Carbon steel heater tubes for a wood drying kiln are experiencing selective corrosion/erosion at the 12 o'clock position from the steam side (bore). The tubes have aluminium fins.
The steam is supplied from a boiler using correct chemical treatment (supposedly) and is at a temperature of 180C and 1300kPa.
All water test results look OK apart from condensate pH being down to 5.7 on occasions. The water chemistry is checked monthly.
The steam is supplied from a boiler using correct chemical treatment (supposedly) and is at a temperature of 180C and 1300kPa.
All water test results look OK apart from condensate pH being down to 5.7 on occasions. The water chemistry is checked monthly.
