"PRAIRE AIR COOLER CG 48-73;SHELL/TUBE ASSY MATERIALS: SHELL IS CRES T304,TUBES ARE B359 715 (70/30 CUNI), TUBESHEETS ARE A240T304 CLAD WITH 70/30 CUNI, BAFFLES ARE CRES T304, TIE RODS ARE CRES T304, SPACERS ARE CRES T304. FLUID CIRCULATED: SHELL SIDE AIR+ WATER VAR, TUBE SIDE SEA WATER. NUMBER OF PASSES IS ONE PER SIDE (SHELL/TUBE). DESIGN PRESSURE (PSIG): SHELL SIDE IS 250, TUBE SIDE IS 50. TEST PRESSURE(PSIG): SHELL SIDE IS 375, TUBE SIDE IS 100. OTHER ITEMS AND MATERIALS: WATERBOX(BRONZE),PLUG/PROTECTOR(BRONZE),GASKET(NON-ASO-MIL-G-24696),STUD(CRES-FED-STD-66),NUT HEX(CRES-FED-STD-66),STRAP SLIDING(CS-ASTM A2850),LINER(NON-ASO-MIL-G-24696), SUPPORT SLIDING(CS-ASTM A2850), CAP SCREW HEX(CS-SAE-J429-5),NUT HEX(CS-ASTM A194),IDENT PLATE(BRASS-QQ-8-613),DRIVE SCREW(STN STL)"