Ideal Vacuum | ASA 4.25 / ANSI 1 Blank Flange, with O-Ring Groove, Not Bored, Not Rotatable, 4.25 in OD, 3.125 in BCD, Four 0.625 in ID Bolt Holes, 304 Stainless Steel
Ring Type Joint Flange Manufacturers, ASME B16.5 RTJ Flange
Backing/Back up Flange, Stainless Steel Backing Ring - Manufacturers
Bleed Ring Flanges Manufacturer, ASME B16.5 Drip Ring, Bleed Ring, Vent Ring Dimensions
Ring Type Joint Flange Manufacturers, ASME B16.5 RTJ Flange
1/2 inch Stainless Steel Swivel Ring Flange
AWWA Class SB Stainless Steel Ring Flanges - API International, Inc.
Ring Type Joint Flanges (RTJ)
AWWA Class F Steel Ring Flanges - API International, Inc.
ANSI / ASME B16.5 Ring Type Joint Flanges Manufacturer, RTJ Flange Dimensions