Semi-hermetic Single-stage Screw Compressor
SRS semi-hermetic single-stage Screw Compressors include 5 series totaling 14 models with a displacement of 84 – 500 m3/h @ 2960 rpm. A large application window caters for a wide range of applications. Whereas all major refrigerants can be used, our compressors are optimized for the natural and environment-friendly refrigerants such as Ammonia R717.
The semi-hermetic construction results in a permanent technical leak-proof solution without a shaft seal.
The use of frequency inverters, a permanent magnet synchronous motor and adjustable Vi ensure high efficient operation at varying load and temperature profiles, thus guaranteeing high SEER values.
- “I”type patented profile, best lobe ratio of 5+7, high efficiency.
- The aluminium windings of the PM motor are compatible with ammonia and need no extra protection which can get damaged or deteriorate over time.
- Rotor is made of high- quality forged steel with micron- machining accuracy, high strength, high wear resistance, and long durability.
- The housing is made of high- strength ductile iron, design pressure: 2.8 Mpa.
- High- precision and wear- resistant roller bearings designed for a life span of 80.000 operating hours.
- The internal compression ratio Vi can be adjusted to the existing operating conditions either manually or automatically for highest efficiency, even under varying conditions.
- Integrated oil channels for secure lubrication of all critical spots within the compressor.
- Suction and discharge ports can be swapped from left to right and turned 360° for easy mounting and connection in multiple compressor systems.