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Duplex Stainless Steel Welding Neck Flange with Long Weld Neck and ASME B16.9 Standard for Secure Pipeline Connections

Product Summary
Welding Neck Flange ensures secure pipeline connections with ASME B16.9 compliance, PED certification, and forged F51/Carbon Steel construction. Features long weld neck end type, FF/RF faces, and -50°C to 550°C temperature range for high-pressure industrial piping systems.

Product Details

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Duplex Stainless Steel Welding Neck Flange

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ASME B16.9 Standard Weld Neck Flange

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Long Weld Neck Pipe Flange

Certificates: PED
Temperaturerange: -50°C To 550°C
Carbon: Carbon Steel
Flange Standard: ASME B16.9
Steel: Weld-neck Collar
Packing: Wooden Case
Flanges Face: FF, RF
Stainless Flanges: Duplex Stainless Steel Flanges
Product Description
Welding Neck Flange - Long Weld Neck End Type
Product Overview

The Welding Neck Flange is a critical component designed for secure, leak-proof connections in industrial piping systems. Manufactured to ASME B16.9 standards, this flange ensures high reliability and compatibility with various pipe sizes and pressure ratings. Constructed from high-grade Carbon Steel with forged F51 material, it offers exceptional strength, corrosion resistance, and durability for demanding applications.

Key Features
  • Product Name: Welding Neck Flange
  • Material Options: Duplex Stainless Steel Flanges, Forged F51, Carbon Steel, X2CrNiMoN22-5-3
  • Standards & Certifications: PED Certified, EN 1092-1 compliant
  • End Type: Long Weld Neck for stress minimization
  • Flange Face: FF, RF
  • High-quality forged materials ensuring durability and strength
  • Suitable for various industrial applications requiring reliable connections
  • Available in full range of stainless steel grades
Technical Specifications
Parameter Specification
Forged Material F51 (Duplex 2507)
Application Piping Systems, High Pressure and Temperature
Flange Standard ASME B16.9, EN 1092-1
End Type Long Weld Neck
Temperature Range -50°C to 550°C
Flanges Face FF, RF
Steel Type Weld-neck Collar
Carbon Content Carbon Steel
Specification EN ISO 9692-2
Applications

This Welding Neck Flange is engineered for critical applications across multiple industries:

  • Oil & Gas: High-pressure pipeline systems with aggressive fluids
  • Chemical Processing: Corrosion-resistant applications in chemical plants
  • Power Generation: Steam and heat exchanger systems requiring thermal stability
  • Marine & Offshore: Easy alignment and welding for marine engineering
  • Water Treatment: Desalination and water treatment plants
Customization Options

We offer comprehensive customization services to meet specific project requirements. Our Welding Neck Flanges can be tailored for compatibility with various standards including 1.4404 EN 1092‑1:2018 Weld Neck Flange (316L), F22 flange EN 1092-1, and 1.4571 lap joint flange EN 1092-1. Custom dimensions, material selection, and compliance with international standards ensure precise integration into your piping systems.

Support & Services

Our comprehensive support includes:

  • Detailed installation guides and maintenance instructions
  • Engineering support for product selection and customization
  • On-site support and training sessions
  • Rigorous testing and certification documentation
  • After-sales services including maintenance advice and replacement parts

Each flange undergoes rigorous testing to ensure compliance with international standards and guarantee product reliability and traceability.

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