Impreg-Tite is unaffected by thermal shock or the normal action of standard pickling and plating solutions (except chromic acid), says the manufacturer. The plate process heaters are supplied with a length of 47" without cement joints and can be immersed in solutions of nitric and hydrofluoric acids. With cement joints for standard service, plate process heaters are supplied with lengths to 94". They are manufactured for direct suspension in open tanks with external ribs for added heat transfer. Graphite is not affected by fatigue due to age or pulsating pressure service and will not contaminate either the materials being processed or the pickling solution.
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