These KF 4-way cross vacuum fittings follow KF standards. They are commonly used to build foreline vacuum plumbing and process systems. They are often called quick flange fittings because they are quick to assemble. A circumferential clamp and centering ring form the vacuum seal between the connecting flanges. The centering ring contains a rubber elastomer o-ring. The standard sizes for quick flange fittings are KF-10, KF-16, KF-25, KF-40, and KF-50. They are made of corrosive-resistant stainless steel. \n

Part No.	Size	Material	A	B	C	D
EV01057	KF16	304 S.S.	40	19.05	30	80
EV01058	KF25	304 S.S.	50	25.4	40	100
EV01059	KF40	304 S.S.	65	38.1	55	130
EV01060	KF50	304 S.S.	70	50.8	75	140