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      Oven Exhaust

      Published time: 2017-04-07 08:39:07 Reading times:13

      Cure ovens must be exhausted to remove solvents, gases, and the by-products of the combustion. Oven exhaust also creates a negative environment in the oven enclosure, which helps to contain the oven atmosphere at the product openings.

      The amount of air exhausted from the oven is based on the amount of solvent that is carried into the oven and the by-products of combustion. The exhaust volume must be high enough to prevent a loss of gases from the openings. Excess exhaust will unnecessarily increase the cost of oven operation.

      Exhaust is required to prevent the buildup of solvent vapors to explosive levels. Safety codes require that solvent vapor levels should not exceed 25% of the lower explosive limit (LEL). 10,000 ft3 (280 m3) of fresh air must be supplied for each gallon (3.79 L) of solvent evaporated.

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