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The Welding Neck Flange (WN Flange) is a critical component in piping systems requiring strength, reliability, and durability. Designed with a butt weld end connection, this flange ensures smooth transition between flange and pipe, minimizing stress concentration and enhancing overall system integrity. The bevel end, manufactured to ANSI B16.25 standards, facilitates precise and secure welding for leak-proof joints and long-lasting performance under various operating conditions.
Our product line includes specialized materials to meet specific industry requirements, including duplex 2205 EN 1092-1 weld neck flanges for exceptional corrosion resistance and 13CrMo4-5 flanges for high-temperature strength applications. All flanges are engineered to meet EN 1092-1 standards, ensuring compatibility and interchangeability with piping components worldwide.
Product Features
Product Name: Welding Neck Flange
End: Bevel End ANSI B16.25
Material: Carbon Steel
Pressure Rating: Class 150 To Class 2500
Length (Lwn): 697MM
Flange Thickness: Varies By Size And Pressure Class
Compliant with EN 1092-1 Weld Neck Flange standards
Available in 1.4541 (321) Stainless PN16 with Raised Face
Also available: 13CrMo4-5 flange
Duplex 2507 Blind Flange (1.4501) EN 1092-1 | Super Duplex PN40
Technical Specifications
Parameter
Specification
Product Name
Welding Neck Flange
Type Flange
WN Flange
Flange Thickness
Varies By Size And Pressure Class
End Type
Long Weld Neck
End
Bevel End ANSI B16.25
Face Type
Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ)
End Connection
Butt Weld
Corrosion Resistance
High (depending On Material Grade)
Packing
Wooden Case
Lwn
L=697MM
Applications
Welding Neck Flanges are widely utilized in various industrial applications requiring robust and leak-proof joints, particularly in high-pressure environments. Key application areas include:
Oil and Gas Industry: Duplex 2205 stainless steel flanges are favored for exceptional corrosion resistance and high-pressure tolerance in pipelines, refineries, and offshore drilling platforms.
Power Generation Plants: Used in high-pressure steam systems and critical fluid transfer lines to ensure reliable performance under extreme conditions.
Chemical Processing: Employed in petrochemical industries where durability and safety are paramount in handling aggressive chemicals and fluctuating temperatures.
Customization Services
Our Welding Neck Flange product offers exceptional customization services to meet specific project requirements. With a length (Lwn) of 697MM and bevel end conforming to ANSI B16.25 standards, this Long Weld Neck flange ensures reliable and precise connections.
We provide options using high-quality materials including X5CrNi18-10 flange and Duplex 2205 Weld Neck Flange (EN 1092-1 X2CrNiMoN22-5-3 PN40), delivering superior corrosion resistance based on selected material grade.
Customization services allow specification of dimensions, end types, and material grades to perfectly suit your application, ensuring optimal performance and compliance with industry standards.
Support and Services
Our technical support team is available to assist with installation guidance, product specifications, and troubleshooting. We offer comprehensive services including:
• Flange customization and material selection advice
• Compatibility assessments for specific project requirements
• Detailed product documentation with dimensional drawings and pressure ratings
• Certification information and regular maintenance tips
• Welding process support and best practices
Our knowledgeable support staff is committed to delivering timely and effective solutions to ensure your operations run smoothly and maximize the longevity of your flange installations.
Best Alloy Engineering Alloy Pipe as s a reference point for excellence in the manufacture and distribution of fittings, piping, bends, forged flanges , clad products and specialties for the upstream, midstream and downstream sectors of oil & gas, thermal and nuclear power generation.
The C...
Best Alloy Engineering Alloy Pipe as s a reference point for excellence in the manufacture and distribution of fittings, piping, bends, forged flanges , clad products and specialties for the upstream, midstream and downstream sectors of oil & gas, thermal and nuclear power generation.
The C...
