Compressed Natural Gas and Dry Gas Compressors

Compressed natural gas (CNG) compressors, typically considered dry gas systems, ensure high performance, efficiency, and reliability in both energy and industrial applications. Gas is processed and compressed through screw units, increasing the inlet pressure. Their role is to deliver compactness, versatility, and continuous operation, while also optimizing gas density for more efficient storage.

Available with or without an integrated gas treatment system, VG series compressed natural gas (CNG) compressors, designed for dry gas applications, are engineered for a wide range of uses where efficiency, reliability, and optimal compressed gas management are critical.

Main applications include:

Turbine and microturbine feeding: ensuring a stable supply of compressed natural gas for energy production systems
Gas engine feeding: providing reliable compression to support efficient engine operation
Boiler feeding: delivering a steady gas flow for industrial thermal processes
Gas grid injection: enabling safe and efficient integration into distribution networks

The natural gas compressor increases the pressure of incoming compressed natural gas and improves its quality, ensuring suitability for downstream processes
Gas is drawn through a filtration system and regulated via an advanced control unit, while heat generated during compression is dissipated through an efficient cooling system
After compression, the gas is cooled and managed through mechanical, pneumatic, or electric valves and bypass systems, allowing precise capacity control typical of a natural gas screw compressor
When the system stops, the gas is depressurized and safely transferred to an expansion buffer or discharged, with automatic pressure and speed control
Under proper operating conditions, maintenance intervals can reach up to 8,000 hours, ensuring efficiency, operational continuity, and long-term reliability

INLET PRESSURE	OPERATING PRESSURE	FREE GAS DELIVERY	ADSORBED POWER
Up to 116 psi(g)	Up to 363 psi(g)	Up to 3788 SCFM	Up to 970 hp

EU

Classification of hazardous areas: ATEX Zone II
Pressure vessel code compliance: PED

Electrical Code Compliance: ISO 60079
Certified manufactoring organization: ISO 9001:2015 – ISO 14001:2015 – ISO 45001:2018

US

Hazardous Area Classification: Class 1, Div 2 as defined per NEC, NFPA70
Pressure Vessel Code Compliance: ASME
Electrical Code Compliance: UL/Control panels and assemblies
Certified manufactoring organization: ISO 9001:2015 – ISO 14001:2015 – ISO 45001:2018

UL 508A, Standard for Industrial Control Panels
UL 698A, Standard for Industrial Control Panels Relating to Hazardous (Classified) Locations
NFPA 70 National Electric Code
ASME B31.3 – Process Pipes.

CA

Hazardous Area Classification: Class 1, Div 2 as defined per NEC, NFPA70
Pressure Vessel Code Compliance: ASME -CRN
Electrical Code Compliance: UL/Control panels and assemblies
Certified manufactoring organization: ISO 9001:2015 – ISO 14001:2015 – ISO 45001:2018

UL 508A, Standard for Industrial Control Panels
UL 698A, Standard for Industrial Control Panels Relating to Hazardous (Classified) Locations
NFPA 70 National Electric Code
ASME B31.3 – Process Pipes.