1990 APV Plate Heat Exchanger. Model: CR5 HYDRAULIC. S/N: 22839. Materials of construction: 316 and 304 stainless steel. Number of plates: 223. Approximate heat transfer surface area: 1200 sq. ft. Originally installed in a Jerseymaid ice cream plant, this was originally used in a multi-pass process for a 14% ice cream mix flowing at 60 gpm, with water and glycol used as the heating and cooling media. Maximum operating pressure 225 psi. Overall dimensions: 11 ft. L x 3 ft. W x 8 ft. 5 in. H.