Blind Flange 20 Inch Class 300 Posted on July 7, 2020 Version Download 5 File Size 141.81 KB File Count 1 Create Date July 7, 2020 Last Updated July 7, 2020 Download Description Blind Clange Class 300 Reference : ANSI ASME B16.5 Flanges Size NPS : 20" Size DN : 500 mm. Blind Flange Thickness : 62 mm. Weight : 230 kg. StudBolt Size : 1 1/4" UNC Or (M33) x 205 Long No. of Bolts : 24 EA. Holes Diamater : 34.925 mm. Related Blind Flange 20 Inch Blind Flange 500mm