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Natural Gas Containers For Transportation, Type 4 CNG Storage Cylinders in the Automotive Industry

Our Natural Gas containers for transport have a plastic lining, stainless steel end fittings, and lightweight composite construction of high-strength fibreglass and epoxy resin. Low-cost type IV natural gas containers significantly reduce lifecycle costs, while preserving the quality, safety and lifetime of our products. Using such materials eliminates problems with corrosion, and also guarantees the absence of galvanic corrosion.

The CNG cylinders were tested with a safety factor from 3.2 to 3.4. They are designed for 250 bar and have a burst pressure of 840 bar or higher. Cylinders are approved in accordance with EN 12245 and far exceed the requirements of this standard. It is essential when testing for defects, impact tests and fire tests.

For operating pressures of 200 and 250 bar, cylinders of various volumes are available. Likewise, each cylinder can be up to 2400 litres and is intended for both transport and storage of CNG or BIOGAS. Tanks can be filled up to 15 000 times, giving a long-term use.

CNG transport containers


Safety is very important when transporting and storing such flammable gases as CNG under high pressure. Ultimate safety delivered by our solutions is granted both by the material properties of fibreglass CNG Type IV cylinders and by the structural design of our CNG transport containers. We subject our products to stringent fire, fatigue, stress rupture, burst, impact and proof tests.

– Containers have steel or aluminium sidewalls to protect the CNG containers from external impact.

– Our  natural gas containers are designed, calculated, and tested according to the requirements of ADR (standards in transporting dangerous goods).

– All type approval tests have been carried out jointly with DNV-GL and approved in accordance with TPED / ADR. The CNG containers overfill 8 times the requirements for fire tests without any devices overpressure or heat release. Therefore, you can decide whether to equip containers with these devices or not.

Non-corrosive properties of the material

Since the lining of our natural gas containers is plastic, and the end elements are made of stainless steel, type 4 cylinders are very resistant to corrosion. It is an essential factor even for small amounts of CO2 / water and/or H2S.

Composite materials utilised in the design of UAC pressure vessels for CNG transportation offer non-corrosive properties, wide temperature tolerances, high-strength fatigue durability, enhanced safety and extended lifetime of design in harsh and hazardous environments. Also, our CNG containers offer up to 70% weight reduction, compared to steel cylinders.

Composite materials are highly flexible and scalable to accommodate more extensive containment and transportation of CNG volumes.

CNG storage solutions

Type 4 cylinders are suitable for stationary CNG storage solutions designed for pressures up to 250 bar, with different configurations depending on the required volume. You can look at all kinds of our mobile CNG storage solutions on the Products page.

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