Stainless Steel Weld Neck Flange

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    Size: (1/2″) To (48″)
    NPS (Normal Pipe Sizes) Size in Inch: 1/2 to 24
    Material: Stainless Steel SS304 and SS316
    Class: 150 / 300 / 400 / 600 / 900 / 1500 / 2500
    Standard: ASME B16.5/ ASME B16.47
    Flange Thickness: 9.6 to 184mm
    No of Bolts: 4 / 8 / 12 / 16 / 20 /24

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        Stainless Steel Weld Neck Flange

        Stainless Steel Weld Neck Flanges are an essential component in piping systems, offering high strength, durability, and resistance to corrosion. These flanges are widely used in industries ranging from oil and gas to food processing due to their versatility and robust design. This article delves into the detailed specifications, standards, materials, and applications of Stainless Steel Weld Neck Flanges, ensuring a comprehensive understanding for industry professionals and buyers.

        Specifications of Stainless Steel Weld Neck Flange

        Stainless Steel Weld Neck Flanges are designed for high-pressure applications and are characterized by their long tapered hub. This design reduces stress concentration and makes them ideal for critical applications. Below are the key specifications:

        1. Size: From 1/2″ to 48″
        2. Bore Diameter: NPS ≤ 10
        3. Pressure Ratings: Minimum pressure ranges from 150# to 2500#
        4. Thickness Length: NPS ≤ 18

        JIS Standards

        Stainless Steel Weld Neck Flanges adhere to the following JIS (Japanese Industrial Standards):

        • 5K
        • 10K
        • 16K
        • 20K
        • 30K
        • 40K
        • 63K

        These standards ensure compatibility with various piping systems and pressure requirements.

        Standard Dimensions and Manufacturing Standards

        Manufacturers produce Stainless Steel Weld Neck Flanges in compliance with internationally recognized standards. These include:

        • EN-1092 Flange
        • ASME B16.48 Flange
        • API605 Flange
        • BS4504 Flange
        • ISO Flange
        • API7S-43 Flange
        • ANSI/ASME B16.5 Flange
        • API7S-15 Flange
        • MSS S44 Flange
        • IS 2062 Flange
        • ASME B16.36 Flange
        • DIN Flange
        • AWWA C207 Flange
        • B16.47 Series A & B Flange
        • BS1560-3.1 Flange
        • ISO70051 Flange
        • API Flange

        These standards guarantee precise dimensions, durability, and interchangeability across applications.

        Flange Face Types

        Stainless Steel Weld Neck Flanges come with a variety of flange face types to meet different sealing requirements:

        • Raised Face (RF)
        • Groove and Small Tongue Groove
        • RTJ (Ring Type Joint)
        • Flat Face (FF)
        • Large Tongue and Large Male-Female
        • Small Male-Female
        • Lap-Joint Face

        Each face type is designed for specific applications, ensuring a secure seal under different operating conditions.

        Types of Flanges

        While Weld Neck Flanges are highly popular, other types include:

        1. Threaded Flange
        2. Lap Joint Flange
        3. Socket-Weld Flange
        4. Blind Flange
        5. Slip-On Flange
        6. Weld Neck Flange

        These flanges cater to various industrial needs and applications, offering versatility and adaptability.

        Standard Materials

        Stainless Steel Weld Neck Flanges are manufactured using a range of materials, including:

        • Duplex Steel & Super Duplex Steel
        • Copper Nickel
        • Wrought Iron
        • Inconel
        • Mild Steel
        • Stainless Steel
        • Hastelloy
        • Cast Iron
        • Alloy Steel
        • Carbon Steel

        The choice of material depends on factors such as operating pressure, temperature, and the chemical composition of the fluid being transported.

        Manufacturing Process

        The manufacturing process ensures high quality and precision. It includes:

        • Forging
        • Machining
        • Heat Treatment

        These processes enhance the mechanical properties and corrosion resistance of the flange.

        Other Types of Flanges

        In addition to Weld Neck Flanges, manufacturers offer:

        • Forged Flanges
        • Plate Flanges
        • Threaded Flanges

        Each type has unique features suited to specific industrial requirements.

        Applications

        Stainless Steel Weld Neck Flanges are used across various industries due to their reliability and strength. Key applications include:

        • Oil and Gas Industry
        • Power Plants
        • Food Processing and Manufacturing
        • Waterworks Systems
        • Fossil Fuel Power Plants
        • Nuclear Power Applications
        • Municipal Pipe Systems

        These flanges are crucial for connecting pipelines, valves, and other equipment in critical applications.

        Stainless Steel Weld Neck Flanges are indispensable in modern industrial applications. Their robust design, adherence to international standards, and versatility make them a preferred choice for engineers and buyers worldwide. By understanding their specifications, materials, and applications, businesses can ensure optimal performance and long-term reliability in their systems.

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