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Gaznet
CNG and biogas transport container with type-4 cylinders

Natural gas containers for transportation

ADR-approved CNG and biogas transport containers built around UMOE type-4 composite cylinders — engineered for the road, certified to EN 12245.

The product

Multi Element Gas Containers for CNG, biogas, and beyond

Gaznet supplies state-of-the-art mobile storage solutions for CNG, biogas, and hydrogen transportation. Our containers are built in partnership with UMOE Advanced Composite — a leader in composite cylinder technology — which means every container we ship carries field-proven performance, reliability, and safety credentials.

We produce the Multi Element Gas Container (MEGC) for CNG and hydrogen transport and storage. Read more about MEGC and our partnership with UMOE.

Technical downloads

Download the original product brochure for drawings, photos, and full catalogue context.

CNG transport container in service

Type-4 ultra-lightweight cylinders

Our natural gas transport containers use a plastic liner with stainless steel end fittings, wrapped in high-strength fibreglass and epoxy resin. Type-4 construction eliminates corrosion problems — including galvanic corrosion — and significantly reduces lifecycle costs while preserving safety margin and service life.

The cylinders are tested with a safety factor of 3.2–3.4. They’re designed for 250 bar operating pressure with a burst pressure of 840 bar or higher, certified per EN 12245 — and far exceed the standard’s requirements on defect testing, impact tests, and fire tests.

Pressure

200–250 bar

Burst pressure

≥ 840 bar

Cylinder volume

up to 2,400 L

Refill cycles

≥ 15,000

CNG and biogas transport container variants
Technical characteristics 20 ft standard 20 ft HC 40 ft standard 40 ft HC Tube-trailer 45 ft (10 cyl.) Tube-trailer 45 ft (12 cyl.)
Container standard ISO/ADR ISO/ADR ISO/ADR ISO/ADR ISO/ADR ISO/ADR
Quantity of cylinders 9 11 18 22 10 12
Volume of cylinders 1 666 1 666 1 666 1 666 1 925 1 925
Volume of container (MEGC), L 15 000 18 333 30 000 36 666 19 250 23 100
Work pressure at 15 °C, bar 250 250 250 250 250 250
Volume of gas at 15 °C, m3 4 587 5 504 9 174 11 212 5 285 6 342
Weight of CNG at 15 °C, kg 3 256 3 908 6 513 7 961 4 228 5 145
Tare weight, kg 10 500 12 550 20 400 25 490 15 100 17 600
Gross weight, kg 13 756 16 456 26 913 33 451 20 100 22 600
Trailer included No No No No Yes Yes

Standard variants shown for comparison; final payload, chassis, and manifold configuration are confirmed per project.

Safety, certifications, and design

Transporting and storing flammable gas at high pressure is unforgiving — so we engineer every container to fail safely under fire, fatigue, stress, and impact testing. The fibreglass cylinder material and the structural design of the container work together.

External impact protection

Steel or aluminium sidewalls protect the cylinders from external impact during haulage and handling.

ADR / TPED certified

Designed, calculated, and tested per ADR (dangerous-goods transport). All type-approval tests carried out jointly with DNV-GL, certified per TPED / ADR.

Fire test margin

Cylinders exceed fire-test requirements by 8× — operators can choose to fit overpressure / heat-release devices or rely on the cylinder’s own margin.

Why composite over steel?

Composite materials offer non-corrosive properties, wide temperature tolerance (-40 °C to +65 °C), high-strength fatigue durability, enhanced safety, and an extended service life in harsh and hazardous environments. Versus steel, our containers deliver up to a 70% weight reduction at the cylinder level.

Stationary storage, too

Type-4 cylinders also fit stationary CNG storage solutions designed for pressures up to 250 bar — in different configurations depending on volume and footprint. See our full product range.

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