ASME B16.5 WN
High pressure seal: Class 150-2500 pressure Class, maximum pressure up to 42MPa (Class 2500)
Fatigue resistance design: tapered neck for stress dispersion, thermal cycling resistance ↑300% (compared to flat welding flange)
Full material coverage: Supports carbon steel (ASTM A105), stainless steel (A182F304/316L), duplex steel (A182F51), etc
- Product Introduction
Product definition and technology positioning
ASME B16.5 WN (Welding Neck) flange with conical neck transition structure + full penetration butt welding process complies with American Society of Mechanical Engineers standard (ASME B16.5-2020) and is designed for harsh conditions:
High pressure seal
Class 150-2500 pressure Class, maximum pressure up to 42MPa (Class 2500)
Fatigue resistance design
tapered neck for stress dispersion, thermal cycling resistance ↑300% (compared to flat welding flange)
Full material coverage
Supports carbon steel (ASTM A105), stainless steel (A182F304/316L), duplex steel (A182F51), etc
Matrix of technical parameters
|
Parameters |
Standard range |
Special customization capabilities |
|
Nominal diameter |
NPS 1/2"~24" (DN15~600) |
NPS 72"(DN1800) Extra-large |
|
Pressure rating |
Class 150~2500 |
Class 4500 Ultra High voltage |
|
Sealing surface type |
RF convex (default) |
RTJ ring-slot plane /FF plane |
|
Neck straight edge length |
The bevel length is +6.4mm±0.5 |
Optimized in accordance with ASME B16.5-2020 |
|
Material standards |
ASTM A105/A182 |
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