DN400 Carbon Steel Weld Neck Flange ASTM A105 Class 150 BW Bore Match Pipe Size

Product Overview

This DN400 weld neck pipe flange is manufactured from high-grade carbon steel conforming to ASTM A105 standard, rated for Class 150 pressure service, with butt weld (BW) connection and a bore sized to match DN400 pipe dimensions. It is designed for reliable, leak-free piping connections in industrial fluid systems, offering excellent structural strength and pressure resistance for long-term operation.

Key Features

• Fabricated from ASTM A105 carbon steel for high mechanical strength and durability
• Class 150 pressure rating suitable for medium-pressure industrial piping applications
• Weld neck design distributes stress at the joint, reducing fatigue and improving system reliability
• Butt weld (BW) end provides a strong, permanent, leak-tight connection to pipe
• Bore machined to match DN400 pipe size for smooth flow and minimal turbulence
• Strict dimensional compliance with industrial standards for interchangeability

Specifications

Applications

This weld neck flange is widely used in industrial piping systems across oil & gas, petrochemical, water treatment, power generation, and general process industries. It is ideal for medium-pressure fluid transfer lines, process piping networks, and systems requiring robust, long-lasting flange connections with high structural integrity.

Package Contents

• 1 x DN400 ASTM A105 Class 150 Weld Neck Butt Weld Pipe Flange