Refrigeration & Heat Exchange

DL DD DJ series for your choice
DL: High temperature
DD: Medium temperature
DJ: Low temperature


1.Scientific structure, high efficient, frost, save power and low running cost;
2.Equip with axial fan models that offer strong air flow in long shot range; save power, long service life;
3.Copper pipe thickness can reach to 0.6mm, which lead to perfect tightness between pipe and fin after expansion processing;
4.Equip with stainless electric heater in high insulating property, defrost efficiency in shot time;
5.The heat exchanding coil was did gas tightness test under 2.6MPa air pressure, to guarantee quality;
6.Alumnium and painted stain board, to meet your different needs.


Sphere of application

High temperature type: (cold room temperature 12~-2 centigrade) fin space: 4.5mm
Medium temperature type: (cold room temperature -2~-10 centigrade) fin space: 6.0mm
Low temperature: (cold room temperature -10~-31 centigrade) fin space: 9.0mm


Attention of model selection

When the cold room temperature is around 0 centigrade, select 8 centigrade to be difference between compressor evaporating temperature and cold room temperature;
When the cold room temperature is around -18 centigrade, select 7 centigrade to be difference between compressor evaporating temperature and cold room temperature;
When the cold room temperature is around -25 centigrade, select 6 centigrade to be difference between compressor evaporating temperature and cold room temperature;
According to selected evaporating temperature, compressor’s capacity= the cold room loading x 1.15.