WEKA is now also expanding its approvals for cryogenic hydrogen valves to include a shipbuilding permit by the classification society Maritime DNV GL.
Shipbuilding and WEKA are connected by a long-standing cooperation: For years, WEKA has been supplying cost-effective and application-engineered solutions for measuring a wide range of operating fluids on board. Today, more and more ships rely on hydrogen as a fuel, because hydrogen enables mobility with net zero emissions.
Storage of fluid hydrogen at around – 253 °Celsius
On ships of the new generation, energy is thus generated from hydrogen in fuel cells. In liquid form, larger quantities of hydrogen can be stored in a space-saving way: Even with smaller tanks, ocean-going vessels, for example, can cover long distances in an energy-efficient way. Prerequisite: On high seas, the liquid gas must be stored stably at around – 253 °Celsius – and this is where WEKA comes in with its cryogenic valves, which reliably ensure control and regulation of the fluid with minimal heat input. A rather ambitious schedule foresees the delivery of a first batch of DNV GL-approved cryogenic valves in May 21, but until then, WEKA still faces various challenges.
Second approval for cryogenic technology in the shipping industry
Currently, there are no specific shipbuilding standards with regard to highly-explosive hydrogen. In cooperation with the classification society Maritime DNV GL, it was therefore determined which standards should be applied for tests and inspections, for DNV GL-approval to be granted. In addition to previous test procedures, cold and fire tests are thus required. Another challenge is the certification and traceability of raw materials. All raw materials for pressure-bearing components must be procured in a DNV GL-certified manner. In addition, all valve components must meet certain standards for marine compatibility and explosion protection. As the cryogenic hydrogen valves are a customised solution, special prototype testing is also required.
Following the development and supply of valves for a project that meets Class NK requirements, this is the second approval to supply maritime applications with cryogenic technology. With this commitment to promoting the use of sustainable energies, WEKA AG aims to create a successful future for the next generations, both in terms of environmental protection and customer benefits.
