Flange Faces - Raised Face (RF), Flat Face (FF), Ring-Type Joint (RTJ), Male-and-Female (MF), Tongue-and-Groove (TG)
Stainless Steel Backing Ring Flange Manufacturers, Back up Flange Dimensions, Backing Flange
Ring Type Joint Flanges (RTJ)
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
ANSI / ASME B16.5 Ring Type Joint Flanges Manufacturer, RTJ Flange Dimensions
What is a Ring Type Joint (RTJ) Flange? - Coastal Flange