Watlow FIREROD® Renal Dialysis Machine Case History Application Renal dialysis machines purify the blood in patients whose kidneys have failed. During the kidney dialysis procedure, it’s critical that body temperature is regulated in order to prevent the occurrence of thermal shock. A renal dialysis machine implements a three-step thermal process that typically includes a 90°C (194°F) disinfection cycle, followed by a 37°C (98.6°F) cycle to clean the blood and a 90°C (194°F) system cleaning cycle at the end of usage each day. Problem To ensure temperature stability and meet safety requirements, the application required an in-line immersion heater that wouldn’t touch the perimeter of the plastic water transport tube. If the plastic tubing were to make contact with the heater, the tube wou

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