KF Adapter
Sanitary Fittings

The KF Adapter is a specialized vacuum fitting designed to connect different types or sizes of flanges, pipe threaded fittings, or hoses.  It is also called the Hybrid Adapter.

Wellgrow can provide various KF adapters to meet specific needs, such as KF conical reducer, KF to male thread, KF to hose, and KF to ISO tubulated adapters.  These adapters are made of stainless steel 304 or 316L.

Material： Stainless Steel 304, 316L
Size： KF10 ~ KF50
Vacuum Range： Down to 10-8 Torr
Available Parts：
KF Conical Reducer Adapter SS304
KF Straight Reducer SS304
KF Male PT Adapter SS304
KF Male NPT Adapter SS304
KF Female PT Adapter SS304
KF Female NPT Adapter SS304
KF Rubber Hose Adapter SS304
KF To ASA Tubulated Adapter SS304
KF To ASA Tubulated Adapter, Groove O'ring SS304
KF To ISO Tubulated Adapter SS304
KF Quick Disconnect Adapter SS304
  • KF Conical Reducer Adapter SS304
    Model No. A B
    RA16-25 40 30
    RA16-40 55 30
    RA25-40 55 40
    RA16-50 75 30
    RA25-50 75 40
    RA40-50 75 55
  • KF Straight Reducer SS304
    Model No. A B
    SR16-25 KF25 KF16
    SR16-40 KF40 KF16
    SR25-40 KF40 KF25
    SR16-50 KF50 KF16
    SR25-50 KF50 KF25
    SR40-50 KF50 KF40
  • KF Male PT Adapter SS304
    Model No. A B C PT
    MA16-PT1/8 30 35 4.7 1/8"
    MA16-PT1/4 30 35 7.1 1/4"
    MA25-PT1/8 40 35 4.7 1/8"
    MA25-PT1/4 40 35 7.1 1/4"
    MA25-PT1/2 40 40 11.9 1/2"
    MA25-PT3/4 40 40 15.9 3/4"
    MA40-PT1/4 55 35 7.1 1/4"
    MA40-PT1/2 55 40 11.9 1/2"
    MA40-PT3/4 55 40 15.9 3/4"
    MA40-PT1 55 45 22.2 1"
    MA50-PT1/4 75 35 7.1 1/4"
    MA50-PT1/2 75 40 11.9 1/2"
    MA50-PT3/4 75 40 15.9 3/4"
    MA50-PT1 75 45 22.2 1"
  • KF Male NPT Adapter SS304
    Model No. A B C NPT
    MA16-NPT1/8 30 35 4.7 1/8"
    MA16-NPT1/4 30 35 7.1 1/4"
    MA25-NPT1/8 40 35 4.7 1/8"
    MA25-NPT1/4 40 35 7.1 1/4"
    MA25-NPT1/2 40 40 11.9 1/2"
    MA25-NPT3/4 40 40 15.9 3/4"
    MA40-NPT1/4 55 35 7.1 1/4"
    MA40-NPT1/2 55 40 11.9 1/2"
    MA40-NPT3/4 55 40 15.9 3/4"
    MA40-NPT1 55 45 22.2 1"
    MA50-NPT1/4 75 35 7.1 1/4"
    MA50-NPT1/2 75 40 11.9 1/2"
    MA50-NPT3/4 75 40 15.9 3/4"
    MA50-NPT1 75 45 22.2 1"
  • KF Female PT Adapter SS304
    Model No. A B C PT
    FA16-PT1/8 19.05 25 17 1/8”
    FA25-PT1/8 25.4 25 19 1/8”
    FA40-PT1/8 38.1 25 32 1/8”
    FA50-PT1/8 50.8 25 46 1/8”
    FA16-PT1/4 19.05 25 17 1/4”
    FA25-PT1/4 25.4 25 19 1/4”
    FA40-PT1/4 38.1 25 32 1/4”
    FA50-PT1/4 50.8 25 46 1/4”
  • KF Female NPT Adapter SS304
    Model No. A B C NPT
    FA16-NPT1/8 19.05 25 17 1/8”
    FA25-NPT1/8 25.4 25 19 1/8”
    FA40-NPT1/8 38.1 25 32 1/8”
    FA50-NPT1/8 50.8 25 46 1/8”
    FA16-NPT1/4 19.05 25 17 1/4”
    FA25-NPT1/4 25.4 25 19 1/4”
    FA40-NPT1/4 38.1 25 32 1/4”
    FA50-NPT1/4 50.8 25 46 1/4”
  • KF Rubber Hose Adapter SS304
    Model No. A B
    RHA-10 12.7 40
    RHA-16 19.05 40
    RHA-25 25.4 40
    RHA-40 38.1 50
    RHA-50 50.8 50
  • KF To ASA Tubulated Adapter SS304
    Model No. A B ASA
    TA40-A38 55 127 1-1/2”
    TA40-A50 55 152 2”
    TA40-A75 55 191 3”
    TA50-A38 75 127 1-1/2”
    TA50-A50 75 152 2”
    TA50-A75 75 191 3”
  • KF To ASA Tubulated Adapter, Groove O'ring SS304
    Model No. A B C ASA
    TA40-A50G 55 152 88.5 2”
    TA40-A75G 55 191 114.5 3”
    TA50-A50G 75 152 88.5 2”
    TA50-A75G 75 191 114.5 3”
  • KF To ISO Tubulated Adapter SS304
    Model No. A B C
    TA25-ISO63 95 40 25.4
    TA40-ISO63 95 55 38.1
    TA50-ISO63 95 75 50.8
    TA40-ISO80 110 55 38.1
    TA50-ISO80 110 75 50.8
    TA25-ISO100 130 40 25.4
    TA40-ISO100 130 55 38.1
    TA50-ISO100 130 75 50.8
  • KF Quick Disconnect Adapter SS304
    Model No. A B C Tube Size
    MDA16-1/4 30 33.30 6.60 1/4”
    MDA16-1/2 30 36.50 13.00 1/2”
    MDA16-3/4 30 46.00 19.40 3/4”
    MDA25-1/2 40 35.00 13.00 1/2”
    MDA25-3/4 40 44.45 19.30 3/4”
    MDA25-1 40 50.80 25.65 1”
    MDA40-1/2 55 35.00 13.00 1/2”
    MDA40-3/4 55 44.45 19.30 3/4”
    MDA40-1 55 50.80 25.65 1”
    MDA40-1-1/2 55 60.30 38.40 1-1/2”
    MDA50-1-1/2 75 60.30 38.40 1-1/2”
    MDA50-2 75 63.50 51.00 2”
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