FLANGE STANDARD PRESSURE RATING TYPE FACING MATERIAL
ANSI B16.5 Flange CLASS 150 300 400 600 900 1500 2500 LBS SO WN SW TH LJ BL LWN RF ASTM SA105/105N
FF A350 LF2 CL1/CL2
RTJ A694 F45/52/65,
ANSI B16.47-A MSS Flange CLASS 150 300 400 600 900 LBS WN BL s235jr C22.8;