DNV approved gas distribution system — complete gas networks for projects with DNV requirements
Projects that call for a DNV approved gas distribution system need more than a manifold; they need drawings, material records and tested sub-assemblies that an inspector can follow.
REAL GAZ helps customers assemble the supply chain for such systems, from cylinder banks and regulators to distribution pipework and point-of-use panels.
REAL GAZ helps customers assemble the supply chain for such systems, from cylinder banks and regulators to distribution pipework and point-of-use panels.
Engineering follows EN ISO 7291, ISO 14113 for hose assemblies and EN 13480 principles for metallic pipework, serving offshore and marine classification work.
Approval itself is granted by the classification body for the finished installation, so we work from your approved drawings and submit the documents the surveyor asks for. Pipework is normally seamless stainless tube with orbital or compression joints, supported at fixed intervals, with isolation valves at every branch and pressure relief at each regulator station.
Typical project stages are concept sizing, drawing review, supply of manifolds and regulators, factory or warehouse inspection, installation support, and commissioning with purge and tightness tests. Because each stage is documented, owners can show how the gas system was built and verified, which reduces questions during classification surveys and later inspections.
🏭 Where DNV-Approved Distribution Systems Are Used
- ⚙️ Newbuild vessels — gas networks run from a central bank to workshop and galley outlets on cargo and service ships;
- 🔬 Offshore testing facilities — multiple analytical gases are piped to separate benches from a single protected store;
- 🏥 Accommodation modules — oxygen and medical air reach infirmary outlets through dedicated, colour-coded lines;
- 🚀 Floating production units — fuel gas, nitrogen and welding gases are distributed across process and maintenance decks.
💡 Why Choose REAL GAZ
- ✅ Documentation first — piping and instrument drawings, test records and parts lists are prepared with the surveyor in mind;
- 🧪 Verified components — valves, regulators and gauges come from known manufacturers with batch records;
- 🎯 Scalable design — the network is sized for today's demand with spare ports for later expansion;
- 🔒 Gas segregation — separate lines and keyed fittings prevent cross-connection between oxygen, fuel and inert gases;
- 📄 Certificate of Analysis (CoA) — supplied with every order.
🔬 Quality Control & Safety
- witnessed pressure tests when requested;
- oxygen cleanliness verification;
- line purging and dew point measurement on commissioning;
- as-built records issued with the handover pack.
Cylinders comply with ADR / UN transport rules and relevant EN/ISO standards; any third-party approval is agreed and confirmed per project.
⚙️ Trusted Gas Solutions
REAL GAZ coordinates gases, equipment and paperwork so a DNV approved gas distribution system can be specified, delivered and maintained without gaps between suppliers. We work with shipyards, operators and contractors in Azerbaijan, Turkey, Georgia, Uzbekistan and the USA.
REAL GAZ — the gas side of your approval file.