KF Nipple
Sanitary Fittings

The KF Nipple is a type of vacuum fitting consisting of KF flanges welded onto both sides of a tube, while a KF Half Nipple consists of a KF flange welded onto one side of a tube.  They are used to connect vacuum tubing or equipment.

We offer several short and long half nipples available in USA, Europe, and Japan standards for different tube outside diameters.  They are made of stainless steel 304 and 316L, providing excellent corrosion resistance and durability.

Material： Stainless Steel 304, 316L
Size： KF10 ~ KF50
Vacuum Range： Down to 10-8 Torr
Available Parts：
KF Nipple SS304
KF Half Nipple Short - USA SS304
KF Half Nipple Short - Europe SS304
KF Half Nipple Short - Japan SS304
KF Half Nipple Long - USA SS304
KF Half Nipple Long - Japan SS304
  • KF Nipple SS304
    Model No. A B C
    NI-16 30 80 19.05
    NI-25 40 100 25.40
    NI-40 55 130 38.10
    NI-50 75 140 50.80
  • KF Half Nipple Short - USA SS304
    Model No. A B C
    SWFA-10 30 12.7 12.70
    SWFA-16 30 12.7 19.05
    SWFA-25 40 12.7 26.40
    SWFA-40 55 19.1 38.10
    SWFA-50 75 19.1 50.80
  • KF Half Nipple Short - Europe SS304
    Model No. A B C
    SWFE-10 30 20 14
    SWFE-16 30 20 20
    SWFE-25 40 20 28
    SWFE-40 55 20 45
    SWFE-50 75 20 57
  • KF Half Nipple Short - Japan SS304

    F1

    F2

    Model No. Type A B C D
    SWFJ-25-27 F1 40 20 27.2 -
    SWFJ-40-42 F1 55 20 42.7 -
    SWFJ-50-60 F1 75 20 60.5 -
    SWFJ-25-34 F2 40 20 34.0 32
    SWFJ-40-48 F2 55 20 48.6 45
  • KF Half Nipple Long - USA SS304
    Model No. A B C
    LWFA-10 30 40 12.70
    LWFA-16 30 40 19.05
    LWFA-25 40 40 25.40
    LWFA-40 55 40 38.10
    LWFA-50 75 40 50.80
  • KF Half Nipple Long - Japan SS304

    F1

    F2

    Model No. Type A B C D
    LWFJ-25 F1 40 50 34.0 32
    LWFJ-40 F1 55 50 48.6 45
    LWFJ-50 F2 75 50 60.5 -
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