Ideal Vacuum | ASA 6 Inch Blank Flange with O-Ring Groove, Not Bored, Not Rotatable, 11 in OD, 9.5 BCD, 0.81 in Hole Diameter, 8 Holes, 304 Stainless Steel
RTJ Flange (Ring Type Joint): Definition, Applications, and Repair - Enerpac Blog
Ideal Vacuum | ASA 8 Inch Blank Flange with O-Ring Groove, Not Bored, Not Rotatable, 13.50 in OD, 11.75 in BCD, 0.81 in Hole Diameter, 8 Holes, 304 Stainless Steel
Retain Ring Flange - Non-Welded Piping | Chase Resource