The PF series plate and frame heat exchangers are ASME designed and constructed. Models with operating pressures of 150 and 300 psi are available. With flow rates from 50 to 7,000 gpm, the units handle a wide variety of system requirements. Connection sizes from 1- to 20-in. are available, with glue free, clip- and snap-on nitrile or EPDM gaskets.