We are offering water cooler.Tubem.o.c: sa 789 uns 31803 (duplex steel)size: u tubes 19.05 x 2.11 x 5869 st. Lg. Tubesheetm.o.c: sa 266 cl 2 with duplex overlaysize: 1854 x 360 thktotal weight of equipment: 42m tonshydro testing: shell side-12 kgcm2(g);tube side-320 kgcm2(g) tube to tube sheet joint strength welding and light expansionhelium leak test done to check the tube to tube sheet weld joint before expansion third party inspection: lloyds register aisa