150Lbs  
Blind Flanges
ANSI B16.9 ; Dimensions in Inches
 
300Lbs 400Lbs 600Lbs  
900Lbs1500Lbs2500Lbs  
 
Nominal
Pipe Size
(O.D.)
Thickness
Dia of
RF
Dia of
Bolt Circle
No. of
Bolt
Dia of
Bolt Hole
(O)
(C)
(R)
(HD)
(H)
1/2
3-1/2
7/16
1-3/16
2-3/8
4
5/8
3/4
3-7/8
1/2
1-1/2
2-3/4
4
5/8
1
4-1/4
9/16
1-15/16
3-1/8
4
5/8
1-1/4
4-5/8
5/8
2-5/16
3-1/2
4
5/8
1-1/2
5
11/16
2-9/16
3-7/8
4
5/8
2
6
3/4
3-1/16
4-3/4
4
3/4
2-1/2
7
7/8
3-9/16
5-1/2
4
3/4
3
7-1/2
15/16
4-1/4
6
4
3/4
3-1/2
8-1/2
15/16
4-13/16
7
8
3/4
4
9
15/16
5-5/16
7-1/2
8
3/4
5
10
15/16
6-7/16
8-1/2
8
7/8
6
11
1
7-9/16
9-1/2
8
7/8
8
13-1/2
1-1/8
9-11/16
11-3/4
8
7/8
10
16
1-3/16
12
14-1/4
12
1
12
19
1-1/4
12-3/8
17
12
1
14
21
1-3/8
15-3/4
18-3/4
12
1-1/8
16
23-1/2
1-716
18
21-1/4
16
1-1/8
18
25
1-9/16
19-7/8
22-3/4
16
1-1/4
20
27-1/2
1-11/16
22
25
20
1-1/4
24
32
1-7/8
16-1/8
29-1/2
20
1-3/8

 <   <   <   bottom of Blind Flanges - 150  Lbs >   >   >

 

 

300Lbs  
Blind Flanges
ANSI B16.9 ; Dimensions in Inches
 
150Lbs400Lbs600Lbs  
900Lbs1500Lbs2500Lbs  
 
Nominal
Pipe Size
(O.D.)
Thickness
Dia of
RF
Dia of
Bolt Circle
No. of
Dia of
Bolt Hole
(O)
(C)
(R)
(HD)
(H)
1/2
3-3/4
9/16
1-1/2
2-5/8
4
5/8
3/4
4-5/8
5/8
1-7/8
3-1/4
4
3/4
1
4-7/8
11/16
2-1/8
3-1/2
4
3/4
1-1/4
5-1/4
3/4
2-1/2
3-7/8
4
3/4
1-1/2
6-1/8
13/16
2-3/4
4-1/2
4
7/8
2
6-1/2
7/8
3-5/16
5
8
3/4
2-1/2
7-1/2
1
3-15/16
5-7/8
8
7/8
3
8-1/4
1-1/8
4-5/8
6-5/8
8
7/8
3-1/2
9
1-3/16
5-1/2
7-1/4
8
7/8
4
10
1-1/4
5-3/4
7-7/8
8
7/8
5
11
1-3/8
7
9-1/4
8
7/8
6
12-1/2
1-7/16
8-1/8
10-5/8
12
7/8
8
15
1-5/8
10-1/4
13
12
1
10
17-1/2
1-7/8
12-5/8
15-1/4
16
1-1/8
12
20-1/2
2
14-3/4
17-3/4
16
1-1/4
14
23
2-1/8
16-3/4
20-1/4
20
1-1/4
16
25-1/2
2-1/4
19
22-1/2
20
1-3/8
18
28
2-3/8
21
24-3/4
24
1-3/8
20
30-1/2
2-1/2
23-1/8
27
24
1-3/8
24
36
2-3/4
27-5/8
32
24
1-3/8

 <   <   <   bottom of Blind Flanges - 300  Lbs >   >   >

 

 

 

400Lbs  
Blind Flanges
ANSI B16.9 ; Dimensions in Inches
 
150Lbs300Lbs 600Lbs  
900Lbs1500Lbs 2500Lbs  
 
Nominal
Pipe Size
(O.D.)
Thickness
Dia of
RF
Dia of
Bolt Circle
No. of
Bolt
Dia of
Bolt Hole
(O)
(C)
(R)
(HD)
(H)
1/2
3-3/4
9/16
1-1/2
2-5/8
4
5/8
3/4
4-5/8
5/8
1-7/8
3-1/4
4
3/4
1
4-7/8
11/16
2-1/8
3-1/2
4
3/4
1-1/4
5-1/4
13/16
2-1/2
3-7/8
4
3/4
1-1/2
6-1/8
7/8
2-3/4
4-1/2
4
7/8
2
6-1/2
1
3-5/16
5
8
3/4
2-1/2
7-1/2
1-1/8
3-15/16
5-7/8
8
7/8
3
8-1/4
1-1/4
4-5/8
6-5/8
8
7/8
3-1/2
9
1-3/8
5-1/4
7-1/4
8
1
4
10
1-3/8
5-3/4
7-7/8
8
1
5
11
1-1/2
7
9-1/4
8
1
6
12-1/2
1-5/8
8-1/8
10-5/8
12
1
8
15
1-7/8
10-1/4
13
12
1-1/8
10
17-1/2
2-1/8
12-5/8
15-1/4
16
1-1/4
12
20-1/2
2-1/4
14-3/4
17-3/4
16
1-3/8
14
23
2-3/8
16-3/4
20-1/4
20
1-3/8
16
25-1/2
2-1/2
19
22-1/2
20
1-1/2
18
28
2-5/8
21
24-3/4
24
1-1/2
20
30-1/2
2-3/4
23-1/8
27
24
1-5/8
24
36
3
27-5/8
32
24
1-7/8

 <   <   <   bottom of Blind Flanges - 400  Lbs >   >   >

 

 

 

600Lbs  
Blind Flanges
ANSI B16.9 ; Dimensions in Inches
 
150Lbs300Lbs400Lbs  
900Lbs1500Lb2500Lbs  
 
Nominal
Pipe Size
(O.D.)
Thickness
Dia of
RF
Dia of
Bolt Circle
No. of
Bolt
Dia of
Bolt Hole
(O)
(C)
(R)
(HD)
(H)
1/2
3-3/4
9/16
1-1/2
2-5/8
4
5/8
3/4
4-5/8
5/8
1-7/8
3-1/4
4
3/4
1
4-7/8
11/16
2-1/8
3-1/2
4
3/4
1-1/4
5-1/4
13/16
2-1/2
3-7/8
4
3/4
1-1/2
6-1/8
7/8
2-3/4
4-1/2
4
7/8
2
6-1/2
1
3-5/16
5
8
3/4
2-1/2
7-1/2
1-1/8
3-15/16
5-7/8
8
7/8
3
8-1/4
1-1/4
4-5/8
6-5/8
8
7/8
3-1/2
9
1-3/8
5-1/4
7-1/4
8
1
4
10-3/4
1-1/2
6
8-1/2
8
1
5
13
1-3/4
7-1/16
10-1/2
8
1-1/8
6
14
1-7/8
8-3/4
11-1/2
12
1-1/8
8
16-1/2
2-3/16
10-3/4
13-3/4
12
1-1/4
10
20
2-1/2
13-1/2
17
16
1-3/8
12
22
2-5/8
15-3/4
19-1/4
20
1-3/8
14
23-3/4
2-3/4
17
20-3/4
20
1-1/2
16
27
3
19-1/2
23-3/4
20
1-5/8
18
29-1/4
3-1/4
21-1/2
25-3/4
20
1-3/4
20
32
3-1/2
24
28-1/2
24
1-3/4
24
37
4
28-1/4
33
24
2

 <   <   <   bottom of Blind Flanges - 600  Lbs >   >   >

 

 

900Lbs  
Blind Flanges
ANSI B16.9 ; Dimensions in Inches
 
150Lbs300Lbs400Lbs  
600Lbs1500Lbs2500Lbs  
 
Nominal
Pipe Size
(O.D.)
Thickness
Dia of
RF
Dia of
Bolt Circle
No. of
Bolt
Dia of
Bolt Hole
(O)
(C)
(R)
(HD)
(H)
1/2
4-3/4
7/8
1-1/2
3-1/4
4
7/8
3/4
5-1/8
1
1-3/4
3-1/2
4
7/8
1
5-7/8
1-1/8
2-1/16
4
4
1
1-1/4
6-1/4
1-1/8
2-1/2
4-3/8
4
1
1-1/2
7
1-1/4
2-3/4
4-7/8
4
1-1/8
2
8-1/2
1-1/2
4-1/8
6-1/2
8
1
2-1/2
9-5/8
1-5/8
4-7/8
7-1/2
8
1-1/8
3
9-1/2
1-1/2
5
7-1/2
8
1
3-1/2
-
-
-
-
-
-
4
11-1/2
1-3/4
6-1/4
9-1/4
8
1-1/4
5
13-3/4
2
7-1/2
11
8
1-3/8
6
15
2-3/16
9-1/4
12-1/2
12
1-1/4
8
18-1/2
2-1/2
11-3/4
15-1/2
12
1-1/2
10
21-1/2
2-3/4
14-1/2
18-1/2
16
1-1/2
12
24
3-1/8
16-1/2
21
20
1-1/2
14
25-1/4
3-3/8
17-3/4
22
20
1-5/8
16
27-3/4
3-1/2
20
24-1/4
20
1-3/4
18
31
4
22-1/4
27
20
2
20
33-3/4
4-1/4
24-1/2
29-1/2
20
2-1/8
24
41
5-1/2
29-1/2
35-1/2
20
2-5/8

 <   <   <   bottom of Blind Flanges - 900  Lbs >   >   >

 

 

 

1500Lbs  
Blind Flanges
ANSI B16.9 ; Dimensions in Inches
 
150Lbs300Lbs 400Lbs  
600Lbs 900Lbs 2500Lbs  
 
Nominal
Pipe Size
(O.D.)
Thickness
Dia of
RF
Dia of
Bolt Circle
No. of
Bolt
Dia of
Bolt Hole
(O)
(C)
(R)
(HD)
(H)
1/2
1-1/2
7/8
1-1/2
3-1/4
4
7/8
3/4
1-3/4
1
1-3/4
3-1/2
4
7/8
1
2-1/16
1-1/8
2-1/16
4
4
1
1-1/4
2-1/2
1-1/8
2-1/2
4-3/8
4
1
1-1/2
2-3/4
1-1/4
2-3/4
4-7/8
4
1-1/8
2
4-1/8
1-1/2
4-1/8
6-1/2
8
1
2-1/2
4-7/8
1-5/8
4-7/8
7-1/2
8
1-1/8
3
5
1-7/8
5-1/4
8
8
1-1/4
3-1/2
-
-
-
-
-
-
4
6-1/4
2-1/8
6-3/8
9-1/2
8
1-3/8
5
7-1/2
2-7/8
7-3/4
11-1/2
8
1-5/8
6
9-1/4
3-1/4
9
12-1/2
12
1-1/2
8
11-3/4
3-5/8
11-1/2
15-1/2
12
1-3/4
10
14-1/2
4-1/4
14-1/2
19
12
2
12
16-1/2
4-7/8
17-3/4
22-1/2
16
2-1/8
14
17-3/4
5-1/4
19-1/2
25
16
2-3/8
16
20
5-3/4
21-3/4
27-3/4
16
2-5/8
18
22-1/4
6-3/8
23-1/2
30-1/2
16
2-7/8
20
24-1/2
7
25-1/4
32-3/4
16
3-1/8
24
29-1/2
8
30
39
16
3-5/8

 <   <   <   bottom of Blind Flanges - 1500  Lbs >   >   >

 

 

 

2500Lbs  
Blind Flanges
ANSI B16.9 ; Dimensions in Inches
 
150Lbs300Lbs400Lbs  
600Lbs 900Lbs1500Lbs  
 
Nominal
Pipe Size
(O.D.)
Thickness
Dia of
RF
Dia of
Bolt Circle
No. of
Bolt
Dia of
Bolt Hole
(O)
(C)
(R)
(HD)
(H)
1/2
5-1/4
1-3/16
1-11/16
3-1/2
4
7/8
3/4
5-1/2
1-1/4
2
3-3/4
4
7/8
1
6-1/4
1-3/8
2-1/4
4-1/4
4
1
1-1/4
7-1/4
1-1/2
2-7/8
5-1/8
4
1-1/8
1-1/2
8
1-3/4
3-1/8
5-3/4
4
1-1/4
2
9-1/4
2
3-3/4
6-3/4
8
1-1/8
2-1/2
10-1/2
2-1/4
4-1/2
7-3/4
8
1-1/4
3
12
2-5/8
5-1/4
9
8
1-3/8
3-1/2
-
-
-
-
-
-
4
14
3
6-1/2
10-3/4
8
1-5/8
5
16-1/2
3-5/8
8
12-3/4
8
1-7/8
6
19
4-1/4
9-1/4
14-1/2
8
2-1/8
8
21-3/4
5
12
17-1/4
12
2-1/8
10
26-1/2
6-1/2
14-3/4
21-1/4
12
2-5/8
12
30
7-1/4
17-3/8
24-3/8
12
2-7/8

 <   <   <   bottom of Blind Flanges - 2500  Lbs >   >   >