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  • Orifice flange

    Haokun is top china flange and forgings with 20+ years experience,ISO9001 certified factory. We have strong supply chain, more than 20000 Ton/Year. We supply all kinds of flange for piping design, fittings and valves, equipment and equipment parts (such as manholes, sight glass level gauges, etc.), industrial furnaces, thermal engineering, water supply and drainage, heating and ventilation, automatic control.

    1)Body material: Carbon Steel:ASTM A105, 20#, Q235, 16Mn, P355QH, 250GH, 280GH, 350LF2, etc.

    2)Alloy Steel: A182F11, 16MnR, C, 12Cr1MoV, 16Mo3, etc. Stainless Steel:304, 304L, 316L, 316, F51, etc.

    3)Standards: ANSI/ASME B16.1-16.5

    4)Pressure Rating: CLASS 150-2500

    5)Sealing  surface: RF, MFM, FF, TG, RTJ

    6)Size range: DN15---DN1500

    7)Connection: Long Welding Neck flange, Swivel Flange, Plate flange, Anchor flange, Blind flange, Threaded flange, Orifice flange, Slip-on flange, Tube Sheet, Welding Neck flange, Lap joint flange, Socket Welding flange, Spectacle blind

    Product Description

    Haokun's series of orifice flange is the orifice plate connected to the pipeline by the orifice plate flowmeter (the measuring part of the orifice plate flowmeter). The two flanges fix the orifice plate in the middle and lead it to the differential pressure transmitter through the pressure taking point on the flange to measure the flow.

    Technical Specifications

    Body material:

    Carbon Steel:ASTM A105, 20#, Q235, 16Mn, P355QH, 250GH, 280GH, 350LF2, etc.

    Alloy Steel: A182F11,  16MnR, C, 12Cr1MoV, 16Mo3, etc.

    Stainless Steel:304, 304L, 316L, 316, F51, etc.

    Size range:

    DN15---DN600

    Pressure rating:

    CLASS300-CLASS2500

    Applicable medium:

    Water, steam≤1.0MPa, Oil&Gas

    Mode of operation:

    Manual

    Sealing  surface

    RF, FF, RTJ

    Applicable industry:

    Orifice flange is widely used in petroleum, FPSO, the chemical industry, metallurgy, electric power, light industry, and so on.

    Design & Manufacture:

    API, ASME, ASTM, ANSI, BS, EN, DIN, JIS, ISO,  NORSOK, SANS, GOST, GB.

    • Custom Forgings

      If the application requires a custom solution, Newman Flange’s forging capabilities can help solve the most challenging requirements.

    • Custom Machining

      Newman Flange can provide machining capabilities that can meet the most stringent dimensional specifications.

    • Expedited Service

      We understand that downtime is expensive and sometimes standard delivery is not an option. Inquire about our expedited options and we will help find a solution that meets your requirements.

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