Since chillers are sometimes used in a number of flammable dust, gas or chemical fields. At this point the chiller for the safety needs in the electronic control, motor, fan and other places to do explosion-proof treatment.

Davosi chillers selected world famous brand compressor (Germany Bitzer, Taiwan Hanzhong, the United States Copeland), explosion-proof water-cooled unit is based on the standard chillers spontaneous design of the new unit. The use of explosion-proof, security, intrinsically safe, positive pressure, oil, sand, no spark, pouring and airtight and other explosion-proof way, so that units can be used in flammable and explosive situations, and according to the characteristics of the use of Different requirements for safety requirements Different explosion-proof levels.

Performance of the unit Through the professional testing of the national inspection system, in line with EXDIIBT4 and GB / T 18430.1-2007 "steam compression cycle cold water (heat pump) unit Part 1: industrial or commercial and similar use of cold water (heat pump) unit" and other standards ; Explosion-proof performance of the unit in line with GB3836-2000 "Explosive gas environment with electrical equipment" and IEC60079-1991 "Explosive gas environment with electrical equipment" and other standards

Davos company all the chillers all selected original imported semi-closed screw and semi-closed reciprocating compressor. Twin screw 5: 6 gear ratio and advanced linear design, low carbon energy saving and environmental protection; good performance, low noise. According to customer needs and the size of cold tonnage, using single or multi-machine combination. Compressor can change according to load, automatically alternate operation, balance the operation of the compressor hours, greatly extending the use of chillers, trouble-free operation up to 45000 hours or more.