This is a one-side quick disconnect flange set for rapid access into 2" O.D vacuum chamber through flanged port. Quick-Disconnect flanges are a fast and convenient method for coupling and uncoupling metal and glass tubing. SPECIFICATIONS Type (Please select in options bar) QuickDisconnect Flange QuickDisconnect Flange with KF50-40 Adaptor QuickDisconnect Flange with right-angle valve Item Number FL-50KF50-QD FL-50KF50-QD40A FL-50KF50-QD40V Package included One KF50 quick-disconnect flange set One KF50 quick disconnect flange set One KF50 clamp set One KF50 to KF40 adaptor One KF50 quick-disconnect flange set One KF50 clamp set One KF40 clamp set One KF50 to KF40 adaptor One KF40 to KF40 right-angle valve Structure Click to enlarge Click to enlarge Click to enlarge Features Vacuum level: 10E-5 torr by molecular pump and 10E-2 torr by a mechanical pump Temperature Range: -20ºC to 150ºC Made of 304ss Fittings Leak Test: 2x10-10 cc/sec He Optional You may order a single end flange with the gas inlet port and thermal couple insert ( click picture below left to order ) Due to the weight of the QuickDisconnect flange with the Right-Angle valve, we recommend the following support: Adjustable Tube Support (320 - 510mm H) for KF25 Flanges - FLS-KF25 You may need to order a KF-50 - KF-40 adaptor to connect to the vacuum pump MTI supplied Warning: Must put thermal block inside the tube during heating to avoid o ring on the flange damaged, which not be covered by the warranty ( click pic to order ) Related Product Click here to choose flange for tube from 42mm to 11" Vacuum Pump & High Vacuum Station