stainless steel Weld Neck Flange

Product Description

Stainless Steel Weld Neck Flange (referred to as WN Flange) is a core high-pressure connecting pipe fitting in industrial piping systems. Its core feature is a tapered long neck butt-welded to the pipeline, with uniformly distributed bolt holes on the disc body, which is tightly connected with another flange through bolts to achieve sealed connection. The product is integrally forged with high-quality stainless steel materials, manufactured in accordance with international general pipeline standards, and has excellent corrosion resistance, structural strength and sealing performance. It is the preferred connecting piece for working conditions with high temperature, high pressure and large fluctuations of temperature/pressure, and is widely used in fluid transmission piping systems in harsh fields such as petrochemical industry, shipbuilding & ocean engineering and power energy.

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Product Specifications & Parameters

Nominal Diameter (DN): DN15-DN600 (1/2"-24"), custom support for ultra-large diameter up to DN1500
Pressure Rating: National Standard PN2.5-PN160; American Standard Class150-Class2500, meeting full working pressure requirements
Executive Standards: GB/T9115, ASME B16.5/B16.47, HG/T20592, DIN, JIS, etc.
Sealing Face Types: Raised Face (RF), Male-Female Face (MFM), Tongue-Groove Face (TG), Ring Type Joint (RTJ), Flat Face (FF)
Connection Method: Neck Butt Weld, Disc Bolted Fastening

Materials

304 / 304L
316 / 316L
321 / 310S
2205 / 2507 Duplex Stainless Steel
Custom materials available

Applications

Oil & Gas Transportation
Petrochemical Engineering
Water Supply & Sewage Treatment
Food & Beverage Production
Pharmaceutical & Sanitary Industry
Shipbuilding & Marine Engineering
Electric Power & Boiler Industry
Mechanical & Pipeline Engineering

Why Choose Us

Professional flange manufacturer with rich export experience
Complete specifications and sufficient stock
Strict quality control and testing
Factory direct sales with competitive price
Fast delivery and flexible MOQ
Customized service for drawings and samples

Contact Us

If you need quotations, catalogues, samples or customized flange solutions, please provide us with type, size, material, pressure and standard, we will reply within 12 hours.

Packaging & Transportation

Standard export packaging: Wooden cases/pallets, with foam and protective film to avoid scratches and damages during transportation. Support sea, air and express transportation according to customer requirements.