Description / remarks:
Used and in condition as new (only 1 year in production): complete Bitzer 2-stage freeze-pump installation built on a steel frame. The used Bitzer freeze-pump installation consists of the following main components: 3 pieces low pressure (booster) screw compressors open type OSKAB 7471 with each a 30kW E-motor, 2 pieces high pressure screw compressors open type OSKA 7451 with each a 55kW E-motor, 2x oil separator 881 Ltr, for the low and high pressure side, water cooled oil cooler type plate heat exchanger Alfa Laval coupled to an air-cooled Güntner dry cooler type GFH 0678/2N, horizontal low pressure separator 640 Ltr -40°C with 2 pieces Hermetic Cam 1/3 NH3 liquid pumps, horizontal intermediate pressure separator 640Ltr -6°C coupled to a plate cooler/ heat exchanger for natural circulation, ± 130kW to be used for possible. glycol cooling, air-cooled condenser or evaporating condenser for choice, switch-board with PLC controller. Machine is delivered with all necessary certificates for PED, cool technical and electrical drawings, GEA purger. Mentioned capacity is at -40°C evaporating temperature and +40°C condensing temperature.