Flanges / WN
Weld Neck Flange
Industry-standard solution for high pressure and high temperature applications.
Technical Specifications
Pressure
150# - 2500#
Temperature
-29°C to +538°C (Carbon) | -196°C to +816°C (Stainless)
Size
1/2" - 60"
materials
A105, A350 LF2, A182 F304/L, A182 F316/L, A182 F11, A182 F22
Standards
ASME B16.5, ASME B16.47, DIN 2633-2638, EN 1092-1
Key Features
- Excellent mechanical strength
- High vibration and shock resistance
- Even stress distribution into the pipe
- Long service life
- High temperature capability
- Easy alignment and installation
Applications
- Power plants
- Petrochemical facilities
- High-pressure steam lines
- Refineries
- Compressor stations
- Critical process lines
Dimension Table
| Nominal Size | Outside Diameter (mm) | Thickness (mm) | Bolt Circle (mm) | No. of Bolts | Bolt Size |
|---|---|---|---|---|---|
| 1/2" | 89 | 11 | 60.3 | 4 | 1/2" |
| 1" | 108 | 14 | 79.4 | 4 | 1/2" |
| 2" | 152 | 19 | 120.7 | 4 | 5/8" |
| 4" | 229 | 24 | 190.5 | 8 | 5/8" |
| 8" | 343 | 29 | 298.5 | 8 | 3/4" |
| 12" | 483 | 33 | 431.8 | 12 | 7/8" |
Technical Notes
- 01Pipe wall thickness should match the flange neck thickness.
- 02Welding must be performed by qualified welders.
- 03Consider thermal expansion for high-temperature services.
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