These KF-KF Tee Reducer 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 E F EV01051 KF25/16 304 S.S. 50 40 40 30 25.4 19.05 EV01052 KF40/16 304 S.S. 65 40 55 30 38.1 19.05 EV01053 KF40/25 304 S.S. 65 50 55 40 38.1 25.4 EV01054 KF50/16 304 S.S. 70 50 75 30 50.8 19.05 EV01055 KF50/25 304 S.S. 70 65 75 40 50.8 25.4 EV01056 KF50/40 304 S.S 70 65 75 55 50.8 38.1
