DeLaval Contherm Scraped-Surface Heat Exchanger. Model: 6 x 9 HC-NCC. S/N: HC2683NCC. Cylinder: material of construction: Chrome plated nickel. Rotor design: non-staggered. Capable of accommodating 12 scraper blades of varied contruction materials. Upper and lower seal type: double mechanical with water flush. Upper and lower ports: 3 in. Upper and lower head design: straight. Drive type: belt driven 7-1/2 hp. Designed to be used with flooded refrigerant (i.e. Freon or ammonia), with working temperature ranges of: - 30°F to + 300°F and a maximum working pressure of: 300 psig (20 bar) product side and 250 psig (17 bar) media side, these Contherm scraped-surface heat exchangers are specifically configured to provide efficient and gentle treatment of varieties of shear-sensitive products or particulates. Overall dimensions: 15ft. 11-1/2 in. L x 2 ft. 10 in. W x 3 ft. 1 in. H.(ACN500-83).