co-ax® on the job
solutions for hydrogen applications

Hydrogen can diffuse through metals – the reason why metals lose their strength. This process, referred to as hydrogen embrittlement, can be prevented by using suitable materials such as austenitic steels (316 or 316L).

• co-ax® offers the use of hydrogen-resistant materials.
• co-ax® offers a careful selection of materials, especially the wetted parts.
• co-ax® offers durable and reliable valve technology.

When combined with oxygen, hydrogen can form an ignitable mixture. In order to ensure safety, especially in enclosed spaces, the tightness of installed components is of key significance.

• co-ax® offers 100% tightness to the outside and at the valve seat thanks to coaxial valve technology.
• co-ax® offers an additional vacuum test which ensures tightness.
• co-ax® offers 100% testing of all valves supplied by co-ax® and guarantees unique quality.

Having a low energy density in relation to its volume, hydrogen is compressed for storage and for the refueling process. The initial pressure of the hydrogen is constantly being increased, the reason why pressures of various intensities have to be controlled.

• co-ax® offers a pressure-balanced design which allows valve switching from 0 bar.
• co-ax® offers valve tightness, even when back pressure is applied.
• co-ax® offers a bi-directional flow in the valve which enables medium return.