These KF-type 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. KF Blank Flange \n 

Part No.	Size	\n A	\n B	Material
EV01001	KF10	30	12.2	304 S.S.
EV01002	KF16	30	17.2	304 S.S.
EV01003	KF25	40	26.2	304 S.S.
EV01004	KF40	55	41.2	304 S.S.
EV01005	KF50	75	52.2	304 S.S.