Manufacturing since 1947

Industrial & medical gases,
engineered to standard.

Oxygen, nitrogen, argon, acetylene, CO₂ and medical gases — and turnkey acetylene gas plants built worldwide. Global leaders in acetylene technology for over seven decades.

Since 1947
Manufacturing heritage
2,466+
Customers worldwide
98.5%
Plant efficiency
World No. 1
In acetylene gas plants
Our products

Explore our gases & equipment

Select a category to browse the full range — each product carries detailed applications, technical data and FAQs.

Bulk, liquid and cylinder gases for welding, fabrication, steel, glass, food and chemicals.

World No. 1 in acetylene gas plants

We build the plants — and make the gas.

Few manufacturers do both. Since 1947 we have engineered turnkey acetylene, air-separation and PSA plants exported worldwide — and run them ourselves to fill the cylinders we supply.

IIGAS turnkey acetylene gas plant installation
Industries we serve

Gases and equipment trusted across industry

Steel & Metallurgy
Oxygen, argon and nitrogen for cutting, lancing, degassing and inert atmospheres.
Fabrication & Welding
Oxygen, dissolved acetylene, argon and CO₂ for cutting, welding and brazing.
Healthcare
IP-grade medical oxygen, nitrous oxide and medical air for hospitals and home care.
Food & Beverage
Food-grade CO₂ and nitrogen for carbonation, packaging and cryogenic freezing.
Chemicals & Pharma
Hydrogen, nitrogen and specialty gases for synthesis, inerting and labs.
Construction & Shipbuilding
Acetylene, oxygen and LPG for site cutting, heating and fabrication.
Why IIGAS

A heritage the world can rely on

Manufacturing since 1947
Over 75 years producing industrial and medical gases across India.
Turnkey gas plants
Global leaders in acetylene gas plants, with air-separation and PSA systems.
Quality & compliance
Built to NFPA, CGA, EIGA, ASME and IS; medical gases to IP standards.
Reliable supply
Cylinders, cylinder banks, liquid bulk and on-site generation, delivered dependably.
Trusted & certified

Members of India’s gas-standards bodies

Members of the Bureau of Indian Standards committees CHD 6 (Industrial Gases) and MED 16 (Gas Cylinders) — formally listed against 18+ Indian Standards.

IS 309 · Compressed Oxygen GasIS 1090 · Compressed Hydrogen GasIS 15583 · Compressed Helium GasIS 5760 · Argon — Compressed & LiquidIS 3224 · Valve Fittings for Gas CylindersIS 7285 · Seamless Steel Gas CylindersIS 8196 / 8198 · Gas Cylinders — Code of PracticeIS 3745 · Yoke Valve Connections (Medical)IS 15637 · Stainless-Steel LPG CylindersIS 3196 · Welded LPG CylindersIS 8451 · DA Cylinder Inspection & TestingIS 4152 · Seamless CO₂ CylindersIS 11006 · Flashback (Flame) ArrestorsIS 15966 · Welded Steel CO₂ CylindersIS 15894 · Cylinder Neck-Thread GaugesIS 309 · Compressed Oxygen GasIS 1090 · Compressed Hydrogen GasIS 15583 · Compressed Helium GasIS 5760 · Argon — Compressed & LiquidIS 3224 · Valve Fittings for Gas CylindersIS 7285 · Seamless Steel Gas CylindersIS 8196 / 8198 · Gas Cylinders — Code of PracticeIS 3745 · Yoke Valve Connections (Medical)IS 15637 · Stainless-Steel LPG CylindersIS 3196 · Welded LPG CylindersIS 8451 · DA Cylinder Inspection & TestingIS 4152 · Seamless CO₂ CylindersIS 11006 · Flashback (Flame) ArrestorsIS 15966 · Welded Steel CO₂ CylindersIS 15894 · Cylinder Neck-Thread Gauges
Explore by need

Find what you need — gases, plants & equipment

From bulk liquid and welding gases to turnkey acetylene plants, generators and cylinder filling — explore the supply or service that fits your requirement.

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.