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Large diameter flange

★ Production standard: Chinese standard, American standard, European standard, German standard, Russian standard, Japanese standard, British standard, South African standard;

★ Material: carbon steel, stainless steel, alloy steel;

★ Size:1/2”-120”; DN15-DN3000;

★ Pressure rating:150#; 300#; 600#; 900#; 2000#; 3000#; 6000#; 9000#;

★ Coating: anti-corrosion coating; galvanized;

★ Applications:Construction, chemical industry, electric power, water treatment, petroleum, aerospace, fire protection, industry, shipbuilding, pharmaceuticals, etc.;

★ Remarks:Customized products can be produced according to customer requirements;

  • Commodity name： Large diameter flange

Category:

Large diameter flange

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  • Description

  • Large diameter flange

    1. Production standard:

    ★Chinese standard:
    ⊙ National Standards: GB/T9119-2010, GB/T2555-81; GB/T9115.1-2000, GB/T9115.2-2000, GB/T9115.3-2000, GB/T9115.4-2000
    ⊙ Ministry of Chemical Industry standard HG/T20592-2009, HG20593-2009, HG20615-2009;
    ⊙ Standards of the Ministry of Machinery: JB/T81-94, JB/T74-94, JB/T75-94; JB/T86.2-94
    ⊙ Marine standard CB/T47-1999
    ⊙ Energy industry standard recommendation: NBT47023-2012
    ★American Standard: ASME B16.5, ANSI
    ★European standard: EN 1092-1:2007
    ★German standard: DIN2527, 2573, 2627-2638, 2673, 2552, 2653, 2655, 2656, 2641, 2642, 2565-2569
    ★Russian standard: GOST12820-80, GOST 12836-80, GOST 12821-80
    ★Japanese standard: JIS B2220
    ★British Standard: BS10 TABLE D/E
    ★South African Standard: SABS 1123

    2. Material:

    ★Carbon Steel: ASTM A105, 20#, Q235, 16Mn, ASTM A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2, ASTM A694 F42, F46, F48, F50, F52, F56, F60, F65, F70;
    ★Stainless Steel: ASTM A182 F304, 304L, F316, 316L, 1Cr18Ni9Ti, 0Cr18Ni9Ti, 321, 18-8;
    ★Alloy Steel: ASTM A182 F1, F5a, F9, F11, F12, F22, F91, A182F12, A182F11, 16MnR, Cr5Mo, 12Cr1MoV, 15CrMo, 12Cr2Mo1, A335P22, St45.8/Ⅲ;

    3. Size:1/2”-120”; DN15-DN3000

    4. Pressure level:150#；300#；600#；900#；2000#；3000#；6000#；9000#

    5. Coating:Anti-corrosion coating; galvanized.

    6. Detection:Chemical composition analysis; Mechanical properties; Metallographic test,; Acid resistance test,; Heat treatment; Ultrasonic test; Penetration test; Magnetic particle test; X-ray detection; Hydrostatic test; Burst test; According to customer needs

    7. Application:Construction, chemical industry, electric power, water treatment, petroleum, aerospace, fire protection, industry, shipbuilding, pharmaceuticals, etc.

    8. Remarks:Customized products can be produced according to customer requirements

    Schematic diagram of flange structure

    Schematic diagram of flange structure

    Product Display

    Use:Large-diameter flange is a kind of flange, which is widely used in machinery industry, chemical industry, wind power industry and sewage treatment industry.

    ★ The production process is divided into rolling and forging.
    ★Materials are carbon steel, stainless steel and alloy steel.
    ★ Common large-diameter flanges include flat welding flanges and butt welding flanges.
    ★ Large-diameter flat welding flanges have poor rigidity and are suitable for occasions where the pressure p≤4MPa;
    ★ Butt welding flange is also called high neck flange, which has high rigidity and is suitable for occasions with high pressure and temperature.

    There are three types of flange sealing surface:

    ★ Flat sealing surface, suitable for occasions where the pressure is not high and the medium is non-toxic;
    ★ Concave-convex sealing surface, suitable for occasions with slightly higher pressure;
    ★ The tongue and groove sealing surface is suitable for occasions with flammable, explosive, toxic media and high pressure.

    Large diameter flange

Key words:

Large diameter flange

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