GF Piping Systems” CALORPLAST thermoplastic, all-welded heat exchangers are designed for heating or cooling in highly corrosive applications. The product line includes immersion, shell-and-tube, tube-plate, gas-liquid, and flexible heat exchangers. Materials of construction include PVDF (polyvinylidene), polyethylene, and polypropylene. These exchangers are a good fit for a variety of heating or cooling applications, including heating of pickling acid solutions, electroplating, anodizing, removing heat from chemical dilution reactions, and for acid recovery systems. The heating/cooling media can include saturated steam or hot water up to 35 PSIG at 281 F and chilled water or water/glycol solutions. Performance characteristics include chemical inertness, no stray currents, all-welded construction, low fouling, low pressure drops, and large heat transfer area in a confined space with a self-supporting structure.