Introduction
    Yu Jiang corrosion resistance cold water machine uses fully-closed turbine air compressor and semi-closed air compressor. These imported products have famous brands. The new highly efficient condenser, corrosion resistance evaporator and cooling and controlling components are of the most famous brands globally.This cooling machine has good features such as superior functions, stable performance, simple operation, compact structure, good appearance. Regardless of using in harsh environment or corroded environment, the cooling machine can meet the requirements while its life-span is expanded. Our company’s corrosion resistance cooling machine is calculated to combine accurately the material and capability in order make a superior and reasonable design. The cooling machine can be produced upon special requests of customers. It is tested at the running test center and only launched when achieving the technical criteria. Therefore, this cooling machine has high efficiency, good quality, few problems, long life-span, providing customers the best products.

Working principle
Corrosion resistance cold water machine uses water (or wind) for cooling, high temperature high pressure gaseous refrigerant escaping from air compressor goes through tubular condenser (or winged condenser) and cooling tower (or heat dissipation ventilator) to become low temperature high pressure liquid refrigerant, then expansion valve supplies low temperature low pressure liquid refrigerant to tubular evaporator for evaporation to achieve chilling efficiencies (capacity state: The required input temperature of water: 12℃, the required output temperature: 7℃, the required input temperature of cooling water: 30℃, the required output temperature: 35℃or environmetn temperature DB35℃/WB24℃)

Scope of use: in industrial manufacture sectors which need corrosion resistance environment and introducing agent.

Air compressor
 Air compressor: using fully-closed turbine air compressors of globally famous brand-names such as DAIKIN、COPELAND、SANYO、MANEUROP, Performer, or semi-closed screw-shaft air compressors such as HANBELL, Bitzer, Ref Comp. They have such dominating features as stable performance, high efficiency, low incident rate, convenient maintenance. Their working hour can reach 40,000 hours. Based on customers’ request, one or more air compressors can be used, air compressor can change in accordance with sub-load, automatically interchange operation, balance working hours of air compressors, save power, extend cooling machine’s life span.
(Fully-closed turbine air compressor uses refrigerants such as R22、404c、R407c、R134a)

Condenser and evaporator
Cooling water tube condenser: using various heat exchange copper tubes imported from German, Japan and produced domestically. The copper tube’s outer surface is processed in low-level ladder shape, thereby increasing the heat exchange area, enhancing the heat transfer. The copper tube’s inner surface is glossy, thereby reducing water pressure and making it easy for cleaning and maintenance.
Cold winged condenser: uses different heat exchanger copper tubes imported from Germany, Japan or domestically produced, the heat exchanger copper tubes of high efficiency are transparently threaded and the wind guide winged  is made of water permeable corrosion- resistant thin aluminum foils in parallel pairs, that expand the mechanical tube to tightly link the copper tubes and aluminum pieces together in order to maximize heat transfer efficiency, compact structure, small volume, light weight, high efficiency of heat exchange, easy cleaning and maintenance
The evaporator is made by 316L stainless steel, titanium tube, or copper alloy. Regardless of using brine or acid as introducing substances or in the harsh environment, our company can follow customer requirements to select suitable material to fabricate the evaporator, increase efficiency and longevity of the machine and ensure machine stable performance.

Cooling Units
Cooling Units: Using the well-known global brands such as DANFOSS, ALCO, SPORLAN with first-rate quality and superior functionality which helps promote machine efficiency.

Electric control-system
Electric control-system uses smart PLC、PC touch screen control system in Chinese language with quick response and precise control. The system has functions of water temperature automatic control, load automatic increase and decrease, on-off timing and record of incident causes. The operation is simple and easy. Its automatic protection function can prevent the machine from damage during operation, extend the longvity of the machine and perform remote control and central control.

Protection devices 
   Overload protection devices of air compressor, over heat protection devices of coiler, overload protection devices ventilator engine, protection devices of low-high pressure switch, phase protection devices (reverse-phase, phase shortage), protection devices of anti-freezing, safety valve  or safety bolt, are best protecters of the machine.