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CNG Refueling System

Hyosung developed an optimum refueling system based on 40 years of accumulated technology that applies various operation modes and electric control systems for greater accuracy and stability.

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As an official CNG packager for the Ariel Corporation in the USA since January 2003, Hyosung has provided all kinds of services, such as technical support and follow-up control, to global customers. Ariel Corporation, as the biggest CNG compressor supplier in the world, is also the biggest CNG compressor market worldwide. Hyosung was the first in Asia to design and manufacture CNG packaging equipment and control systems and has conveniently provided the best service and after-service to our customers.


  • Optimum refueling system based on Hyosung’s 40 years of accumulated technology in industrial equipment and electricity
  • System designed with an optimum capacity under the various suction pressure conditions (60kg/cm2 or higher)
  • Economical operation using various operation modes (types: buffer and cascade)
  • Advanced refueling accuracy using the electronic temperature compensation system
  • High-speed refueling (five or six minutes for one bus and two minutes for one automobile)
  • Flexible system design for extension of the system in the future
  • Service network establishment and online training support
  • Simultaneous refueling based on 100% refueling
  • Low follow-up control cost
  • Low noise and vibration
  • Secures stability of the system by applying standards such as KS, ASME, NFPA, UL, DOT, AGA, and API


HI-CNG-100 Series
Provides high-quality products and compressors, satisfying customers’ various performance requirements
Low-capacity CNG refueling system is a customized CNG refueling system focusing on small-sized cars such as normal automobiles and taxis. Different from the previous middle and large refueling systems, it allows high usability with its low power consumption, small investment cost, and small installment area
HI-CNG-200 Series
Used at bus depots where medium and large sized vehicles are stored and maintained, e.g., natural gas busses, trucks, and garbage trucks; the 250HP compressor is used
HI-CNG-300 Series
Used at bus depots where large sized vehicles are stored and maintained, e.g., busses and large trucks; the 250HP compressor is used
HI-CNG-400 Series
Used at locations where large-capacity power is consumed by the vehicles, e.g., busses, trucks, and trailers


Refueling Type
quick fill, time fill, or mixture of quick and time fill
Refueling Target
public, commercial, self-consumption, or mother & daughter
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