Features Commonly used to blank off pipelines, valves, and pumps, or as an inspection cover, this GRAINGER APPROVED blind flange allows you to bolt 2 flanges together with a gasket to form a tight seal that still eases access to the piping system. This model is sometimes referred to as “blanking flange” and is for use with air, water, oil, natural gas, or steam. Specific Fitting Shape / Blind Flange Connection Surface / Raised Face Nominal Pipe Size / 6 in Fitting Connection Type / Flanged x Blind Flange Outside Diameter / 11 in Flange Thickness / 15/16 in Pipe Fitting Material / Steel Finish/Coating / Anodized Class / Class 150 For Pipe Schedule / 40 Maximum Operating Pressure / 150 psi Temp. Range / -29 Degrees to 425 Degrees F Number of Bolt Holes / 8 Bolt Circle Diameter / 7/8 in Bolt Hole Diameter / 3/4 in Color / Black Application / Air, Natural Gas, Non-Potable Water, Potable Water, Propane, Steam Standards / ASME B16.3, ASME B16.4, ASTM A105, ASTM A197, ASTM A47, FM Approved, UL Listed