KF Flange
Sanitary Fittings

The KF Flange is a vacuum flange of the KF standard and an essential part of vacuum fittings.  The KF vacuum flange is used at the end of tubes to connect vacuum chambers, tubing, or vacuum pumps to each other.

Wellgrow Industries Corp. provides several types of KF flanges, such as KF blank flanges and KF bored flanges.  These flanges are made of stainless steel 304 or 316L, both of which offer excellent corrosion resistance, high tensile strength, and durability.

Material： Stainless Steel 304, 316L
Size： KF10 ~ KF50
Vacuum Range： 10-9 Torr
Available Parts：
KF Blank Flange SS304
KF Bored Flange SS304
KF Socket Weld Flange SS304
  • KF Blank Flange SS304
    Model No. A B C D
    BL-10 30 5.1 12.2 2.5
    BL-16 30 5.1 17.2 2.5
    BL-25 40 5.1 26.2 2.5
    BL-40 55 5.1 41.2 2.5
    BL-50 75 5.1 52.2 2.5
    BL-63 87 11 70.0 2.5
    BL-80 114 11 83.0 2.5
    BL-100 134 11 102.0 2.5
    BL-160 190 11 153.0 2.5
  • KF Bored Flange SS304
    Model No. A B C D E
    BF-10 30 5.1 12.2 2.5 12.9
    BF-16 30 5.1 17.2 2.5 19.3
    BF-25 40 5.1 26.2 2.5 25.7
    BF-40 55 5.1 41.2 2.5 38.4
    BF-50 75 5.1 52.2 2.5 51.0
    BF-63 87 11.0 70.0 2.5 63.7
    BF-80 114 11.0 83.0 2.5 76.4
    BF-100 134 11.0 102.0 2.5 101.8
    BF-160 190 11.0 153.0 2.5 152.9
  • KF Socket Weld Flange SS304
    Model No. A B C D E
    SWF-10 30 12.7 12.2 16.5 13.0
    SWF-16 30 12.7 17.1 22.1 19.3
    SWF-25 40 12.7 26.2 29.0 25.7
    SWF-40 55 12.7 41.3 44.5 38.4
    SWF-50 75 12.7 52.3 57.2 51.1
    SWF-63 87 12.7 70.0 67.5 63.7
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