corrosion-resistant heat exchangersAsahi/America Inc., in conjunction with Polytetra GmbH, offers all-thermoplastic, corrosion-resistant heat exchangers that are designed and built per customer specification. The all-thermoplastic Polytetra shell and tube heat exchanger features a design that diverts flow to the side of the shell, avoiding high fluid flow forces that may damage the thin-wall internal tubes of the heat exchanger. This design provides longer life and more even heat transfer by spreading the temperature control media beyond the point of its initial concentrated contact area.