"19.400 IN. LG ONE SIDE,16.600 IN. LG OTHER SIDE BY 12.200 IN. WD FLANGE;PROOF PRESSURE 535 PSIG AT 1064 DEG F BLEED AIR CIRCUIT;90 PSIG AT 1067 DEG F SERVICE AIR CIRCUIT;BURST PRESSURE 730 PSIG AT 1064 DEG F BLEED AIR CIRCUIT,150 PSIG AT 1067 DEG F SERVICE AIR CIRCUIT;OPERATING PRESSURE 155 PSIG AT 1064 DEG F BLEED AIR CIRCUIT,60 PSIG AT 1067 DEG F SERVICE AIR CIRCUIT"