August 2013

The number of applications for painted steel is growing and while using analyzers to stay safe is the primary concern, you might find that in doing so you can also optimize your process.

Safety and fire codes outline the design specification for the safe operation of solvent ovens. The codes limit the maximum solvent concentration allowable to 25% LFL under worst case conditions. If the LFL exceeds 25% continuous monitors must be used. The challenge with this particular application is that can be that there is a possibility of sudden increase in %LFL. 

It's important to find the appropriate analyzer for your application. Often times there are a few choices but when the data is appropriately assessed there is usually one that will do the job safely and accurately.

A decorated paper printing company was looking to reduce ventilation air and fuel costs without affecting production rates or violating the NFPA safety directives. They were using large amounts of heated air to ventilate their dryers to keep the solvent vapor concentration below 25% LFL as directed by the NPFA codes. However, the codes allow a substantial reduction in air in cases where a continuous solvent vapor analyzer is installed.