A necked welding flange refers to a type of flange with a tapered neck that is butt-welded to a cylinder or pipeline. It belongs to the category of integral flanges.

Features: High temperature resistance, high pressure resistance, minimal deformation, excellent sealing performance, etc.

Main materials:

Alloy series: Nickel-based alloys, high-temperature alloys, precision alloys, corrosion-resistant alloys, zirconium alloys, titanium alloys, etc.
Stainless steel series: Austenitic stainless steel, duplex stainless steel, etc.

Sizes: 1/8"–24" NPS, DN6–600. (Larger sizes available upon agreement)

Pressure ratings: 150–2500 LB; PN2.5–PN420.

Standards: ASME/ANSI/DIN/GB/HG/JIS/JPI/ISO/BS, etc.

Sealing faces: RF, RJF, MF, FMF, FF, SRF, TF, GF.

Wall thickness: SCH/STD/XXS/XS.

Application fields: Petrochemicals, pharmaceuticals and healthcare, power generation, aerospace, military industry, fire protection, metallurgy, shipbuilding, gas, nuclear power, environmental protection, and other sectors.