A figure-8 blank (also called a Spectacle Blind Flange) is a pressure-retaining plate with one solid end and one open end connected with a web or tie bar. Specifications: Size: 1/2” to 60”, DN 12mm to DN 1500mm Pressure class: Class 150 to Class 2,500, PN 2.5 to PN 250 Facing: RF / RTJ Material: Cabon steel: A105, A350 LF2 Stainless steel: A182 F304/F304L/F316/F316L/F321 Alloy steel: F11, F12 Packing: plywood case and plywood pallet Keywrods: Spectacle Blind Flanges, Spectacle Blind Flange, Spectacle Flanges, Spectacle Blind Flanges manufactory Standards, Dimensions & Weight ASME B16.48 Class 150 ASME B16.48 Class 300 ASME B16.48 Class 600 ASME B16.48 Class 900 ASME B16.48 Class 1500 ASME B16.48 Class 2500 Key Features: Can be attached to the pipe without welding (sometimes an additional seal weld is used as well) Ideal for higher pressure and temperature applications for small pipe sizes Not recommended for larger loads, especia