what's the of KF flange sizes?

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.

KF Flange Sizes

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

KF Centering Ring Dimensions

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

What's KF vacuum flange?

KF Flange Sizes

KF Centering Ring Dimensions

分享至微信分享