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Blind flange
ANSI B 16.5 FORGED FLANGES     1000LBS UNIT:MM
 
Nominal Pipe
Size
Outside Diam
Diam at
Base of
Hub
O.D.of Raised face
Thick- ness
BORE
LENGTH THRU HUB
Diam.
of Hub
of Bevel
Radius
of Fillet
Threaded Length
Welding
Neck
Socket
Welding
Slip-on
Socket
Welding
Lop
Joint
Counter
Bore
Min.Threaded Min.
Welding Neck

Slip-on Threaded Socket
Welding

Lap
Joint
D
X
G
f
B1
B2
B3
B
T1
T2
T3
A
R
Q
1/2
3/4
1
95
117
124
38.1
47.8
53.8
35.1
42.9
50.8
14.2
15.7
17.5
 
22.4
27.7
34.5
22.9
28.2
35.1
23.6
29.0
35.8
52.3
57.2
62.0
22.4
25.4
26.9
22.4
25.4
26.9
21.3
26.7
33.5
3.0
3.0
3.0
15.7
15.7
17.5
1/4
1/2
2
133
155
165
63.5
69.9
84.1
63.5
73.2
91.9
20.6
22.4
25.4
43.2
49.5
62.0
43.7
50.0
62.5
44.5
50.5
63.5
66.5
69.9
73.2
28.4
31.8
36.6
28.4
31.8
36.6
42.2
48.3
60.5
4.8
6.4
7.9
20.6
22.4
28.4
2/2
3
3/2
191
210
229
100.1
117.3
133.4
104.6
127.0
139.7
28.4
31.8
35.1
74.7
90.7
103.4
75.4
91.4
104.1
76.2
92.2
104.9
79.2
82.6
85.9
41.1
46.0
49.3
41.1
46.0
49.3
73.2
88.9
101.6
7.9
9.7
9.7
31.8
35.1
39.6
4
5
6
273
330
356
152.4
189.0
222.3
157.2
185.7
215.9
38.1
44.5
47.8
116.1
143.8
170.7
116.8
144.5
171.5
117.6
144.5
171.5
101.6
114.3
117.3
53.8
60.5
66.6
53.8
60.5
66.5
114.3
141.2
168.4
11.2
11.2
12.7
41.1
47.8
50.8
8
10
12
419
508
559
273.1
342.9
400.1
269.7
323.9
381.0
55.6
63.5
66.45
221.5
276.4
327.2
222.3
277.4
328.2
222.3
276.4
328.7
133.4
152.4
155.4
76.2
85.9
91.9
76.2
111.3
117.3
219.2
273.1
323.9
12.7
12.7
12.7
57.2
65.0
69.9
14
16
18
603
686
743
431.8
495.3
546.1
412.8
469.9
533.4
69.9
76.2
82.6
359.2
410.5
461.8
360.2
411.2
462.3
360.4
411.2
462.0
165.1
177.8
184.2
93.7
106.4
117.3
127.0
139.7
152.4
355.6
406.4
457.2
12.7
12.7
12.7
73.2
77.7
79.2
20
24
813
940
609.6
717.6
584.2
692.2
88.9
101.6
513.1
616.0
514.4
616.0
512.8
614.4
190.5
203.2
127.0
139.7
165.1
184.2
508.0
609.6
12.71
2.7
82.6
91.9

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