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The Weld Neck Flange is a premium forged steel pipe connection component designed for high-pressure and high-temperature industrial applications. Manufactured from ASTM A105 carbon steel, this flange provides exceptional strength and durability in demanding environments such as petrochemical, oil and gas, and power generation industries.
Key Features
Forged Carbon Steel Construction: Made from ASTM A105 forged carbon steel for superior mechanical properties and long service life
Long Tapered Hub: Provides excellent stress distribution and reduces turbulence at the flange-to-pipe junction
Full Penetration Butt Weld: Ensures a leak-proof connection suitable for critical applications
ANSI B16.5 Compliant: Manufactured to exacting ANSI/ASME B16.5 standards for dimensional accuracy
Raised Face Design: Features RF facing for reliable gasket sealing across all pressure classes
Technical Specifications
Specification
Details
Flange Type
Weld Neck (WN)
Material Grade
Carbon Steel ASTM A105
Standard
ANSI B16.5 / ASME B16.5
Pressure Class
Class 150, 300, 400, 600, 900, 1500, 2500
Size Range
1/2 inch NB to 48 inch NB
Facing Type
Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ)
Wall Thickness
Schedule 5S through Schedule XXS
Certification
ISO, TUV, SGS
Applications
Oil and gas pipeline systems
Petrochemical processing plants
Power generation facilities
Chemical processing equipment
High-pressure steam systems
Packaging & Delivery
All flanges are packed in standard shipping packages with anti-rust treatment. Plastic end caps protect flange faces during transit. Custom packaging available upon request. Delivery within 15-30 working days.
TOBO GROUP sales head offce in Shanghai.
We are one of the Professional manufacturers Exporter Pipeline products in China .Our company was established in 1998, the plant covers 550, 000 square meters and a construction area ... TOBO GROUP sales head offce in Shanghai.
We are one of the Professional manufacturers Exporter Pipeline products in China .Our company was established in 1998, the plant covers 550, 000 square meters and a construction area ...