Like all chiller systems, a water cooled screw chiller consists of an evaporator, expansion valve, refrigerant, internal piping and controls. The main difference between screw chillers is their compressor. Screw chillers use two helical rotors to drive and compress the refrigerant gas. This type of chiller has nearly constant flow performance and is powered by an electric motor, steam or gas turbine. They are available in capacities ranging from 25 to 800 tons and are very effective when used with liquids with high evaporative temperatures.

Screw or helical compressors in screw chillers consist of two matched helical groove rotors: convex baffle and groove. They are mounted in a fixed housing and move simultaneously. As they rotate, the refrigerant gas is compressed and converted to vapor by the direct volume reduction between the two rotors.

These compressors are equipped with sliders that adjust the length of the compression path. Intake, compression and discharge take place in a linear direction. An oil lubricant on the rotor also acts as a sealant. The motor is cooled as the refrigerant flows through the holes in the screw, which acts as a liquid separator. It is important that the screw chillers are properly sized.

When they are too large, they have a long reverse cycle time and will shut down if cooling is not needed. This can also happen if the motor is running at unnecessarily high speeds or if it is driven in an open circuit. However, when properly configured, motorized chillers are reliable, efficient liquid chillers for the entire range of industrial and air conditioning applications.

This series of water cooled screw compressor chiller adopts European high-efficiency screw compressors, which have their own advantages: high energy efficiency, low noise, high reliability, small footprint, easy installation, simple operation and high flexibility. They are widely used in surface engineering, medicine, chemical, metallurgy, leather, laser, electronics, injection molding, printing and other industries. There are too many models of this series of chiller. It can realize the perfect match for industrial applications.