Thermal Performance for Water & Air Pressure Drop for Air Flow Technical Drawings Part Number Configuration   730 Family Main Page Model 730 Model 731 Model 732 Model 733 Model 734 Model 735 Model 736 Model 737	Model 737 Stainless Steel Tubes and Copper Fins The ultra-clean 737 series is appropriate for applications that employ deionized water or other aggressive fluids as a coolant. The Thermatron 737 Series Heat Exchanger couples an efficiency approaching that of our all-copper 727 design in a high-reliability 22" x 22" heat transfer area. Thermal capability ranges up to 340 Watts / ºC, depending on configuration. Each 737 Unit utilizes: Thermatron's proprietary high-efficiency fin design 316 Stainless Steel wetted surfaces Precision TIG welded 100% Pressure Test Computer-grade reliability Internally cleaned & corrosion protected Externally coated for corrosion protection. Internal passivation available The 737 series is available in a large number of preexisting designs, or can be customized to your specific requirements, usually with no engineering / design charge. The 737 series can be fitted with numerous standard or custom fitting and fan combinations.