These KF-type bored blank flanges follow KF standards and have different flange sizes from KF-16 to KF-50. They are commonly used to build fore-line vacuum plumbing and process systems. Because they are simple to put together, they are frequently referred to as quick flange fittings. A circumferential clamp and centring ring creates the vacuum seal between the connecting flanges. An O-ring made of rubber elastomer is part of the centring ring. Quick flange fittings come in the following standard sizes: KF-10, KF-16, KF-25, KF-40, and KF-50. They are made up of corrosion-resistant stainless steel.

Part No	Size	Material	A	B	C	D
EV01006	KF10	304 S.S.	30	12.2	5	12.9
EV01007	KF16	304 S.S.	30	17.2	5	19.3
EV01008	KF25	304 S.S.	40	26.2	5	25.7
EV01009	KF40	304 S.S.	55	41.2	5	38.4
EV01010	KF50	304 S.S.	75	52.2	5	51