SRM Open-type Single- stage Screw Compressors include 6 series totaling 19 models. Displacement 265- 10850m3/h（2960RPM）,discharge temperature – 45°C to +20°C , applicable for the natural and environment-friendly refrigerants such as R717, R404A, R507A, etc. Step less (10%- 100%) capacity control: intelligent controller with accurate selection and rapid response to ensure to operate in high EER under different working conditions. The designed obliquity >30°, which is also applicable to the refrigeration systems on the marine units.

Features of SRM open-type single-stage screw compressor:
●“I”type patented profile, best lobe ratio of 5+7, high efficiency.
●Rotor is made of high- quality forged steel with micron- machining accuracy, rendering excellent overall mechanical properties, high strength, high wear resistance, and long durability.
●The housing is made of high- strength ductile iron, working pressure 2.8Mpa.
●Innovative shaft seal. The wear- resistant sealing surface is made of silicon carbide, rendering high reliability.
●High- precision and wear- resistant rolling bearings with the designed life of 100 thousand hours.
●Vi control function ensures high efficiency operation under various working conditions.
●Step less capacity control (10- 100%) with the proprietary technology of explosion- proof cylinder of the capacity control.
●Integrated oil circuit: easy installation and low failure rate.

Merits of open-type single-stage inverter screw compressor unit:
● SRM high- efficiency screw compressor: higher COP than the same type of compressor units.
● Open asynchronous motor with high efficiency and low noise; the permanent magnet synchronous variable frequency motor is also available for selection.
● Differential- pressure oil supply system with a small oil pump as pre- lubrication: energy- saving and reliable.
● Economizer installed: make the high pressure liquid from the condenser sub cooled, thus improve COP of the system.
● Fully automatic one- key start- up; real- time analysis and monitoring of the operation status; saving and keeping of the historical data, remotely control.
● Automatic capacity control make the unit run with high efficiency under various working conditions.
● The preventive safety and protection system: unmanned but safe and reliable.
●All the components are from well-known manufacturers: high reliability and guaranteed quality.
● Each unit is tested and checked for its full performance to ensure the quality.