Sales, maintenance and engineering — for every gas project
ADR-certified specialists supplying and servicing MEGC containers across Eastern Europe and the Mediterranean since 2005.
What we do
One team from the first specification through to the inspection that keeps the unit on the road. We supply new MEGC containers, we service the ones already in your fleet — whoever built them — and we engineer the units that don’t exist off the shelf. For the equipment behind these services, see our products and solutions.
Sale and supply
Exclusive sales and service partner for Umoe Advanced Composites AS since 2005 — Multiple Element Gas Containers for CNG, biomethane, and hydrogen across Poland, Ukraine, the Baltics, Hungary, Romania, Bulgaria, the Balkans, and the Mediterranean. Every unit is specified around your pressure rating, payload, and route, and delivered ADR-approved with its document pack.
ADR inspection and re-certification
Certified ADR testing specialists with two decades in gas-system applications. We run both intervals — the five-year periodic inspection and the ten-year re-certification — on Vítkovice, Hexagon, Umoe, and our own containers. What each interval covers.
Spare parts and component replacement
Valves, pressure-relief devices, gaskets, and fittings for containers already in service. We source and fit the parts for the brands we service, so a unit that needs a component replaced at inspection doesn’t sit idle waiting for it.
Engineering and custom builds
Containers, skids, and mobile filling stations engineered to your specification — pressure rating, payload, route, and integration with the equipment you already run. Our own builds go through the same approval route as everything else we supply, and we service them for their full life. See custom builds.
Installation and commissioning
We install the unit on your site, commission it, and train the people who will run it — the operating routine, the daily checks, and the paperwork that has to travel with the container. The equipment is productive from the first day, not the first month.
Periodic inspection and re-certification
A gas container earns money only while its inspection documents are valid. Under ADR the cycle is fixed — a periodic inspection every five years, and a heavier service at ten. When the date passes, the unit is off the road until it has been through the tests and the paperwork has been reissued.
We do the physical work. The container is stripped down, every cylinder is pressurised to its test pressure, the piping and the valves are tested, the frame is inspected, and the unit is reassembled — all of it in our own workshop, by our own people. Kiwa Inspecta Estonia — our notified body — witnesses the tests and issues the certificate. On a 250-bar MEGC that means a hydraulic test at 375 bar held for the prescribed time, a leak test at working pressure, and the pipework pressurised to 375 bar.
Book the date with us in advance and we plan the work around your operating window — a container standing in a workshop is a container not earning.



Five-year periodic inspection
The interval that keeps the container legal. Documents examined, exterior and interior inspected, every cylinder hydraulically pressure-tested, piping and service equipment tested, frame checked. Anything out of tolerance is corrected or replaced before the unit leaves, and the inspection date is reset for another five years.
Ten-year service
The heavier interval. Everything in the five-year scope, plus the wear items that do not survive a decade on the road: valves and pressure-relief devices replaced, full frame integrity inspection, corrosion protection and coating restored, and the pressure vessels re-approved where the notified body requires it.
| Inspection step | Scope | Reference |
|---|---|---|
| Examination of documents | Type approval, previous inspection reports, data plate and cylinder markings | TPED 2010/35/EU |
| Exterior and interior inspection | Cylinders, mounts, coating — damage, corrosion, legibility | ADR 6.2.1.6 |
| Hydraulic pressure test | Every cylinder pressurised to test pressure — 375 bar on a 250-bar container — and held | ADR 6.2.1.6 |
| Leak test | Complete container tested at working pressure, 250 bar | EN 12972 |
| Test of piping | Pipework and manifolds pressurised to 375 bar | EN 12972 |
| Service equipment and safety devices | Valves, pressure-relief devices and gauges checked, replaced where needed | ADR 6.2.1.6 |
| Frame inspection | Structural integrity of the container frame and cylinder mounts | EN 12972 |
Pressures shown are from a 250-bar MEGC; the test pressure always follows the container's own type approval. Disassembly, pressure testing, and reassembly are carried out by Gaznet Industrial; the inspection is certified by our notified body, Kiwa Inspecta Estonia (NB 1336).
Containers we service
We are not tied to the containers we sold you. Steel or composite, we service the brands that are actually in the market — and where the unit came out of our own workshop, we know it down to the fitting.


Vítkovice
Cylinder packs and transport containers.
Hexagon
Composite cylinder modules for CNG and hydrogen.
NPROXX
Type-4 hydrogen and CNG cylinder containers.
Umoe Advanced Composites
Type-4 MEGC containers — their service partner since 2005.
Gaznet-built units
Containers, skids, and filling stations we engineered and built ourselves.
Built in our own workshop
Containers, frames, and cradles are fabricated, piped, painted, and ADR-plated in Tallinn — which is also why we can service them years later without guessing what is inside.


Two decades of gas-system work
Our team is small, technical, and end-to-end. The same engineers who specify a container are the ones who come back to inspect it.
- Umoe partner since
- 2005
- Certified testing specialists
- ADR
- Reply to your specification
- 1 day
Recent projects
Ready to start a project?
Send us your specification — we reply within one working day.