The Indoor range from CTA 15 to CTA 52: Our filling stations for indoor installation. Making the very best use of existing infrastructures
Excellent modularity: Can be combined with all BAUER refuelling equipment and storage systems
The very latest technology and safety: In the very best BAUER quality
Spatially optimised for indoor installation: Compact, modular design combined with powerful performance
Global spare parts guarantee over 25 years: Your investment could not enjoy better protection
On-site installation and commissioning by experts: Our experienced specialists and engineers will attend your site to carry out this work
The CTA-Indoor is the right choice if a building is already available for the CNG application and the equipment is to be installed within an existing infrastructure.
Based on the CNG compressor types of the CS 23 – CS 52 series, the filling stations in the CTA-Indoor series are designed for indoor installation. All of the benefits of drying on the high-pressure side and monitoring of the pressure dew-point can be enjoyed with these stations.
The modular construction of the system supports low, mid-range or high daily capacities. The storage systems and refuelling equipment in the BAUER portfolio can be combined with the compressor models in the CTA-Indoor series.
Many of the details of the design of the modules in the CTA series go beyond the state of the art.
Thanks to the quality that is synonymous with the BAUER name, the filling station can be depended upon for reliable operation at all times, even under maximum stress and load. Furthermore, long service life and spare parts availability (25 years) provide your investment with the very best protection.
All the information you need at your fingertips!
The BAUER compressor blocks have been designed specifically for CNG applications. Exceeding the requirements of all international safety standards, they are characterised by their high energy efficiency and reliability under the most demanding conditions. Read more
High-pressure gas treatment system
The high-pressure gas treatment system (high-pressure filter) is installed downstream of the compressor on the pressure side. Its primary function is to effectively remove excess moisture and possible oil deposits from the natural gas. Read more
Filling and refuelling control
Filling and refuelling control regulates the priority in which the high-pressure storage system is filled. During refuelling, it also regulates the sequence in which gas is withdrawn from the high-pressure storage system. Read more
During technical parts approval testing in the factory prior to delivery, the TÜV carries out comprehensive pressure and safety testing as well as testing the electrical equipment.
designation ³, ⁴
|Inlet Pressure |
(at first stage
|Capacity ¹||Working |
|No. of |
High pressure units
Medium pressure units
|CTA 23.7-37||4||12||117||312||depending on |
|CTA 23.8-37||4||10||200||400||depending on |
|CTA 26.7||4||10||402||887||depending on |
¹ Volume flow rate related to 1barg, 0°C gas inlet temperature and 20°C outlet temperature, flow measured at compressor inlet, acc. to ISO1217; tolerance: +/- 5%
² Mechanical power consumption at maximum inlet pressure and discharge pressure of 300 barg resp. 80 and 100 barg
³ CTA 120 , CTA 15.xx & CTA 23.xx are air cooled machines
⁴ CTA 26.xx & CTA 52.xx are water cooled machines