Specification: The coolers are designed to be employed in research institutes and enterprises,especially for useof machine such as rotary cooling evaporator,reaction kettle,electrophoresis apparatus,electronic scope,laser device, CT and NMR.Made from quality materials and spare parts,the coolers have long working time under full-load conditions.All parts contacting coolants are made from stainless steel or special material. 1. Big cooling power,temperature range:-15-normal temperature. 2.Reasonable design makes the products small in size(direct display of liquid level,anti-frozen,clogging-protection,low-liquid level protection). 3.Temperature is controlled by upper and lower limits. 4. DL series are wind-cooling products,resulting in saving of water. 5. Easy operation. Technical Data: Type Capacity of Stored Liquid(L)Temperature Range() Lowest Temperatureat Idling()RefrigeratingAmount(W)Flow(L/min)Lift(m)Power(W)Power Supply (V/HZ) Size(mm) DL-400 3-15-room temperature -15400221.2470220/50 405*225*560 DL-5000 35-15-room temperature -15500033142930220/50 818*691*1110