NKE Sanitary Stainless Steel Tubes, Valves, and Fittings
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KF真空接头套
KF真空接头套 (Klein Flansche)
KF接头包括一个夹钳，两个法兰和一个密封圈的定心环。
夹钳采用SS304材质或铝，法兰和定心环采用SS 304或SS 316L材质。
密封圈用于EPDM和Viton。
识别KF接头的最简单方法是使用O形密封圈。
它们用于存在真空压力的系统中。
KF Flange
The KF Flanges are the end fittings that will be welded to tubes, fittings and valves. It comes in different lengths but the most common are 12.7mm and 30mm, longer flanges make it easier to be orbital welded. Available in SS 304 and SS 316L.
KF O Ring
The KF O ring sits in the middle of two KF Flanges to act as a seal to prevent leakages. Material is usually Viton which handles a wide range of chemicals and temperature (about -20C to 180C).
KF Clamp
The KF Clamp is used to fasten two KF Flanges together. The clamp compresses the flange and seal to create a seal.
The clamp ring comes with a wing nut so no tools are required, different types that are fastened by bolts and nuts are also available but are not so common. Available in aluminium and SS 304.
KF Blank Flange
The KF Blank Flange is just a KF Flange without an opening, it can replace the KF flange to act as a cover to block flow. It is usually used for leak testing, isolating a section for maintenance, and capping a spare port. Available in SS 304 and SS 316L.
KF Centering Ring
The KF Centering Ring acts as a frame for the O Ring. An outer centering ring is also available if the KF Flange is to handle pressure as well as vacuum.
Available in SS 304 and SS 316L. Centering Rings can also come with mesh to act as a backup filter.
KF Flange Dimensions | SS304 / SS316L | KF / NW / QF Series | High Vacuum Rated
Size | Welding Neck OD (mm) | Flange OD (mm) | Length (mm) |
|---|---|---|---|
KF10 | 12.7 / 14 | 30 | 12.7 / 30 |
KF16 | 19.06 / 20 | 30 | 12.7 / 30 |
KF25 | 25.4 / 28 | 40 | 12.7 / 30 |
KF40 | 38.1 / 44.5 | 55 | 12.7 / 30 |
KF50 | 50.8 / 54 | 75 | 12.7 / 30 |