MARINE HEAT EXCHANGER

1. Casing with tubes removed 2. Tubes removed from cooler before cleaning 3. Casing after ultrasonic cleaning 4. Header plate after cleaning 5. Header plate soldered back to casing 6. Tubes cleaned and tinned ready to be re-installed 7. Tubes back in casing and resoldered (1/4-3/8 inch thick).  Machined area of casing 8. Tube protector inserted to salt water side and soldered to tubes 9. Completed Gray Marine heat exchanger 10. Completed Gray Marine heat exchanger