Description
Product Description ANSI/ASME B 16.5 Socket Weld Flange
ANSI/ASME B16.5 Socket Weld Flange is a high-performance flange designed for small-diameter, high-pressure piping systems. It features a socket at its bore where the pipe is inserted before being welded in place, ensuring a secure and leak-proof connection. This flange is widely used in industries such as petrochemical, oil and gas, power generation, and water treatment.
ANSI/ASME B 16.5 Socket Weld Flange Dimension
Class 150 Socket Neck Flange Dimensions
| Size in Inch | Size in mm | Outer Dia. | Flange Thick. | Hub OD | Flange Length | RF Dia. | RF Height | Socket Depth | PCD | Socket Bore | No of Bolts | Bolt Size UNC | Machine Bolt Length | RF Stud Length | Hole Size | ISO Stud Size | Weight in kg |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | B | C | D | E | F | G | H | J | |||||||||
| 1/2 | 15 | 90 | 9.6 | 30 | 14 | 34.9 | 2 | 10 | 60.3 | 22.2 | 4 | 1/2 | 50 | 55 | 5/8 | M14 | 0.8 |
| 3/4 | 20 | 100 | 11.2 | 38 | 14 | 42.9 | 2 | 11 | 69.9 | 27.7 | 4 | 1/2 | 50 | 65 | 5/8 | M14 | 0.9 |
| 1 | 25 | 110 | 12.7 | 49 | 16 | 50.8 | 2 | 13 | 79.4 | 34.5 | 4 | 1/2 | 55 | 65 | 5/8 | M14 | 0.9 |
| 1 1/4 | 32 | 115 | 14.3 | 59 | 19 | 63.5 | 2 | 14 | 88.9 | 43.2 | 4 | 1/2 | 55 | 70 | 5/8 | M14 | 1.4 |
| 1 1/2 | 40 | 125 | 15.9 | 65 | 21 | 73 | 2 | 16 | 98.4 | 49.5 | 4 | 1/2 | 65 | 70 | 5/8 | M14 | 1.4 |
| 2 | 50 | 150 | 17.5 | 78 | 24 | 92.1 | 2 | 17 | 120.7 | 61.9 | 4 | 5/8 | 70 | 85 | 3/4 | M16 | 2.3 |
| 2 1/2 | 65 | 180 | 20.7 | 90 | 27 | 105 | 2 | 19 | 139.7 | 74.6 | 4 | 5/8 | 75 | 90 | 3/4 | M16 | 3.2 |
| 3 | 80 | 190 | 22.3 | 108 | 29 | 127 | 2 | 21 | 152.4 | 90.7 | 4 | 5/8 | 75 | 90 | 3/4 | M16 | 3.7 |
Class 300 Socket Neck Flange Dimensions
| Size in Inch | Size in mm | Outer Dia. | Flange Thick. | Hub OD | Flange Length | RF Dia. | RF Height | Socket Depth | PCD | Socket Bore | No of Bolts | Bolt Size UNC | Machine Bolt Length | RF Stud Length | Hole Size | ISO Stud Size | Weight in kg |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | B | C | D | E | F | G | H | J | |||||||||
| 1/2 | 15 | 95 | 12.7 | 38 | 21 | 34.9 | 2 | 10 | 66.7 | 22.2 | 4 | 1/2 | 55 | 65 | 5/8 | M14 | 1.2 |
| 3/4 | 20 | 115 | 14.3 | 48 | 24 | 42.9 | 2 | 11 | 82.6 | 27.7 | 4 | 5/8 | 65 | 75 | 3/4 | M16 | 1.4 |
| 1 | 25 | 125 | 15.9 | 54 | 25 | 50.8 | 2 | 13 | 88.9 | 34.5 | 4 | 5/8 | 65 | 75 | 3/4 | M16 | 1.4 |
| 1 1/4 | 32 | 135 | 17.5 | 64 | 25 | 63.5 | 2 | 14 | 98.4 | 43.2 | 4 | 5/8 | 70 | 85 | 3/4 | M16 | 1.8 |
| 1 1/2 | 40 | 155 | 19.1 | 70 | 29 | 73 | 2 | 16 | 114.3 | 49.5 | 4 | 3/4 | 75 | 90 | 7/8 | M20 | 2.7 |
| 2 | 50 | 165 | 20.7 | 84 | 32 | 92.1 | 2 | 17 | 127 | 61.9 | 8 | 5/8 | 75 | 90 | 3/4 | M16 | 3.2 |
| 2 1/2 | 65 | 190 | 23.9 | 100 | 37 | 105 | 2 | 19 | 149.2 | 74.6 | 8 | 3/4 | 85 | 100 | 7/8 | M20 | 4.6 |
| 3 | 80 | 210 | 27 | 117 | 41 | 127 | 2 | 21 | 168.3 | 90.7 | 8 | 3/4 | 90 | 110 | 7/8 | M20 | 5.9 |
Class 600 Socket Neck Flange Dimensions
| Size in Inch | Size in mm | Outer Dia. | Flange Thick. | Hub OD | Flange Length | RF Dia. | RF Height | Socket Depth | PCD | Socket Bore | No of Bolts | Bolt Size UNC | RF Stud Length | Hole Size | ISO Stud Size | Weight in kg |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | B | C | D | E | F | G | H | J | ||||||||
| 1/2 | 15 | 95 | 14.3 | 38 | 22 | 34.9 | 7 | 10 | 66.7 | 22.2 | 4 | 1/2 | 75 | 5/8 | M14 | 1.3 |
| 3/4 | 20 | 115 | 15.9 | 48 | 25 | 42.9 | 7 | 11 | 82.6 | 27.7 | 4 | 5/8 | 90 | 3/4 | M16 | 1.4 |
| 1 | 25 | 125 | 17.5 | 54 | 27 | 50.8 | 7 | 13 | 88.9 | 34.5 | 4 | 5/8 | 90 | 3/4 | M16 | 1.8 |
| 1 1/4 | 32 | 135 | 20.7 | 64 | 29 | 63.5 | 7 | 14 | 98.4 | 43.2 | 4 | 5/8 | 95 | 3/4 | M16 | 2.3 |
| 1 1/2 | 40 | 155 | 22.3 | 70 | 32 | 73 | 7 | 16 | 114.3 | 49.5 | 4 | 3/4 | 110 | 7/8 | M20 | 3.2 |
| 2 | 50 | 165 | 25.4 | 84 | 37 | 92.1 | 7 | 17 | 127 | 61.9 | 8 | 5/8 | 110 | 3/4 | M16 | 4.1 |
| 2 1/2 | 65 | 190 | 28.6 | 100 | 41 | 105 | 7 | 19 | 149.2 | 74.6 | 8 | 3/4 | 120 | 7/8 | M20 | 5.9 |
| 3 | 80 | 210 | 31.8 | 117 | 46 | 127 | 7 | 21 | 168.3 | 90.7 | 8 | 3/4 | 125 | 7/8 | M20 | 7.3 |
Class 1500 Socket Neck Flange Dimensions
| Size in Inch | Size in mm | Outer Dia. | Flange Thick. | Hub OD | Flange Length | RF Dia. | RF Height | Socket Depth | PCD | Socket Bore | No of Bolts | Bolt Size UNC | RF Stud Length | Hole Size | ISO Stud Size | Weight in kg |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | B | C | D | E | F | G | H | J | ||||||||
| 1/2 | 15 | 120 | 22.3 | 38 | 32 | 34.9 | 7 | 10 | 82.6 | 22.2 | 4 | 3/4 | 110 | 7/8 | M20 | 1.8 |
| 3/4 | 20 | 130 | 25.4 | 44 | 35 | 42.9 | 7 | 11 | 88.9 | 27.7 | 4 | 3/4 | 115 | 7/8 | M20 | 2.3 |
| 1 | 25 | 150 | 28.6 | 52 | 41 | 50.8 | 7 | 13 | 101.6 | 34.5 | 4 | 7/8 | 125 | 1 | M24 | 3.7 |
| 1 1/4 | 32 | 160 | 28.6 | 64 | 41 | 63.5 | 7 | 14 | 111.1 | 43.2 | 4 | 7/8 | 125 | 1 | M24 | 4.1 |
| 1 1/2 | 40 | 180 | 31.8 | 70 | 44 | 73 | 7 | 16 | 123.8 | 49.5 | 4 | 1 | 140 | 1 1/8 | M27 | 5.5 |
| 2 | 50 | 215 | 38.1 | 105 | 57 | 92.1 | 7 | 17 | 165.1 | 61.9 | 8 | 7/8 | 145 | 1 | M24 | 9.8 |
| 2 1/2 | 65 | 245 | 41.3 | 124 | 64 | 105 | 7 | 19 | 190.5 | 74.6 | 8 | 1 | 160 | 1 1/8 | M27 | 16.4 |
| 3 | 80 | 265 | 47.7 | 133 | N/A | 127 | 7 | 203.2 | N/A | 8 | 1 1/8 | 180 | 1 1/4 | M30 | 21.8 |
Socket Weld Flange Weight Chart
| Nominal Pipe Size (NPS) | Class 150 (lbs) | Class 300 (lbs) | Class 400 (lbs) | Class 600 (lbs) | Class 900 (lbs) | Class 1500 (lbs) | Class 2500 (lbs) |
|---|---|---|---|---|---|---|---|
| 1/2" | 0.5 | 1.0 | 1.1 | 1.3 | 2.0 | 2.5 | 3.0 |
| 3/4" | 0.7 | 1.3 | 1.4 | 1.6 | 2.5 | 3.0 | 3.8 |
| 1" | 0.9 | 1.6 | 1.8 | 2.1 | 3.5 | 4.5 | 5.6 |
| 1-1/2" | 1.4 | 2.8 | 3.0 | 3.8 | 5.8 | 7.8 | 9.5 |
| 2" | 2.0 | 4.2 | 4.5 | 5.3 | 8.0 | 11.0 | 14.0 |
| 3" | 3.8 | 8.5 | 9.0 | 11.0 | 15.5 | 23.0 | 32.0 |
| 4" | 5.7 | 13.0 | 14.0 | 17.0 | 24.5 | 37.0 | 48.0 |
| 6" | 9.5 | 27.0 | 29.0 | 33.0 | 47.0 | 72.0 | 95.0 |
| 8" | 15.5 | 42.0 | 45.0 | 55.0 | 78.0 | 120.0 | 155.0 |
| 10" | 22.0 | 65.0 | 70.0 | 85.0 | 120.0 | 180.0 | 240.0 |
| 12" | 31.0 | 92.0 | 100.0 | 125.0 | 175.0 | 265.0 | 365.0 |
Applications
- Petrochemical Industry: For safe handling of fluids and gases.
- Oil and Gas Sector: Suitable for high-pressure lines.
- Power Plants: Used in critical systems for power generation.
- Water Treatment Plants: Ensures secure and reliable connections.
Advantages
- High structural integrity and fatigue strength.
- Easy alignment and welding during installation.
- Minimal risk of leakage due to recessed connection.
- Available in a variety of materials and pressure ratings to suit diverse industrial needs.
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