 |
| Quantity: | |
|---|---|
SW Flange
SDFL
| Nominal Size | Outer Diameter | Socket Diameter | Flange Ring Height | Flange Overall Height | Bore Diameter | Socket Depth | Weld Groove Diameter | Sealing Face Diameter | Number of Bolt Holes | Bolt Hole Diameter | Central circle diameter | |
| DN | NPS | A | B | C | D | E | K | F | G | I | J | |
| 15 | 1/2 | 88.9 | 15.7 | 11.2 | 15.7 | 22.4 | 9.6 | 30.2 | 35.1 | 4 | 15.7 | 60.5 |
| 20 | 3/4 | 98.6 | 20.8 | 12.7 | 15.7 | 27.7 | 11.1 | 38.1 | 42.9 | 4 | 15.7 | 69.9 |
| 25 | 1 | 108 | 26.7 | 14.2 | 17.5 | 34.5 | 12.7 | 49.3 | 50.8 | 4 | 15.7 | 79.3 |
| 32 | 1-1/4 | 117.3 | 35.1 | 15.7 | 20.6 | 43.2 | 14.2 | 58.7 | 63.5 | 4 | 15.7 | 88.9 |
| 40 | 1-1/2 | 127 | 40.9 | 17.5 | 22.3 | 49.5 | 15.7 | 65 | 73.15 | 4 | 15.7 | 98.6 |
| 50 | 2 | 152.4 | 52.6 | 19.1 | 25.4 | 62 | 17.5 | 77.7 | 91.9 | 4 | 19.1 | 120.7 |
| 65 | 2-1/2 | 177.8 | 62.7 | 22.4 | 28.4 | 74.7 | 19 | 90.4 | 104.6 | 4 | 19.1 | 139.7 |
| 80 | 3 | 190.5 | 78 | 23.9 | 30.2 | 90.7 | 20.6 | 108 | 127 | 4 | 19.1 | 152.4 |
Applications & Features of Socket Weld Flanges
Application Scenarios:
1.High-pressure small-bore lines (instrument impulse lines, hydraulic control, NPS ≤ 2")
2.Steam tracing lines, relief valve connections (temp ≤ 400°C)
3.High-purity fluid systems (dead space-free weld, Ra ≤ 0.8μm)
4.Ship fuel/lube oil lines (vibration resistance)
5.Nuclear island instrument lines (ASME III-NC certified)
Key Features:
Robust seal: Pipe inserted into socket + fillet weld → zero leakage
Vibration resistance: Weld away from flow, withstands >500Hz
Easy install: No pipe beveling, 40% faster alignment & welding
High P/T capacity: Class 3000/PN 100, ≤550°C (alloy steel)
Zero stagnation: Smooth fluid contact, meets 3-A/EHEDG sanitary
Custom Solutions: Share fluid specs – we optimize socket depth & gap!
| Nominal Size | Outer Diameter | Socket Diameter | Flange Ring Height | Flange Overall Height | Bore Diameter | Socket Depth | Weld Groove Diameter | Sealing Face Diameter | Number of Bolt Holes | Bolt Hole Diameter | Central circle diameter | |
| DN | NPS | A | B | C | D | E | K | F | G | I | J | |
| 15 | 1/2 | 88.9 | 15.7 | 11.2 | 15.7 | 22.4 | 9.6 | 30.2 | 35.1 | 4 | 15.7 | 60.5 |
| 20 | 3/4 | 98.6 | 20.8 | 12.7 | 15.7 | 27.7 | 11.1 | 38.1 | 42.9 | 4 | 15.7 | 69.9 |
| 25 | 1 | 108 | 26.7 | 14.2 | 17.5 | 34.5 | 12.7 | 49.3 | 50.8 | 4 | 15.7 | 79.3 |
| 32 | 1-1/4 | 117.3 | 35.1 | 15.7 | 20.6 | 43.2 | 14.2 | 58.7 | 63.5 | 4 | 15.7 | 88.9 |
| 40 | 1-1/2 | 127 | 40.9 | 17.5 | 22.3 | 49.5 | 15.7 | 65 | 73.15 | 4 | 15.7 | 98.6 |
| 50 | 2 | 152.4 | 52.6 | 19.1 | 25.4 | 62 | 17.5 | 77.7 | 91.9 | 4 | 19.1 | 120.7 |
| 65 | 2-1/2 | 177.8 | 62.7 | 22.4 | 28.4 | 74.7 | 19 | 90.4 | 104.6 | 4 | 19.1 | 139.7 |
| 80 | 3 | 190.5 | 78 | 23.9 | 30.2 | 90.7 | 20.6 | 108 | 127 | 4 | 19.1 | 152.4 |
Applications & Features of Socket Weld Flanges
Application Scenarios:
1.High-pressure small-bore lines (instrument impulse lines, hydraulic control, NPS ≤ 2")
2.Steam tracing lines, relief valve connections (temp ≤ 400°C)
3.High-purity fluid systems (dead space-free weld, Ra ≤ 0.8μm)
4.Ship fuel/lube oil lines (vibration resistance)
5.Nuclear island instrument lines (ASME III-NC certified)
Key Features:
Robust seal: Pipe inserted into socket + fillet weld → zero leakage
Vibration resistance: Weld away from flow, withstands >500Hz
Easy install: No pipe beveling, 40% faster alignment & welding
High P/T capacity: Class 3000/PN 100, ≤550°C (alloy steel)
Zero stagnation: Smooth fluid contact, meets 3-A/EHEDG sanitary
Custom Solutions: Share fluid specs – we optimize socket depth & gap!
