Plateflow heat exchangers provide close temperature control of fluids for heat recovery in a compact, plate-and-frame design. As an alternative to shell-and-tube exchangers, they come in 20 models for surfaces to 9180 ft2. Efficient countercurrent flow yields heat transfer coefficients three to five times greater than other exchangers.

ITT Standard, Div. ITT Industries, (800) 447-7700, www.ittstandard.com