ASTM A516 GR.70 Spectacle Blind Flange, 8Inch, CL300, Raise Face End ASME B16.48 Standards, Figure 8 spectacle blind flange for positive pipeline isolation, carbon steel line blind to cut off or open piping flow, ideal for oil, gas and chemical industrial pipeline maintenance safety lockout.
Executive Standard: ASME B16.48 Main Application Scenarios
Widely used in petroleum, natural gas, chemical plants, refineries, power stations and long-distance transmission piping systems. It serves as mandatory safety isolation component for flanged pipe joints transporting oil, gas, water and chemical media