The Magazine for Underwater Professionals
Characteristics of Tungum tubing prove invaluable for high-quality, safety critical applications
Drass Galeazzi is a world leader in the design, manufacture and installation of saturation diving systems. As such, the Italian company requires high-quality, proven and reliable materials for use in demanding, safety critical environments which is why Tungum is its tube of choice.
Dino Tempesti, a senior mechanical engineer and piping expert at Drass Galeazzi, explains: “I’ve worked at Drass since 2006 and from my first day I’ve used Tungum tubing in my projects. The characteristics of Tungum permit easy bending and installation inside the gas panels and diving bells, and we use it for all oxygen and mixed-gas lines of the diving system – air dive and saturation.
“Currently, seven Drass diving systems include Tungum with an additional six systems in progress. Tungum tube is perfect for an installation with two-ferrule or flare (SAE J514) fittings. I have had no recorded failures in Tungum for a decade so I recommend trying it out – you’ll thank me!”
Drass began using Tungum because it needed a DNV approved high-quality tubing solution that is corrosion resistant and oxygen compatible for use on gas ring panels, oxygen lines and divers’ air systems. Tungum is a non-sparking alloy and conforms to the Standard Test Method for Determining the Combustion Behaviour of Metallic Materials in Oxygen-Enriched Atmospheres (ASTM G124-10). It is also highly resistant to corrosion from seawater and is recommended by the International Marine Contractors Association (IMCA).
Sean Hammond, sales and marketing director at Tewkesbury, UK-based Tungum Ltd, says: “Tungum is now the material of choice for Drass. The benefits it brings are proving invaluable in piping high-pressure gases, particularly oxygen. Tungum’s excellent thermal conductivity/diffusivity virtually eliminates the danger of explosion which is absolutely critical in dive applications.”