These 90 degree elbow vacuum fittings have two rotatable 4-1/2 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”), 2¾, 4½, 6, 8, 10, 12, 13¼, 14 and 16½. 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.
Hebei Haihao group can manufacture Plate Flange(PL Flange), Weld Neck Flange(WN Flange), Socket Weld Flange, Slip On Flange(SO Flange), Blind Flange, Lap Jiont Falnge(Loose Flange), Threaded Flange , Figure 8 Flange, Integral Flange etc.We supplys a variety of pipe flanges to satisfy our customers’ specifica requirements,which include different size,different schedule,different pressure and different finish faces. Our products are produced strictly according to the required standard. Our raw material for flanges all are purchased from big steel companies which can make sure the material in a high quality.
We sincerely welcome customers domestic and abroad to visit us for cooperation and development.