Weld Neck Flange

  • Sturdy structure: Neck design boosts weld strength, resists high pressure/temperature.

  • Reliable sealing: Precision sealing surface ensures tight, long-lasting leak protection.

  • Even stress distribution: Neck disperses pipeline stress, reducing weld cracking risk.

  • Wide compatibility: Fits steel/stainless steel pipes, covers DN15–DN2000 sizes.


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Product Details

  • Structure: Weld neck + flange disc + bolt holes, neck welded to pipes.

  • Specs: DN15–DN2000; PN10–PN420/Class150–Class2500; -200℃–600℃.

  • Materials: Carbon steel, stainless steel, alloy steel.

  • Standards: GB/T9115, ASME B16.5, JIS B2220.

  • Applications: High-pressure/temp pipelines (oil, chemical, power).


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