These straight reducer nipple vacuum fittings have one rotatable and one fixed 2-3/4 and 1-1/3 inch conflat (CF) flanges. ConFlat (CF) flanges are used for ultra-high vacuum applications. These fittings use a copper gasket and knife-edge flanges to achieve the high vacuum seal and can operate down to 10-13 torr (10-11 Pa) and can be heated to 450 °C for bake-out. North American flange sizes are given by flange outer diameter in inches: 1-1/3 ("mini conflat"), 2?, 4?, 6, 8, 10, 12, 13?, 14 and 16?. In Europe and Asia, sizes are given by tube inner diameter in millimeters: DN16, DN40, DN63, DN100, DN160, DN200, DN250. These vacuum fittings are made of corrosive resistant stainless steel.

Conflat Reducing Nipple, STRAIGHT, CF 2-3/4 inches to 1-1/3 inches, Stainless Steel

CF Flange Size: CF 2-3/4 inches to 1-1/3 inches

Common Dimensions: A = 2.50", Flange Size 1 OD = 1.33", FLange Size 2 OD =2.75"