Long Welding Neck Flange

Long Welding Neck Flange

A Long Welding Neck Flange (LWN Flange) is a specialized forged flange featuring an extended tapered neck that provides enhanced strength, smooth flow transition, and excellent stress distribution. It is commonly used in high-pressure, high-temperature, and critical process applications where reliability and structural integrity are essential. Manufactured from premium-quality forged steel, long welding neck flanges ensure secure, leak-free connections and long-lasting performance.

Key Features

• Manufactured from high-quality forged steel for superior mechanical strength

• Extended tapered neck minimizes stress concentration and improves load distribution

• Butt-weld connection provides a strong, permanent, and leak-proof joint

• Excellent resistance to high pressure, high temperature, and corrosion

• Smooth internal bore reduces turbulence and pressure loss

• Precision-machined sealing surfaces for reliable gasket performance

• Available in various pressure classes, materials, and custom specifications

• Manufactured to meet international quality standards

Applications

• Oil and gas processing plants

• Petrochemical and chemical industries

• Power generation facilities

• Pressure vessels and storage tanks

• Offshore and marine engineering

• High-pressure steam systems

• Industrial process piping

• Water treatment and utility systems

Product Specifications

Advantages

• Superior structural strength for demanding applications

• Excellent stress distribution reduces fatigue and extends service life

• Reliable leak-free performance under extreme operating conditions

• Improved flow characteristics with minimal turbulence

• High resistance to corrosion, pressure, and thermal expansion

• Easy integration into high-performance piping and pressure vessel systems

• Long operational life with minimal maintenance

Our Long Welding Neck Flanges are manufactured under strict quality control to ensure precision, durability, and compliance with international standards. They are the preferred choice for critical industrial piping systems, pressure vessels, and high-pressure process applications requiring exceptional strength, reliability, and sealing performance.