APV Heat Exchanger with Insulated Glycol Tank, Heat Exchanger National Board 1351, Type L9RGNM GS25 1997, S/N 33312.1, 120 plates 26 in. W x 70 in. H, Hot Side - 300 psi at 150 F to -20 F, Cold Side - 300 psi at 150 F to -20 F, 450 psi test, Tightening Diameter 24.39 in. max 24.04 in. min, 9 in. Connections, with epoxy coated Frame tie bar take up ammonia/glycol laser welded plate skid mounted including evaporator flooded system with controls, duty to cool 660,440 lbs/hr of propylene glycol from 30 F to 20 F utilizing 21,128 lbs/hr of R717, skid dimensions 11 ft L 86 in. W x 102 in. H, glycol tank dimensions - 12 ft H with 4 ft x 4 ft base and 8 in. ID 15 in. OD flange inlet 6 in. ID 12-1/2 in. OD flange outlet with six 120C temp gauges on external mild steel piping.