ASME SA-182 Gr.F321H FVC Forging Steel Flanges For Chemical Industry

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  RCF NORSOK NCF5 Series

  Based on NORSOK L005 code, suitable for critical sealing applications with high thermal expansion, cyclic loading such as Risers, single point mooring systems, manifolds, X-Trees, subsea pipelines, heat exchangers and a multitude of process piping systems.

RCF Advantage

• Space saving

  • Weight saving up to 70%~80% than ANSI flanges

• Double Independent Seals make it er

  • Positive sealing method

• Integrated sealing system (both inside and outside)

  • Larger range in design temperature and pressure

RCF Working Principle

• The RCF compact flange design principle is that the flange face includes two independent seals. The first seal is created by application of seal seating stress at the flange heel. The main seal is the IX seal ring. The seal ring force is provided by the elastic stored energy in the stressed seal ring. Any heel leakage will give internal pressure acting on the seal ring inside intensifying the sealing action.

• RCF Size and Pressure Rating

  • 1/2”~48” in size and Class 150# to 2500# in pressure rating.
  • Bigger size and higher pressure rating on request.

• RCF Materials

  • ASTM A105, A350 LF2, LF6, A694 F52~F70
  • AISI 4130, AISI 8630
  • A182 F316/316L, F51, F53, F55, Inconel 625, Incoloy 825.
  • Other material on request
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  RCF Gasket

  • RCF IX seal ring, axial forces are exerted on the taper of the metal seal ring and translated into a radial sealing force. Furthermore with increased pre-load, the bevel is closed and face to face contact is achieved at the outer wedge while most of the bolt pre-load is transferred as compressive forces between the flange faces at the heel.

• RCF Design and Verification

  • Yuhong Special Steel provides calculation service based on ASME section VIII Division 1, 2 and 3. Also we have ANSYS software engineers to do the analysis and design verification.

  • Flanges Types:

    • Slip On - SORF Flanges
    • Weld Neck - WNRF Flanges
    • Socket Weld - SWRF Flanges
    • Blind - BLRF Flanges
    • Lapped Joint Flanges
    • Screwed Flanges
    • Long Weld Neck Flanges
    • Reducing Flanges
    • Spectacle Flanges
    • Ring Joint Flanges

  • FLANGES STANDARD:

    • ASTM FLANGES
    • BS FLANGES
    • DIN FLANGES
    • IS FLANGES

  • Product Range:

    WNRF Flanges Size : 1/8" NB TO 48"NB.

    WNRF Flanges Class : 150#, 300#,400 #,600#,900#, 1500# & 2500 #.

    Stainless Steel WNRF Flanges: ASTM A 182, A 240

    Grade : F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H,904L, Duplex stainless steel UNS S31803, 2205, Super Duplex stainless steel UNS S32750

    Carbon Steel WNRF Flanges: ASTM A 105, ASTM A 181

    Alloy Steel WNRF Flanges : ASTM A 182, GR F1, F11, F22, F5, F9, F91

    Nickel Alloys WNRF Flanges : Monel 400 & 500, Inconel 600 & 625, Incolloy 800, 825, Hastelloy C22,C276

    Copper Alloys WNRF Flanges: Copper, Brass & Gunmetal

    WNRF Flanges Standard

    ANSI : ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48

    DIN : DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636, DIN2637, DIN2638, DIN2673

    B.S : BS4504 , BS4504, BS1560, BS10

  • Value Added Services

    • Hot Dip Galvanizing ,
    • Epoxy Coating.

  • Test Certificate

    Manufacturer Test Certificate as per EN 10204 / 3.1B

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