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Boiler Bulging

  • Formation of layer of scales on the furnace wall at the water side can cause overheating and bulging defect on the furnace shell.
  • Bulging in water tube is due to calcium scale deposition on tube walls which cause improper heat transfer.
  • In smoke tube due to carbon deposits bulging is caused.
  • Low water level in boiler.
  • Misalignment of burner can cause overheating which will further cause bulging.
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