Nitrox Systems

Minimal Operator Intervention, Maximum Uptime

NRC International is a global leader in nitrox systems and a pioneer in modern nitrox diving. Since 2000, it has shaped the industry with initiatives like the widely adopted 'Nitrox for Free' program and training standards still used today. For over two decades, leading dive centers around the world have relied on NRC’s professional-grade technology. It is engineered for exceptional reliability, regardless of the production method.

The Three Primary Ways to Create Nitrox

In principle, nitrox production can be divided into two main methods. The first uses 100% oxygen to enrich the nitrox mixture, typically through the partial pressure or co-flow (blending) methods. For producing larger volumes without relying on pure oxygen, the membrane process is used. This method increases oxygen content by separating nitrogen from ambient air and is considered the safest approach.

Membrane System

Best for Dive Centers that Want to Produce Large Quantities of Nitrox

With membrane technology, Nirox is made from ambient air, it is considered the safest method to produce nitrox in large quantities. The maximum amount of oxygen that can be achieved with this process is limited and thus ensures extremely high safety when using a membrane. It is now considered the standard procedure at international diving centers that offer Nitrox to their customers, as it produces Nitrox safely and inexpensively.

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Continuous Blending

Best for Dive Centers that Want to Produce Large Quantities of Nitrox

With the co-flow process (blending), the supply should be 100% oxygen must be guaranteed. Trained personnel should also be deployed here, since the actual blending with 100% oxygen takes place upstream of the compressor. In principle, larger quantities of nitrox can be produced, but at a higher cost. This method is therefore suitable for small dive centers that have a cheap and very good supply of 100% oxygen.

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Partial Pressure Blending

Best for Small Amount High %

The handling of 100% oxygen poses a certain potential for danger as oxygen is considered a fire accelerant and is reactive, only trained personnel and tested equipment should be used. The partial pressure method is suitable for the production of small amounts of nitrox or if high oxygen percentages are required in the later mixture, and the supply of 100% oxygen should be sufficiently secured.

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