Single-stage, air-cooled, compressor for compressing purified gas.
Note: permissible H2S content up to 4,000 ppm depending on application.
The rotary vane gas compressor complies with Directive 94/9/EEC.
Suitable for transporting explosive gases and vapors in explosion group IIB, temperature class T2 in zone 1. It can be operated in zone 1.
II inside 2G c IIB T2
II outside 2G c IIB T2
All components are mounted on a main frame
Rubber-metal elements to reduce vibrations
Electrical control panel wired to terminal boxes
Installation does not require foundation.
Rotary vane compressor stage
Fresh oil injection cooling
Multi-cell design principle, driven directly via an elastic coupling between the drive motor and the compressor stage
Suitable for compressing purified gas
Outstanding operating reliability
Dynamic oil film between vanes and the inner wall of the compressor housing
Low rpm and self-centering rotor
The gas flows through the suction line to the compressor stage. Here it is compressed as a result of the increasingly smaller volumes of the compression chambers. The compressed gas exits from a compression fitting on the compression stage through a check valve and enters the compression-side piping system.
The compressor is cooled by a direct-drive cooling air blower on the A side of the compression stage. The heat of compression is transferred to the incoming cooling air via the cooling ribs on the exterior of the compressor housing. The L 50-100 sized compressors have an additional cooling air blower on the A side of the compressor stage.
The compressor stage is driven directly via an elastic coupling with coupling protection between the drive motor and the compressor stage shaft.
Safety Equipment and Display
Temperature switches to monitor the gas outlet temperature
Level monitor to check the oil level in the lubricating oil tank
Pressure gauge for compressor pressure
Check valve on the pressure side
Parts & Service
Service and maintenance are costly and time consuming necessities. To keep your costs down we offer hands-on workshops for your technicians to empower them to carry out service fast and efficiently at your plant. Successful attendance of our in-depth trainings for ATEX machines is rewarded with a certificate. If your machine actually breaks down we provide fast and efficient support from the factory.
Wittig is part of Gardner Denver, Inc., a leading global manufacturer of highly-engineered, critical flow-control products, Gardner Denver is headquartered in Milwaukee, Wisconsin, USA and has facilities in more than 30 countries. To learn more about the company, visit