Maintain Design Flow

      One of the primary causes of reduced service life is low heat transfer fluid flow. This can lead to premature fluid breakdown and even heater damage due to hot spots, and these effects will worsen over time. Low flow also will result in less heat transfer at the heated equipment. Many systems include flowmeters and your system supplier can provide details relating actual flow to the flowmeter reading. An alternative method to monitor flow is by measuring differential pressure across the heater. Check that proper system flow is present and demonstrated by your supplier’s technician at start up. Investigate and cure as quickly as possible low flow during operation.