Single Stage Compressors – SRS Serie

Again SRMTec is writing history by the introduction of the semi-hermetic screw compressor suitable for Ammonia supporting the conversion from environment harming substances like CFC’s to Natural Refrigerants.

Equipped with the i-profile and a permanent magnet motor these compressors make no compromises on energy efficiency. The aluminium windings of the motor take no chances of deterioration compared to insulated copper windings.

Without shaft-seal this technically permanent leak-proof solution is perfectly suited for applications in or close to residential areas where apprehension against Ammonia might prevail. That makes this compressor predestined for commercial process cooling or comfort cooling/heating.

Single Stage Compressors:

The semi-hermetic Ammonia compressors offer the solution for smaller capacity ranges or where a technical permanent leak-proof system is the choice.

SRS semi-hermetic single-stage Screw Compressors include 5 series (SRS 08, 10, 12, 14 and 16) 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.

Features of SRM open-type single-stage screw compressor:

  • “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.

More information:

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