Heat Exchanger Heat Dissipation Capacity for Water 3 100 000 BtuH Heat Dissipation Capacity for Oil 516 000 BtuH Total Surface Area 83 sq ft Shell Outside Diameter 8 1/8 in Tube Length 54 5/8 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