Welding Neck flange(DIN2631/DIN2632…DIN2638) - Welding neck flange
Welding Neck flange - Welding neck flange
Welding Neck flange(EN1092-1 TYP11) - Welding Neck Flanges (WN Flanges) are a type of steel flange designed for high-pressure, hig...

Description

Welding Neck Flange (WN Flange) DescriptionA Welding Neck Flange features a long tapered hub that gradually transitions to the wall thickness of the pipe.It is butt-welded to the pipe, which provides strong, leak-proof connections and reduces stress concentrations at the base of the flange.Design FeaturesFeatureDescriptionNeck / HubTapered to match the pipe's wall thickness (schedule)Face TypeRaised Face (RF), Ring-Type Joint (RTJ), or Flat Face (FF)Bore MatchMatches the inner diameter of the pipe exactlyWelding TypeButt weld (requires skilled welding)

Technical data

StandardsStandard Size Range Pressure ClassASME B16.5½" to 24"Class 150–2500ASME B16.4726" to 60"Class 150–900EN 1092-1 Type 11DN 10 to DN 2000PN 2.5 to PN 100DIN 2631–2635DN 10 to DN 1000PN 6 to PN 100 MaterialsCarbon Steel (A105, A350 LF2)Stainless Steel (304, 316, 321)Alloy Steel (F11, F22, F91)AdvantagesExcellent strength and stress distributionDurable for repeated thermal cyclingProvides leak-free connectionsEasy to inspect (radiographic & ultrasonic)

Areas of application

Applications
Welding neck flanges are ideal for:

High-pressure systems (oil & gas, petrochemical, power plants)
High-temperature pipelines
Subsea and offshore applications
Hazardous fluid systems

ISO

PED, ISO9001, ISO14001, ISO45001

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About us

Hebei PuXing Alloy Technology Co., Ltd. stands as a leading enterprise specializing in the production of a diverse hose clamps. Embracing a comprehensive industrial chain development model—from the selection of raw materials like Stainless Steel Strips to the precision of automated assembly—our company is dedicated to providing clients with personalized, ultimate solutions.
Every aspect, from the choice of stainless steel strips to the design of stainless steel screws and the automation of assembly processes, is finely tuned to meet the unique needs of clients. The incorporation of cutting-edge optical screening and visual recognition technology signifies a commitment to driving a new ecological era in green steel production. This strategic move aims to digitize all production processes gradually, ensuring that the delivered products not only meet but exceed customer expectations.

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Double Weld-Neck Flange | Flanges | Blind Flanges

Double Weld-Neck Flange | Flanges | Blind Flanges

Double Weld-Neck Flange | Flanges | Blind Flanges

Double Weld-Neck Flange | Flanges | Blind Flanges

Double Weld-Neck Flange
Double Weld-Neck Flange ONLY from special materials

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