CF Fittings

291 products

    The CF (ConFlat) flange is the most widely used for high vacuum and UHV applications. Many gauges, instruments, accessories and feedthroughs are available on this flange system.

    The seal mechanism is a knife-edge that is machined below the flange's flat surface. As the bolts of a flange-pair are tightened, the knife-edges make annular grooves on each side of a soft metal gasket. The extruded metal fills all the machining marks and surface defects in the flange, yielding a leak-tight seal. The CF seal operates from 760 torr (103 mbar) to < 1 x 10-13 Torr (< 1.3 x 10-13 mbar), and within the temperature range -196° C to 450° C (depending on material). Flange sizes in North America are normally referenced by their outside diameter (O.D.). However, in Europe and much of Asia, the nominal internal diameter (nominal I.D.) of the largest tube that can be welded to a bored flange is usually referenced in their nomenclature.

    ConFlat flanges are offered in four versions:

    • Fixed flange: is a one piece design where the bolt-hole orientation is fixed with respect to that fitting.
    • Rotatable flange: is comprised of two parts, an inner weld ring and outer bolt ring. This enables the bolt ring to rotate about the inner weld ring.

    Both Fixed and Rotatable flanges are available with your choice of through (clearance) holes or tapped holes.

    291 products
    OFHC Copper Seals Nano Vacuum Australia and New Zealand
    CF4.50" (DN63CF) OFHC Copper Seals
    Nano Vacuum
    $22.70
    OFHC Copper Seals Nano Vacuum Australia and New Zealand
    CF2.75” (DN35CF) OFHC Copper Seals
    Nano Vacuum
    $15.60
    CF 4-Way Crosses Nano Vacuum Australia and New Zealand
    CF1.33”(DN16CF) CF 4-Way Crosses
    Nano Vacuum
    $207.50
    CF Double Face Flanges Nano Vacuum Australia and New Zealand
    CF13.25” (DN275CF) CF Double Face Flanges (Bored)
    Nano Vacuum
    CF Double Face Flanges Nano Vacuum Australia and New Zealand
    CF13.25” (DN275CF) CF Double Face Flanges (Blank)
    Nano Vacuum
    CF Double Face Flanges Nano Vacuum Australia and New Zealand
    CF10.00” (DN200CF) CF Double Face Flanges (Bored)
    Nano Vacuum
    CF Double Face Flanges Nano Vacuum Australia and New Zealand
    CF10.00” (DN200CF) CF Double Face Flanges (Blank)
    Nano Vacuum
    CF Double Face Flanges Nano Vacuum Australia and New Zealand
    CF8.00” (DN160CF) CF Double Face Flanges (Bored)
    Nano Vacuum
    $347.80
    CF Double Face Flanges Nano Vacuum Australia and New Zealand
    CF8.00” (DN160CF) CF Double Face Flanges (Blank)
    Nano Vacuum
    $297.50
    CF Double Face Flanges Nano Vacuum Australia and New Zealand
    CF6.75” (DN125CF) CF Double Face Flanges (Bored)
    Nano Vacuum
    $527.00
    CF Double Face Flanges Nano Vacuum Australia and New Zealand
    CF6.75” (DN125CF) CF Double Face Flanges (Blank)
    Nano Vacuum
    $427.20
    CF Double Face Flanges Nano Vacuum Australia and New Zealand
    CF6.00” (DN100CF) CF Double Face Flanges (Bored)
    Nano Vacuum
    $268.00
    CF Double Face Flanges Nano Vacuum Australia and New Zealand
    CF6.00” (DN100CF) CF Double Face Flanges (Blank)
    Nano Vacuum
    $307.00
    CF Double Face Flanges Nano Vacuum Australia and New Zealand
    CF4.62” (DN75CF) CF Double Face Flanges (Bored)
    Nano Vacuum
    $179.00
    CF Double Face Flanges Nano Vacuum Australia and New Zealand
    CF4.62” (DN75CF) CF Double Face Flanges (Blank)
    Nano Vacuum
    $191.00
    CF Double Face Flanges Nano Vacuum Australia and New Zealand
    CF4.50” (DN63CF) CF Double Face Flanges (Bored)
    Nano Vacuum
    $149.50
    CF Double Face Flanges Nano Vacuum Australia and New Zealand
    CF4.50” (DN63CF) CF Double Face Flanges (Blank)
    Nano Vacuum
    $149.50
    CF Double Face Flanges Nano Vacuum Australia and New Zealand
    CF3.38" (DN50CF) CF Double Face Flanges (Bored)
    Nano Vacuum
    $111.00
    CF Double Face Flanges Nano Vacuum Australia and New Zealand
    CF3.38" (DN50CF) CF Double Face Flanges (Blank)
    Nano Vacuum
    $111.00
    CF Double Face Flanges Nano Vacuum Australia and New Zealand
    CF2.75” (DN35CF) CF Double Face Flanges (Bored)
    Nano Vacuum
    $77.00
    CF Double Face Flanges Nano Vacuum Australia and New Zealand
    CF2.75” (DN35CF) CF Double Face Flanges (Blank)
    Nano Vacuum
    $77.00
    CF Double Face Flanges Nano Vacuum Australia and New Zealand
    CF2.12" (DN25CF) CF Double Face Flanges (Bored)
    Nano Vacuum
    $77.15
    CF Double Face Flanges Nano Vacuum Australia and New Zealand
    CF2.12" (DN25CF) CF Double Face Flanges (Blank)
    Nano Vacuum
    $74.50
    CF Double Face Flanges Nano Vacuum Australia and New Zealand
    CF1.33" (DN16CF) CF Double Face Flanges (Bored)
    Nano Vacuum
    $42.85
    CF Double Face Flanges Nano Vacuum Australia and New Zealand
    CF1.33" (DN16CF) CF Double Face Flanges (Blank)
    Nano Vacuum
    $42.85
    CF Blank Flanges Rotatable Nano Vacuum Australia and New Zealand
    CF16.50” (DN350CF) CF Blank Flanges Rotatable
    Nano Vacuum
    CF Blank Flanges Rotatable Nano Vacuum Australia and New Zealand
    CF16.50” (DN350CF) CF Blank Flanges Rotatable
    Nano Vacuum
    CF Blank Flanges Rotatable Nano Vacuum Australia and New Zealand
    CF16.50” (DN350CF) CF Blank Flanges Rotatable
    Nano Vacuum
    $3,340.00
    CF Blank Flanges Rotatable Nano Vacuum Australia and New Zealand
    CF14.00” (DN300CF) CF Blank Flanges Rotatable
    Nano Vacuum
    CF Blank Flanges Rotatable Nano Vacuum Australia and New Zealand
    CF14.00” (DN300CF) CF Blank Flanges Rotatable
    Nano Vacuum
    CF Blank Flanges Rotatable Nano Vacuum Australia and New Zealand
    CF14.00” (DN300CF) CF Blank Flanges Rotatable
    Nano Vacuum
    $1,555.00
    CF Blank Flanges Rotatable Nano Vacuum Australia and New Zealand
    CF13.25” (DN270CF) CF Blank Flanges Rotatable
    Nano Vacuum
    CF Blank Flanges Rotatable Nano Vacuum Australia and New Zealand
    CF13.25” (DN270CF) CF Blank Flanges Rotatable
    Nano Vacuum
    $1,570.50
    CF Blank Flanges Rotatable Nano Vacuum Australia and New Zealand
    CF13.25” (DN270CF) CF Blank Flanges Rotatable
    Nano Vacuum
    $1,570.00
    CF Blank Flanges Rotatable Nano Vacuum Australia and New Zealand
    CF12.00” (DN250CF) CF Blank Flanges Rotatable
    Nano Vacuum
    CF Blank Flanges Rotatable Nano Vacuum Australia and New Zealand
    CF12.00” (DN250CF) CF Blank Flanges Rotatable
    Nano Vacuum
    $1,510.00
    CF Blank Flanges Rotatable Nano Vacuum Australia and New Zealand
    CF12.00” (DN250CF) CF Blank Flanges Rotatable
    Nano Vacuum
    $1,464.00
    CF Blank Flanges Rotatable Nano Vacuum Australia and New Zealand
    CF10.00" (DN200CF) CF Blank Flanges Rotatable
    Nano Vacuum
    CF Blank Flanges Rotatable Nano Vacuum Australia and New Zealand
    CF10.00" (DN200CF) CF Blank Flanges Rotatable
    Nano Vacuum
    $528.50
    CF Blank Flanges Rotatable Nano Vacuum Australia and New Zealand
    CF10.00" (DN200CF) CF Blank Flanges Rotatable
    Nano Vacuum
    $733.00

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