East Star cold water machine, water-cooling unit, air cooled machine commonly used refrigerant: 1 water chiller refrigerant: water can be used as a coolant temperature higher than 0 DEG C. The specific heat of water is large, the convection heat transfer performance is good, and the price is low. 2 chillers saline refrigerant, usually by calcium chloride (CaCl2) or sodium chloride (NaCl) aqueous solution prepared. It can be used for the work of the coolant temperature is lower than 0 DEG C, chiller saline concentration, its density is larger, the flow resistance is increased; at the same time, the increase of the concentration of the specific heat is reduced, conveying the required amount of cold saline solution flow will increase, resulting in increased power consumption. Therefore, the preparation of the cold water salt solution, as long as the concentration of the corresponding solidification temperature is not lower than the lowest possible temperature of the system, the general solidification temperature is lower than the evaporation temperature of refrigerant 5~8 C. The salt water solution of the cold water machine is also corrosive to the metal, especially the salt solution with slight acidity and contact with air. In order to reduce the corrosion of metal salt water chiller, can add a certain amount in the cold water machine in saline solution preservative; Dongxing chillers, DX-50WD water-cooled unit, DX-40AD air-cooled chiller features Dongxing open chiller chiller 1 open type cold water machine adopts human technology the panel, full automatic control, equipped with sophisticated electric temperature controller, long-term stable operation. 2 open type chiller using efficient heat exchanger, cooling capacity loss, easy to oil, not cracking the advantages of heat transfer tube. 3 open type cold water machine imported from Japan and the United States high-performance compressor, high EER value, low noise, stable operation. Large scale food processing cold water machine, open type cold water machine, cold water machine factory direct sales. Dairy machinery, brewing equipment, preservation of cold storage equipment, food packaging machinery, loading machine with cold water machine wholesale