Brass flanges are pipe flanges that are made from brass, an alloy of copper and zinc, which offers several advantageous properties for such applications. Brass is chosen for its corrosion resistance, durability, and good thermal conductivity. This gives brass flanges a blend of the desirable properties of both copper and zinc. Brass flanges are a type of connecting component used in various piping and plumbing applications. Brass flanges are important parts used in piping systems to connect pipes, valves, and equipment while providing easy access for maintenance and inspection. Brass flanges weight and dimensions chart PDF gives information about the composition.
Some of the advantages of using brass flanges are corrosion resistance, ductility and good thermal conductivity than other metal products. Brass flanges are used in a large variety of applications, including oil and gas, chemical processing, marine, power generation, pulp and paper, food and beverage and pharmaceuticals.
Brass flanges specifications are accessible in numerous grades. Brass flanges are manufactured in accordance with a variety of standards, including ASTM A182, ASTM A815, ANSI/ASME B16.5, DIN 55014 and BS EN 1092-1, with pressure ratings from Class 150, 300, 600, 2500 and beyond. Brass flanges are available in a wide range of sizes to accommodate different pipe diameters and system requirements. Refer to weight and dimensions chart PDF given in mm and kg, for knowing more in details about flange sizes and specifications.
Nominal Pipe Size (inches) |
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---|---|---|---|---|---|
Diameter of Flange (inches) |
No. of Bolts |
Diameter of Bolts (inches) |
Diameter of Bolt Holes (inches) |
Bolt Circle (inches) |
|
1/4 | 3-3/8 | 4 | 1/2 | 0.62 | 2-1/4 |
1/2 | 3-1/2 | 4 | 1/2 | 0.62 | 2-3/8 |
3/4 | 3-7/8 | 4 | 1/2 | 0.62 | 2-3/4 |
1 | 4-1/4 | 4 | 1/2 | 0.62 | 3-1/8 |
1-1/4 | 4-5/8 | 4 | 1/2 | 0.62 | 3-1/2 |
1-1/2 | 5 | 4 | 1/2 | 0.62 | 3-7/8 |
2 | 6 | 4 | 5/8 | 0.75 | 4-3/4 |
2-1/2 | 7 | 4 | 5/8 | 0.75 | 5-1/2 |
3 | 7-1/2 | 4 | 5/8 | 0.75 | 6 |
3-1/2 | 8-1/2 | 8 | 5/8 | 0.75 | 7 |
4 | 9 | 8 | 5/8 | 0.75 | 7-1/2 |
5 | 10 | 8 | 3/4 | 0.88 | 8-1/2 |
6 | 11 | 8 | 3/4 | 0.88 | 9-1/2 |
8 | 13-1/2 | 8 | 3/4 | 0.88 | 11-3/4 |
10 | 16 | 12 | 7/8 | 1 | 14-1/4 |
12 | 19 | 12 | 7/8 | 1 | 17 |
14 | 21 | 12 | 1 | 1.12 | 18-3/4 |
16 | 23-1/2 | 16 | 1 | 1.12 | 21-1/4 |
18 | 25 | 16 | 1-1/8 | 1.25 | 22-3/4 |
20 | 27-1/2 | 20 | 1-1/8 | 1.25 | 25 |
24 | 32 | 20 | 1-1/4 | 1.38 | 29-1/2 |
Nominal Pipe Size NPS (inches) |
|||||
---|---|---|---|---|---|
Diameter of Flange (inches) |
No. of Bolts |
Diameter of Bolts (inches) |
Diameter of Bolt Holes (inches) |
Bolt Circle (inches) |
|
1/4 | 3-3/8 | 4 | 1/2 | 0.62 | 2-1/4 |
1/2 | 3-3/4 | 4 | 1/2 | 0.62 | 2-5/8 |
3/4 | 4-5/8 | 4 | 5/8 | 0.75 | 3-1/4 |
1 | 4-7/8 | 4 | 5/8 | 0.75 | 3-1/2 |
1-1/4 | 5-1/4 | 4 | 5/8 | 0.75 | 3-7/8 |
1-1/2 | 6-1/8 | 4 | 3/4 | 0.88 | 4-1/2 |
2 | 6-1/2 | 8 | 5/8 | 0.75 | 5 |
2-1/2 | 7-1/2 | 8 | 3/4 | 0.88 | 5-7/8 |
3 | 8-1/4 | 8 | 3/4 | 0.88 | 6-5/8 |
3-1/2 | 9 | 8 | 3/4 | 0.88 | 7-1/4 |
4 | 10 | 8 | 3/4 | 0.88 | 7-7/8 |
5 | 11 | 8 | 3/4 | 0.88 | 9-1/4 |
6 | 12-1/2 | 12 | 3/4 | 0.88 | 10-5/8 |
8 | 15 | 12 | 7/8 | 1 | 13 |
10 | 17-1/2 | 16 | 1 | 1.12 | 15-1/4 |
12 | 20-1/2 | 16 | 1-1/8 | 1.25 | 17-3/4 |
14 | 23 | 20 | 1-1/8 | 1.25 | 20-1/4 |
16 | 25-1/2 | 20 | 1-1/4 | 1.38 | 22-1/2 |
18 | 28 | 24 | 1-1/4 | 1.38 | 24-3/4 |
20 | 30-1/2 | 24 | 1-1/4 | 1.38 | 27 |
24 | 36 | 24 | 1-1/2 | 1.62 | 32 |
Nominal Pipe Size NPS (inches) |
|||||
---|---|---|---|---|---|
Diameter of Flange (inches) |
No. of Bolts |
Diameter of Bolts (inches) |
Diameter of Bolt Holes (inches) |
Bolt Circle (inches) |
|
1/4 | 3-3/8 | 4 | 1/2 | 0.62 | 2-1/4 |
1/2 | 3-3/4 | 4 | 1/2 | 0.62 | 2-5/8 |
3/4 | 4-5/8 | 4 | 5/8 | 0.75 | 3-1/4 |
1 | 4-7/8 | 4 | 5/8 | 0.75 | 3-1/2 |
1-1/4 | 5-1/4 | 4 | 5/8 | 0.75 | 3-7/8 |
1-1/2 | 6-1/8 | 4 | 3/4 | 0.88 | 4-1/2 |
2 | 6-1/2 | 8 | 5/8 | 0.75 | 5 |
2-1/2 | 7-1/2 | 8 | 3/4 | 0.88 | 5-7/8 |
3 | 8-1/4 | 8 | 3/4 | 0.88 | 6-5/8 |
3-1/2 | 9 | 8 | 7/8 | 1 | 7-1/4 |
4 | 10 | 8 | 7/8 | 1 | 7-7/8 |
5 | 11 | 8 | 7/8 | 1 | 9-1/4 |
6 | 12-1/2 | 12 | 7/8 | 1 | 10-5/8 |
8 | 15 | 12 | 1 | 1.12 | 13 |
10 | 17-1/2 | 16 | 1-1/8 | 1.25 | 15-1/4 |
12 | 20-1/2 | 16 | 1-1/4 | 1.38 | 17-3/4 |
14 | 23 | 20 | 1-1/4 | 1.38 | 20-1/4 |
16 | 25-1/2 | 20 | 1-3/8 | 1.5 | 22-1/2 |
18 | 28 | 24 | 1-3/8 | 1.5 | 24-3/4 |
20 | 30-1/2 | 24 | 1-1/2 | 1.62 | 27 |
24 | 36 | 24 | 1-3/4 | 1.88 | 32 |
Nominal Pipe Size NPS (inches) |
|||||
---|---|---|---|---|---|
Diameter of Flange (inches) |
No. of Bolts |
Diameter of Bolts (inches) |
Diameter of Bolt Holes (inches) |
Bolt Circle (inches) |
|
1/4 | 3-3/8 | 4 | 1/2 | 0.62 | 2-1/4 |
1/2 | 3-3/4 | 4 | 1/2 | 0.62 | 2-5/8 |
3/4 | 4-5/8 | 4 | 5/8 | 0.75 | 3-1/4 |
1 | 4-7/8 | 4 | 5/8 | 0.75 | 3-1/2 |
1-1/4 | 5-1/4 | 4 | 5/8 | 0.75 | 3-7/8 |
1-1/2 | 6-1/8 | 4 | 3/4 | 0.88 | 4-1/2 |
2 | 6-1/2 | 8 | 5/8 | 0.75 | 5 |
2-1/2 | 7-1/2 | 8 | 3/4 | 0.88 | 5-7/8 |
3 | 8-1/4 | 8 | 3/4 | 0.88 | 6-5/8 |
3-1/2 | 9 | 8 | 7/8 | 1 | 7-1/4 |
4 | 10-3/4 | 8 | 7/8 | 1 | 8-1/2 |
5 | 13 | 8 | 1 | 1.12 | 10-1/2 |
6 | 14 | 12 | 1 | 1.12 | 11-1/2 |
8 | 16-1/2 | 12 | 1-1/8 | 1.25 | 13-3/4 |
10 | 20 | 16 | 1-1/4 | 1.38 | 17 |
12 | 22 | 20 | 1-1/4 | 1.38 | 19-1/4 |
14 | 23-3/4 | 20 | 1-3/8 | 1.5 | 20-3/4 |
16 | 27 | 20 | 1-1/2 | 1.62 | 23-3/4 |
18 | 29-1/4 | 20 | 1-5/8 | 1.75 | 25-3/4 |
20 | 32 | 24 | 1-5/8 | 1.75 | 28-1/2 |
24 | 37 | 24 | 1-7/8 | 2 | 33 |
Nominal Pipe Size NPS (inches) |
|||||
---|---|---|---|---|---|
Diameter of Flange (inches) |
No. of Bolts |
Diameter of Bolts (inches) |
Diameter of Bolt Holes (inches) |
Bolt Circle (inches) |
|
1/2 | 4-3/4 | 4 | 3/4 | 0.88 | 3-1/4 |
3/4 | 5-1/8 | 4 | 3/4 | 0.88 | 3-1/2 |
1 | 5-7/8 | 4 | 7/8 | 1 | 4 |
1-1/4 | 6-1/4 | 4 | 7/8 | 1 | 4-3/8 |
1-1/2 | 7 | 4 | 1 | 1.12 | 4-7/8 |
2 | 8-1/2 | 8 | 7/8 | 1 | 6-1/2 |
2-1/2 | 9-5/8 | 8 | 1 | 1.12 | 7-1/2 |
3 | 9-1/2 | 8 | 7/8 | 1 | 7-1/2 |
4 | 11-1/2 | 8 | 1-1/8 | 1.25 | 9-1/4 |
5 | 13-3/4 | 8 | 1-1/4 | 1.38 | 11 |
6 | 15 | 12 | 1-1/8 | 1.25 | 12-1/2 |
8 | 18-1/2 | 12 | 1-3/8 | 1.5 | 15-1/2 |
10 | 21-1/2 | 16 | 1-3/8 | 1.5 | 18-1/2 |
12 | 24 | 20 | 1-3/8 | 1.5 | 21 |
14 | 25-1/4 | 20 | 1-1/2 | 1.62 | 22 |
16 | 27-3/4 | 20 | 1-5/8 | 1.75 | 24-1/2 |
18 | 31 | 20 | 1-7/8 | 2 | 27 |
20 | 33-3/4 | 20 | 2 | 2.12 | 29-1/2 |
24 | 41 | 20 | 2-1/2 | 2.62 | 35-1/2 |
Nominal Pipe Size NPS (inches) |
|||||
---|---|---|---|---|---|
Diameter of Flange (inches) |
No. of Bolts |
Diameter of Bolts (inches) |
Diameter of Bolt Holes (inches) |
Bolt Circle (inches) |
|
1/2 | 5-1/4 | 4 | 3/4 | 0.88 | 3-1/2 |
3/4 | 5-1/2 | 4 | 3/4 | 0.88 | 3-3/4 |
1 | 6-1/4 | 4 | 7/8 | 1 | 4-1/4 |
1-1/4 | 7-1/4 | 4 | 1 | 1.12 | 5-1/8 |
1-1/2 | 8 | 4 | 1-1/8 | 1.25 | 5-3/4 |
2 | 9-1/4 | 8 | 1 | 1.12 | 6-3/4 |
2-1/2 | 10-1/2 | 8 | 1-1/8 | 1.25 | 7-3/4 |
3 | 12 | 8 | 1-1/4 | 1.38 | 9 |
4 | 14 | 8 | 1-1/2 | 1.62 | 10-3/4 |
5 | 16-1/2 | 8 | 1-3/4 | 1.88 | 12-3/4 |
6 | 19 | 8 | 2 | 2.12 | 14-1/2 |
8 | 21-3/4 | 12 | 2 | 2.12 | 17-1/4 |
10 | 26-1/2 | 12 | 2-1/2 | 2.62 | 21-1/4 |
12 | 30 | 12 | 2-3/4 | 2.88 | 24-3/8 |