Heat Exchanger Heat Dissipation Capacity for Water 525 000 BtuH Heat Dissipation Capacity for Oil 42 700 BtuH Total Surface Area 9.1 sq ft Shell Outside Diameter 5 1/8 in Tube Length 18 3/4 in Shell Material Brass Tube Material Copper Number of Passes 4 Shell Maximum Pressure Rating 300 psig Shell Maximum Operating Temperature 300 Degrees F Tube Maximum Pressure Rating 150 psig Tube Maximum Operating Temperature 300 Degrees F Fluid Compatibility Glycol Oil Steam Water