Air-separation & cylinder filling plants

Oxygen Cylinder Filling Plant & Air-Separation Unit

IIGAS designs and builds the plants that fill oxygen, nitrogen and argon cylinders — air-separation units (ASU) and PSA oxygen plants, complete with the compressors, high-pressure pumps and cylinder filling manifolds that charge cylinders to working pressure.

From air to a filled cylinder — a complete line

An oxygen cylinder filling plant separates oxygen from air, raises it to cylinder pressure and charges it into cylinders through a filling manifold. IIGAS supplies the whole line: air-separation unit (ASU) or PSA oxygen generator, gas storage, high-pressure compressor or cryogenic pump, and the cylinder filling station with its manifold and safety devices.

We size each plant to the number of cylinders you need to fill, the purity you require and your site conditions — and we commission it, train your operators and back it with spares.

What an IIGAS filling plant includes

  • ✓Air-separation unit (ASU) or PSA oxygen generator for the required purity
  • ✓Oxygen / nitrogen / argon storage and buffer
  • ✓High-pressure compressors or cryogenic filling pumps
  • ✓Cylinder filling manifold with filling points, pigtails and non-return valves
  • ✓Pressure control, oxygen-clean components and safety relief devices
  • ✓Instrumentation, controls and operator safety interlocks

Oxygen, nitrogen and argon — and full safety

The same plant approach fills nitrogen and argon cylinders, and medical oxygen to Indian Pharmacopoeia (IP) grade. Oxygen service demands scrupulous cleanliness and the right materials throughout; IIGAS engineers every filling plant to NFPA, CGA, EIGA and Indian Standards, drawing on membership of the BIS committees CHD 6 (Industrial Gases) and MED 16 (Gas Cylinders).

Related products

Frequently asked questions

A complete line that separates oxygen from air (by ASU or PSA), raises it to cylinder pressure with a compressor or cryogenic pump, and charges it into cylinders through a filling manifold. IIGAS supplies the whole system.
Yes. The same plant approach fills oxygen, nitrogen and argon cylinders, and medical oxygen to Indian Pharmacopoeia (IP) grade.
We size each plant to the number of cylinders to be filled and the purity required, from PSA oxygen to high-purity cryogenic air separation. Share your filling rate and purity target for a recommendation.
Both — an individual cylinder filling manifold and station, or a complete air-separation / PSA plant with generation, storage, compression and filling.
Yes — IIGAS air-separation, PSA and filling plants are exported and commissioned worldwide, supported by our engineers, spares and operator training.
Use the Request a Quote form or call +91 98308 02227 / email marketing@iigas.com with your cylinder filling rate, purity and site.

Need a gas supply or a gas plant?

Talk to International Industrial Gases Ltd about cylinders, bulk supply, medical gases or a turnkey acetylene gas plant.