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Flanges
Technical Info
Stainless Steel Pipes/Plates
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Plates - Carbon Steel / Alloy Steel
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Flanges
Non Ferrous Metals
Selection of Material
Formula of Weight
150# DIM & Weight
300# DIM & Weight
600# DIM & Weight
900# DIM & Weight
1500# DIM & Weight
2500# DIM & Weight
FORGED FLANGES 150# DIMENSION AS PER ANSI B 16.5
Dimensions for Class 150 Flanges
Pipe Size (inches)
O
Q
R
X
No. of Holes
Dia. of Bolt Holes
Bolt Circle Dia
YY
H
J
Y
B
R
YY
BB
Z
1/2
88.9
11.2
35.1
30.2
4
15.7
60.5
47.8
21.3
15.7
15.7
22.4
3.0
15.7
22.9
9.7
3/4
98.6
12.7
42.9
38.1
4
15.7
69.9
52.3
26.7
20.8
15.7
27.7
3.0
15.7
28.2
11.2
1
108.0
14.2
50.8
49.3
4
15.7
79.2
55.6
33.5
26.7
17.5
34.5
3.0
17.5
35.1
12.7
1 1/4
117.3
15.7
63.5
58.7
4
15.7
88.9
57.2
42.2
35.1
20.6
43.2
4.8
20.6
43.7
14.2
1 1/2
127.0
17.3
73.2
65.0
4
15.7
98.6
62.0
48.3
40.9
22.4
49.5
6.4
22.4
50.0
15.7
2
152.4
19.1
91.9
77.7
4
19.1
120.7
63.5
60.5
52.6
25.4
62.0
7.9
25.4
62.5
17.5
21/2
177.8
22.4
104.6
90.4
4
19.1
139.7
69.9
73.2
62.7
28.4
74.7
7.9
28.4
75.4
19.1
3
190.5
23.9
127.0
108.0
4
19.1
152.4
69.9
88.9
78.0
30.2
90.7
9.7
30.2
91.4
20.6
31/2
215.9
23.9
139.7
122.2
8
19.1
177.8
71.4
101.6
90.2
31.8
1033.8
9.7
31.8
104.1
4
228.6
23.9
157.2
134.9
8
19.1
190.5
76.2
114.3
102.4
33.3
116.1
11.2
33.3
116.8
5
254.0
23.9
185.7
163.6
8
22.4
215.9
88.9
141.2
128.3
36.6
143.8
11.2
36.6
144.5
6
279.4
25.4
215.9
192.0
8
22.4
241.3
88.9
168.4
154.2
39.6
170.7
12.7
39.6
171.5
8
342.9
28.4
269.7
246.1
8
22.4
298.5
101.6
219.2
202.7
44.5
221.5
12.7
44.5
222.3
10
406.4
30.2
323.9
304.8
12
25.4
362.0
101.6
273.1
254.5
49.3
276.4
12.7
49.3
277.4
12
482.6
31.8
381.0
365.3
12
25.4
431.8
114.3
323.9
304.8
55.6
327.2
12.7
55.6
328.2
14
533.4
35.1
412.8
400.1
12
28.4
476.3
127.0
355.6
To Be Specified by the Purchaser
57.2
359.2
12.7
79.2
360.2
16
596.9
36.6
469.9
457.2
16
28.4
539.8
127.0
406.4
63.5
410.5
12.7
87.4
411.2
18
635.0
39.6
533.4
505.0
16
31.8
577.9
139.7
457.2
68.3
461.8
12.7
96.8
462.3
20
698.5
42.9
584.2
558.8
20
31.8
635.0
144.5
508.0
73.2
513.1
12.7
103.1
514.4
24
812.8
47.8
692.2
663.4
20
35.1
749.3
152.4
609.6
82.6
616.0
12.7
111.3
616.0
