28.4
104.6
100.1
73.2
79.2
22.4
19.1
149.4
8
left.
3″
8.25
1.25
5.00
4.62
3.50
3.25
8
0.88
3/4
6.62
23
left.
209.6
31.8
127.0
117.3
88.9
82.6
22.4
19.1
168.1
10
in.
3 1/2″
9.00
1.38
5.50
5.25
4.00
3.38
8
1.00
7/8
7.25
26
mm.
228.6
35.1
139.7
133.4
101.6
85.9
25.4
22.2
184.2
12
in.
4″
10.75
1.50
6.19
6.00
4.50
4.00
8
1.00
7/8
8.50
42
mm.
273.1
38.1
157.2
152.4
114.3
101.6
25.4
22.2
215.9
19
left.
5″
13.00
1.75
7.31
7.44
5.56
4.50
8
1.12

1
10.50
68
left.
330.2
44.5
185.7
189.0
141.2
114.3
28.4
25.4
266.7
31
in.
6″
14.00
1.88
8.50
8.75
6.63
4.62
12
1.12
1
11.50
81
mm.
355.6
47.8
215.9
222.3
168.4
117.3
28.4
25.4
292.1
37
in.
8″
16.50
2.19
10.62
10.75
8.63
5.25
12
1.25
1 1/8
13.75
120
mm.
419.1
55.6
269.7
273.1
219.2
133.4
31.8
28.6
349.3
54
left.
10″
20.00
2.50
12.75
13.50
10.75
6.00
16
1.38
1 1/4
17.00
190
left.
508.0
63.5
323.9
342.9
273.1
152.4
35.1
31.8
431.8
86
in.
12″
22.00
2.62
15.00
15.75
12.75
6.12
20
1.38
1 1/4
19.25
225
mm.
558.8
66.5
381.0
400.1
323.9
155.4
35.1
31.8
489.0
102
in.
14″
23.75
2.75
16.25
17.00
14.00
6.50
20
1.50
1 3/8
20.75
280
mm.
603.3
69.9
412.8
431.8
355.6
165.1
38.1
34.9
527.1
127
left.
16″
27.00
3.00
18.50
19.50
16.00
7.00
20
1.62
1 1/2
23.75
390
left.
685.8
76.2
469.9
495.3
406.4
177.8
41.1
38.1
603.3
177
in.
18″
29.25
3.25
21.00
21.50
18.00
7.25
20
1.75
1 5/8
25.75
475
mm.
743.0
82.6
533.4
546.1
457.2
184.2
44.5
41.3
654.1
215
in.
20″
32.00
3.50
23.00
24.00
20.00
7.50
24
1.75
1 5/8
28.50
590
mm.
812.8
88.9
584.2
609.6
508.0
190.5
44.5
41.3
723.9
268
in.
24″
37.00
4.00
27.25
28.25
24.00
8.00
24
2.00
1 7/8
33.00
830
left.
939.8
101.6
692.2
717.6
609.6
203.2
50.8
47.6
838.2
376

Class 900 weld neck flange dimensions

  Nominal size Outside diam. of flange Thick. of flange Diam. of raised face Diam of hub at base Diam. of hub at point of welding Length thru hub No. of holes Diam. of holes Diam. of bolts Diam. of bolt circle Approx. weight pounds Kg
    O C R X A Y          
in.
1/2″
Sizes 1/2″ thru 2 1/2″ are identical to Class 1500.
mm.
in.
3/4″
mm.
in.
1″
mm.
in.
1 1/4″
mm.
in.
1 1/2″
mm.
in.
2″
mm.
in.
2 1/2″
mm.
in.
3″
9.50
1.50
5.00
5.00
3.50
4.00
8
1.00
7/8
7.50
31
mm.
241.3
38.1
127.0
127.0
88.9
101.6
25.4
22.2
190.5
14
in.
4″
11.50
1.75
6.19
6.25
4.50
4.50
8
1.25
1 1/8
9.25
53
mm.
292.1
44.5
157.2
158.8
114.3
114.3
31.8
28.6
235.0
24
in.
5″
13.75
2.00
7.31
7.50
5.56
5.00
8
1.38
1 1/4
11.00
86
mm.
349.3
50.8
185.7
190.5
141.2
127.0
35.1
31.8
279.4
39
in.
6″
15.00
2.19
8.50
9.25
6.63
5.50
12
1.25
1 1/8
12.50
110
mm.
381.0
55.6
215.9
235.0
168.4
139.7
31.8
28.6
317.5
50
in.
8″
18.50
2.50
10.62
11.75
8.63
6.38
12
1.50
1 3/8
15.50
175
mm.
469.9
63.5
269.7
298.5
219.2
162.1
38.1
34.9
393.7
79
in.
10″
21.50
2.75
12.75
14.50
10.75
7.25
16
1.50
1 3/8
18.50
260
mm.
546.1
69.9
323.9
368.3
273.1
184.2
38.1
34.9
469.9
118
in.
12″
24.00
3.12
15.00
16.50
12.75
7.88
20
1.50
1 3/8
21.00
325
mm.
609.6
79.2
381.0
419.1
323.9
200.2
38.1
34.9
533.4
147
in.
14″
25.25
3.38
16.25
17.75
14.00
8.38
20
1.62
1 1/2
22.00
400
mm.
641.4
85.9
412.8
450.9
355.6
212.9
41.1
38.1
558.8
181
in.
16″
27.75
3.50
18.50
20.00
16.00
8.50
20
1.75
1 5/8
24.25
495
mm.
704.9
88.9
469.9
508.0
406.4
215.9
44.5
41.3
616.0
225
in.
18″
31.00
4.00
21.00
22.25
18.00
9.00
20
2.00
1 7/8
27.00
680
mm.
787.4
101.6
533.4
565.2
457.2
228.6
50.8
47.6
685.8
308
in.
20″
33.75
4.25
23.00
24.50
20.00
9.75
20
2.12
2
29.50
830
mm.
857.3
108.0
584.2
622.3
508.0
247.7
53.8
50.8
749.3
376
in.
24″
41.00
5.50
27.25
29.50
24.00
11.50
20
2.62
2 1/2
35.50
1500
mm.
1041.4
139.7
692.2
749.3
609.6
292.1
66.5
63.5
901.7
680

Class 1500 weld neck flange dimensions

Nominal size Outside diam. of flange Thick. of flange Diam. of raised face Diam of hub at base Diam. of hub at point of welding Length thru hub No. of holes Diam. of holes Diam. of bolts Diam. of bolt circle Approx. weight pounds Kg
O C R X A Y
in. 1/2″ 4.75 0.88 1.38 1.50 0.84 2.38 4 0.88 3/4 3.25 5
mm. 120.7 22.4 35.1 38.1 21.3 60.5 22.4 19.1 82.6 2
in. 3/4″ 5.12 1.00 1.69 1.75 1.05 2.75 4 0.88 3/4 3.50 6
mm. 130.0 25.4 42.9 44.5 26.7 69.9 22.4 19.1 88.9 3
in. 1″ 5.88 1.12 2.00 2.06 1.32 2.88 4 1.00 7/8 4.00 9
mm. 149.4 28.4 50.8 52.3 33.5 73.2 25.4 22.2 101.6 4
in. 1 1/4″ 6.25 1.12 2.50 2.50 1.66 2.88 4 1.00 7/8 4.38 10
mm. 158.8 28.4 63.5 63.5 42.2 73.2 25.4 22.2 111.3 5
in. 1 1/2″ 7.00 1.25 2.88 2.75 1.90 3.25 4 1.12 1 4.88 13
mm. 177.8 31.8 73.2 69.9 48.3 82.6 28.4 25.4 124.0 6
in. 2″ 8.50 1.50 3.62 4.12 2.38 4.00 8 1.00 7/8 6.50 25
mm. 215.9 38.1 91.9 104.6 60.5 101.6 25.4 22.2 165.1 11
in. 2 1/2″ 9.62 1.62 4.12 4.88 2.88 4.12 8 1.12 1 7.50 36
mm. 244.3 41.1 104.6 124.0 73.2 104.6 28.4 25.4 190.5 16
in. 3″ 10.50 1.88 5.00 5.25 3.50 4.62 8 1.25 1 1/8 8.00 48
mm. 266.7 47.8 127.0 133.4 88.9 117.3 31.8 28.6 203.2 22
in. 4″ 12.25 2.12 6.19 6.38 4.50 4.88 8 1.38 1 1/4 9.50 73
mm. 311.2 53.8 157.2 162.1 114.3 124.0 35.1 31.8 241.3 33
in. 5″ 14.75 2.88 7.31 7.75 5.56 6.12 8 1.62 1 1/2 11.50 130
mm. 374.7 73.2 185.7 196.9 141.2 155.4 41.1 38.1 292.1 59
in. 6″ 15.50 3.25 8.50 9.00 6.63 6.75 12 1.50 1 3/8 12.50 165
mm. 393.7 82.6 215.9 228.6 168.4 171.5 38.1 34.9 317.5 75
in. 8″ 19.00 3.62 10.62 11.50 8.63 8.38 12 1.75 1 5/8 15.50 275
mm. 482.6 91.9 269.7 292.1 219.2 212.9 44.5 41.3 393.7 125
in. 10″ 23.00 4.25 12.75 14.50 10.75 10.00 12 2.00 1 7/8 19.00 455
mm. 584.2 108.0 323.9 368.3 273.1 254.0 50.8 47.6 482.6 206
in. 12″ 26.50 4.88 15.00 17.75 12.75 11.12 16 2.12 2 22.50 690
mm. 673.1 124.0 381.0 450.9 323.9 282.4 53.8 50.8 571.5 313
in. 14″ 29.50 5.25 16.25 19.50 14.00 11.75 16 2.38 2 1/4 25.00 940
mm. 749.3 133.4 412.8 495.3 355.6 298.5 60.5 57.2 635.0 426
in. 16″ 32.50 5.75 18.50 21.75 16.00 12.25 16 2.62 2 1/2 27.75 1250
mm. 825.5 146.1 469.9 552.5 406.4 311.2 66.5 63.5 704.9 567
in. 18″ 36.00 6.38 21.00 23.50 18.00 12.88 16 2.88 2 3/4 30.50 1625
mm. 914.4 162.1 533.4 596.9 457.2 327.2 73.2 69.9 774.7 737
in. 20″ 38.75 7.00 23.00 25.25 20.00 14.00 16 3.12 3 32.75 2050
mm. 984.3 177.8 584.2 641.4 508.0 355.6 79.2 76.2 831.9 930
in. 24″ 46.00 8.00 27.25 30.00 24.00 16.00 16 3.62 3 1/2 39.00 3325
mm. 1168.4 203.2 692.2 762.0 609.6 406.4 91.9 88.9 990.6 1508

Weld neck flange dimensions class 2500

 
Nominal size
Outside diam. of flange
Thick. of flange
Diam. of raised face
Diam of hub at base
Diam. of hub at point of welding
Length thru hub
No. of holes
Diam. of holes
Diam. of bolts
Diam. of bolt circle
Approx. weight pounds Kg
 
O
C
R
X
A
Y
in.
1/2″
5.25
1.19
1.38
1.69
0.84
2.88
4
0.88
3/4
3.50
7
mm.
133.4
30.2
35.1
42.9
21.3
73.2
22.4
19.1
88.9
3
in.
3/4″
5.50
1.25
1.69
2.00
1.05
3.12
4
0.88
3/4
3.75
8
mm.
139.7
31.8
42.9
50.8
26.7
79.2
22.4
19.1
95.3
4
in.
1″
6.25
1.38
2.00
2.25
1.32
3.50
4
1.00
7/8
4.25
12
mm.
158.8
35.1
50.8
57.2
33.5
88.9
25.4
22.2
108.0
5
in.
1 1/4″
7.25
1.50
2.50
2.88
1.66
3.75
4
1.12
right
5.12
17
mm.
184.2
38.1
63.5
73.2
42.2
95.3
28.4
25.4
130.0
8
in.
1 1/2″
8.00
1.75
2.88
3.12
1.90
4.38
4
1.25
1 1/8
5.75
25
mm.
203.2
44.5
73.2
79.2
48.3
111.3
31.8
28.6
146.1
11
in.
2″
9.25
2.00
3.62
3.75
2.38
5.00
8
1.12
right
6.75
42
mm.
235.0
50.8
91.9
95.3
60.5
127.0
28.4
25.4
171.5
19
in.
2 1/2″
10.50
2.25
4.12
4.50
2.88
5.62
8
1.25
1 1/8
7.75
52
mm.
266.7
57.2
104.6
114.3
73.2
142.7
31.8
28.6
196.9
24
in.
3″
12.00
2.62
5.00
5.25
3.50
6.62
8
1.38
1 1/4
9.00
94
mm.
304.8
66.5
127.0
133.4
88.9
168.1
35.1
31.8
228.6
43
in.
4″
14.00
3.00
6.19
6.50
4.50
7.50
8
1.62
1 1/2
10.75
145
mm.
355.6
76.2
157.2
165.1
114.3
190.5
41.1
38.1
273.1
66
in.
5″
16.50
3.62
7.31
8.00
5.56
9.00
8
1.88
1 3/4
12.75
245
mm.
419.1
91.9
185.7
203.2
141.2
228.6
47.8
44.5
323.9
111
in.
6″
19.00
4.25
8.50
9.25
6.63
10.75
8
2.12
right
14.50
380
mm.
482.6
108.0
215.9
235.0
168.4
273.1
53.8
50.8
368.3
172
in.
8″
21.75
5.00
10.62
12.00
8.63
12.50
12
2.12
right
17.25
580
mm.
552.5
127.0
269.7
304.8
219.2
317.5
53.8
50.8
438.2
263
in.
10″
26.50
6.50
12.75
14.75
10.75
16.50
12
2.62
2 1/2
21.25
1075
mm.
673.1
165.1
323.9
374.7
273.1
419.1
66.5
63.5
539.8
488
in.
12″
30.00
7.25
15.00
17.38
12.75
18.25
12
2.88
2 3/4
24.38
1525
mm.
762.0
184.2
381.0
441.5
323.9
463.6
73.2
69.9
619.3
692

 

ANSI/ASME steel flanges

  • ANSI B16.47 Slip on flanges
  • ANSI B16.5 lap joint flanges
  • ANSI B16.47 steel weld neck flanges
  • ANSI B16.47 steel blind flanges, blind cover
  • ANSI B16.5 slip on flanges
  • ANSI B16.5 stainless steel blind flange
  • ANSI B16.5 long weld neck pipe flanges, LWN flange
  • API standard forged stainless steel thread flanges, SCRD flange
  • ANSI B16.5 stainless steel weld neck pipe flanges

EN/PED Steel Flanges

  • DIN2573, DIN2576 carbon steel plate flanges
  • DIN2527 Weld Neck flanges
  • DIN2573, DIN2576 plate flange, backing flange,gasket
  • EN1092-1 F304/F304L plate flange
  • DIN2634 steel weld neck flanges

 

BS Steel Flanges

JIS Steel Flanges

Flange Standard

Supplier of weld neck flange ansi b16.5, alloy 20 weld neck flange at best price

Ready stock of flat face weld neck flange, Carbon Steel Weld Neck Flange in any shape and size
Check weld neck raised face flange dimensions, weld neck flange price list

 

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