KF flanges are equal to the flanges known as KF (or Klein Flansche) by the International Standards Organization.
- KF fittings are used for through or foreline vacuum plumbing and simple HV (10-8 Torr) chambers
- Elastomeric o-ring limits the connection's temperature range and ultimate vacuum
- 304L stainless steel fittings work in adverse temperatures and corrosive conditions
- Aluminum or brass fittings work in more general applications
Ordering Table
All dimensions listed in the table below, unless otherwise stated, are in inches.
All dimensions listed in the table below, unless otherwise stated, are in millimeters.
(Click column headers to sort data)
Flange Size/OD | Type | Flange Material | Drawing | Overall Length | Stub Diameter | Description |
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Part Number | Price | In Stock | Add To Cart | Accessories | ||||
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Flange Size/OD | Type | Flange Material | Drawing | Overall Length | Stub Diameter | Description |
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Part Number | Price | In Stock | Add To Cart | Accessories | ||||
KF10 (1.18" OD) |
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0.75 | 0.75 | FLANGE,BLANK STUB,ALUM,QF10 |
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QF10-050-UA | $10.50 | ||||||||
KF16 (1.18" OD) |
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0.75 | 0.75 | FLANGE,BLANK STUB,ALUM,QF16. |
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QF16-075-UA | $10.50 | ||||||||
KF25 (1.57" OD) |
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0.75 | 1.00 | FLANGE,BLANK STUB,ALUM,QF25. |
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QF25-100-UA | $12.25 | ||||||||
KF40 (2.16" OD) |
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1.00 | 1.50 | FLANGE,BLANK STUB,ALUM,QF40 |
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QF40-150-UA | $17.10 | ||||||||
KF50 (2.95" OD) |
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1.00 | 2.00 | FLANGE,BLANK STUB,ALUM,QF50. |
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QF50-200-UA | $24.40 |
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Flange Size/OD | Type | Flange Material | Drawing | Overall Length | Stub Diameter | Description |
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Part Number | Price | In Stock | Add To Cart | Accessories | ||||
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Flange Size/OD | Type | Flange Material | Drawing | Overall Length | Stub Diameter | Description |
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Part Number | Price | In Stock | Add To Cart | Accessories | ||||
KF10 (29.97 mm OD) |
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19.050 | 19.050 | FLANGE,BLANK STUB,ALUM,QF10 |
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QF10-050-UA | $10.50 | ||||||||
KF16 (29.97 mm OD) |
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19.050 | 19.050 | FLANGE,BLANK STUB,ALUM,QF16. |
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QF16-075-UA | $10.50 | ||||||||
KF25 (39.88 mm OD) |
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19.050 | 25.400 | FLANGE,BLANK STUB,ALUM,QF25. |
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QF25-100-UA | $12.25 | ||||||||
KF40 (54.86 mm OD) |
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25.400 | 38.100 | FLANGE,BLANK STUB,ALUM,QF40 |
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QF40-150-UA | $17.10 | ||||||||
KF50 (74.93 mm OD) |
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25.400 | 50.800 | FLANGE,BLANK STUB,ALUM,QF50. |
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QF50-200-UA | $24.40 |
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Accessories Table
Description | For | Per Package |
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Part Number | Price | In Stock | Add Item | ||||
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Description | For | Per Package |
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Part Number | Price | In Stock | Add Item | ||||
Cast Clamps (Aluminum) | KF10, KF16 Flanges | 1 |
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Cast Clamps (Aluminum) | KF25 Flanges | 1 |
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Cast Clamps (Aluminum) | KF40 Flanges | 1 |
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Cast Clamps (Aluminum) | KF50 Flanges | 1 |
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Lever Clamps (Aluminum) | KF10, KF16 Flanges | 1 |
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Lever Clamps (Aluminum) | KF25 Flanges | 1 |
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Lever Clamps (Aluminum) | KF40 Flanges | 1 |
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Centering Ring (Aluminum with Fluorocarbon O-Ring) | KF10 Flanges | 1 |
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Centering Ring (Aluminum with Fluorocarbon O-Ring) | KF16 Flanges | 1 |
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Centering Ring (Aluminum with Fluorocarbon O-Ring) | KF25 Flanges | 1 |
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Centering Ring (Aluminum with Fluorocarbon O-Ring) | KF40 Flanges | 1 |
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Centering Ring (Aluminum with Fluorocarbon O-Ring) | KF50 Flanges | 1 |
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