Brief introduction: The low-temperature liquid circulation equipment adopting compression refrigeration can be used to cool test tube, reaction bottle, meet the conditions of low-temperature reaction or storage, and can be used in conjunction with rotary evaporator, vacuum freezing drying box, multi-purpose vacuum pump of circulating water, etc. Features: Large capacity open bath and external circulation system, can be used as a freezing tank, and can provide cooling fluid. Button input and digital display, easy to use. Refrigeration compressor and other key components adopt famous American, German and French brands, high reliability and high efficiency. Circulation system is made of 304 stainless steel and polymer anticorrosive materials, which can resist rust, corrosion and low temperature liquid pollution. Technical parameters: Model: XDYQ - 5/20 Display: high precision (LED) LCD display Solvent in tank: 5L Low temperature range of use: ❉ - 20 degrees at room temperature Refrigerating capacity: 550w-1240w Refrigerant: R404A or ethanol Cooling power: 630W Rated voltage/frequency: 220V/50HZ Maximum input current: 2.9a Circulation pump flow and head: 20L/min 6m Maximum working pressure: 3MP Maximum allowable pressure of heat exchanger: 3MP Weight: 40KG Dimensions: 480X330X630mm