1998 FES Plate Heat Exchanger. Model: 12WP-C4-1, S/N: 33828.3. Hot side MAWP: 150 psi @ 185 °F, MDMT: -20 °F @ 150 psig, hydrotest pressure: 225 psig. Cold side MAWP: 250 psig @ 185 °F, MDMT: -20 °F @ 250 psig, hydrotest pressure: 375 psig. Plates: (406) 316 stainless steel. Total heat transfer area: approx. 5,798 sq. ft. Inlets/outlets: (4) 12 in. Overall dimensions: 128 in. L x 80 in. W x 102 in. H. Previous operating conditions: Liquid Flow Rate Temp (°F) Delta P (psig) Water 2,437,158 lb/hr 80 - 89.3 11.8 R-717 39,706 lb/hr 185 - 90.5 0.3