1. Definition:
A Weld Neck Flange is a type of flange that has a long tapered hub, which is welded to the pipe. This design provides excellent stress distribution from the flange to the pipe, making it ideal for high-pressure and high-temperature applications.
2. Material:
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Mild Steel (MS): Offers durability, strength, and cost-effectiveness for a wide range of industrial applications.
3. Key Features:
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Designed for high-pressure and high-temperature systems.
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Provides superior mechanical strength and leak-proof connections.
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Requires butt welding to the pipe for permanent, strong connections.
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Minimizes stress concentration at the base of the flange.
4. Applications:
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Oil & gas pipelines
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Petrochemical and chemical industries
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Power plants and refineries
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Water treatment plants and critical piping systems
5. Standards & Sizes:
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Typically available in ANSI/ASME B16.5 dimensions.
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Sizes range from 1/2” to 48”, depending on the requirement.
