Carbon steel pipe flanges
Excellent resistance to fluid leakage, high strength, and good corrosion
resistance with easy handling. Designed for straightforward disassembly and assembly.
- Applications
- Petrochemical and power plants, among others.
Carbon Steel Pipe Flange FF (flat face)
Sizes / Nominal diameter
| A |
15 |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
90 |
100 |
125 |
| B |
1/2 |
3/4 |
1 |
1¼ |
1½ |
2 |
2½ |
3 |
3½ |
4 |
5 |
| A |
150 |
200 |
250 |
300 |
350 |
400 |
450 |
500 |
550 |
600 |
|
| B |
6 |
8 |
10 |
12 |
14 |
16 |
18 |
20 |
22 |
24 |
|
(A = metric nominal size, B = nominal pipe size in inches)
Carbon Steel Pipe Flange PLLJ
Sizes / Nominal diameter
| A |
15 |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
90 |
100 |
125 |
| B |
1/2 |
3/4 |
1 |
1¼ |
1½ |
2 |
2½ |
3 |
3½ |
4 |
5 |
| A |
150 |
200 |
250 |
300 |
350 |
400 |
450 |
500 |
550 |
600 |
|
| B |
6 |
8 |
10 |
12 |
14 |
16 |
18 |
20 |
22 |
24 |
|
Rating (JIS)
*Some items are available by special order.
Carbon Steel Pipe Flange BF (blind flange)
Sizes / Nominal diameter
| A |
15 |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
90 |
100 |
125 |
| B |
1/2 |
3/4 |
1 |
1¼ |
1½ |
2 |
2½ |
3 |
3½ |
4 |
5 |
| A |
150 |
200 |
250 |
300 |
350 |
400 |
450 |
500 |
550 |
600 |
|
| B |
6 |
8 |
10 |
12 |
14 |
16 |
18 |
20 |
22 |
24 |
|
(A = metric nominal size, B = nominal pipe size in inches)
Carbon Steel Pipe Flange RF (raised face)
Sizes / Nominal diameter
| A |
15 |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
90 |
100 |
125 |
| B |
1/2 |
3/4 |
1 |
1¼ |
1½ |
2 |
2½ |
3 |
3½ |
4 |
5 |
| A |
150 |
200 |
250 |
300 |
350 |
400 |
450 |
500 |
550 |
600 |
|
| B |
6 |
8 |
10 |
12 |
14 |
16 |
18 |
20 |
22 |
24 |
|
(A = metric nominal size, B = nominal pipe size in inches)
Rating (JIS)
*For 20K rating, sizes are available up to 300A.
*Some items are available by special order.
Carbon Steel Pipe Flange BDRF (blind, raised face)
Sizes / Nominal diameter
| A |
10 |
15 |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
| B |
3/8 |
1/2 |
3/4 |
1 |
1¼ |
1½ |
2 |
2½ |
3 |
4 |
5 |
| A |
150 |
200 |
250 |
300 |
350 |
400 |
450 |
500 |
550 |
600 |
|
| B |
6 |
8 |
10 |
12 |
14 |
16 |
18 |
20 |
22 |
24 |
|
(A = metric nominal size, B = nominal pipe size in inches)
Rating (JIS)
*For 20K rating, sizes are available up to 300A.
*Some items are available by special order.
*We also stock items and sizes not listed here. Please feel free to contact us.
