Extrusion Film Casting Case History

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A company engaged in the manufacturing of synthetic resins, plastics materials, and non vulcanizable elastomers, faced a danger of an explosion from the buildup of solvent vapors in the oven dryer atmosphere. This buildup could occur by a malfunction in the production process such as: a sudden or improper amount of coating, a change in ventilation controls or excessive speed. In any of these cases, the concentration of flammable vapor has an opportunity to rise above safe levels, creating a potentially explosive mixture of vapor in air.

The Company wanted to install a solvent vapor analyzer in each oven zone to warn operators when the LFL reached 25%. They were looking for an analyzer that could handle the varying mixtures of the process.  They chose to install PrevEx Flammability Analyzers from Control Instruments.

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