Features Designed to blank off pipelines, valves, and pumps, or as an inspection cover This GRAINGER APPROVED blind flange features 304 stainless steel construction for very good corrosion resistance. Model is sometimes referred to as blanking flange and is ideal for use with air, water, oil, natural gas, and steam. Connection Surface / Raised Face Nominal Pipe Size / 2 in Fitting Connection Type / Flanged x Blind Flange Outside Diameter / 6 in Pipe Fitting Material / 304 Stainless Steel, Stainless Steel Material Grade / 304 Class / Class 150 Maximum Operating Pressure / 150 psi Temp. Range / -60 Degrees to 450 Degrees F Number of Bolt Holes / 4 Color / Silver Standards / ASME B16.5, ASTM A182