Plate heat exchanger. Number of plates: 106. Approximate heat transfer surface area: 650 Sq. Ft. Plate surface dimensions: 17 in. W x 52 in. H. (2) 1-1/2 in. s-line fittings. (2) 4 in. flange dia. 8 mounting holes ¾ in. dia. 2-7/8 in. adjacent. 7-1/2 in. opposite. (1) 4 in. flange dia. 8 mounting holes ¾ in. dia. 3-7/8 in. adjacent. 7-1/2 in. opposite. (1) 3 in. flange dia. 4 mounting holes ¾ in. dia. 4-3/8 in. adjacent. 6-1/8 in. opposite. Overall dimensions: L. 7 ft. 6-1/2 in. x W. 2 ft 7-3/4 in. x H. 6 ft. 1-1/2 in.