Author: FOSHAN BOWAH VACUUM EQUIPMENT CO.,LTD
Click:
KF, also known as QF, is a kind of quick-release flange used in vacuum systems. It consists of the following components: two symmetrically distributed KF flanges, O-Rings, centering rings, and clamps. No additional tools are required to loosen or compress the coupling by simply turning the disc nut by hand.
KF vacuum flange head is a small size quick flange joint. Nominal diameter sizes include DN 10, 16, 25, 40, and 50.
KF vacuum flange is usually composed of a flange, clamp, O-Ring, and centering ring.
KF(QF) is suitable for low-vacuum, medium-vacuum, and high-vacuum pipelines. Its nominal diameter is 10-50, and it is a clamping vacuum flange with an O-ring seal.
DN |
d1 | d2 | d3 |
10 |
14 |
12.2 |
30 |
16 | 20 | 17.2 | 30 |
25 | 28 | 26.2 | 40 |
40 | 44.5 |
41.2 |
55 |
50 | 61 |
52.2 |
75 |
DN |
d1 | d2 | d3 |
10 | 10 |
12 |
15.3 |
16 | 16 | 17 | 18.5 |
25 | 25 | 26 | 28.5 |
40 | 40 |
41 |
43 |
50 | 50 |
52 |
55.5 |
O-ring
DN | D | S |
10 |
15 |
5 |
16 | 18 | 5 |
25 | 28 | 5 |
40 |
42 |
5 |
50 | 55 | 5 |