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.