Hydrogen Storage & Distribution
Due to its very low density in ambient conditions, the storage and distribution of hydrogen for use can be challenging. Hydrogen can be stored as a gas or liquid after compression and/or liquefaction.
Sealing Technology for Gaseous Hydrogen Storage
Gaseous hydrogen can be compressed and stored under high pressure of up to 700 bar and more. Various types of compressors such as piston, cylinder, and diaphragm compressors for high pressures and screw-type compressors for lower pressure ranges are used, depending on volume and pressure requirements. Avoidance of contamination of the hydrogen, for instance by lubricants, requires sealing solutions with low friction and low wear in an environment with minimal lubricants.
Featured Sealing Solutions
Reliable sealing solutions resisting high pressures, explosive decompression, and high temperature fluctuations are required, irrespective of type and size of the storage tank. The materials used have to exhibit high mechanical strength in order to withstand the risk of gap extrusion in high-pressure conditions. At the same time, low permeation is important to minimize diffusion losses and to prevent the risk of explosive decompression of the material in the event of a sudden pressure drop.
Parker Butyl and EPDM O-rings
Parker Flexiseal hydrogen
Parker metal C-seal hydrogen
Sealing Technology for Liquid Hydrogen Storage
A cryogenic tank serves to store liquid hydrogen at -253 °C. Reliable sealing, for instance of the pressure and safety valves or the openings needed for filling or extracting hydrogen, is possible only with specialty sealing solutions. The same applies to sealing the entire line systems and related connectors and valves of the cryogenic tank system.
Featured Sealing Solutions
Cryogenic conditions prevent using basic elastomer seals. Solutions using PTFE or metallic materials are preferred. Combined with seals developed for cryogenic conditions, these materials enable low-leakage solutions that are not prone to glass-hard embrittlement. PTFE sealing solutions with resilient metal sealing solutions are perfect for sealing liquid hydrogen.
Parker Butyl and EPDM O-rings
Parker metal C-seal hydrogen
Sealing Technology for Hydrogen Carrier Storage
Hydrogen can be stored and transported by means of liquid carriers known as LOHC (liquid organic carriers) or solid carriers such as metal hydrides. For LOHC, similar to conventional fuels, the hydrogen can be handled by using existing infrastructure with sealing solutions made of LOHC-compatible materials. Sealing the solid carrier storage systems and their peripheries requires low-leakage sealing solutions to prevent potential safety risks due to hydrogen escaping from the storage system.
Featured Sealing Solutions
For both dynamic and static sealing of threaded connections, valves, housings, etc. of hydrogen storage systems, seals made of EPDM, butyl, or TPU materials meeting the exacting sealing requirements are available.
Parker Butyl and EPDM O-rings
PIPseals
Fluid Conveyance for Liquid Hydrogen
Fluid Conveyance for Liquid Hydrogen
Parker's Bestobell cryogenic valves are specifically designed to be used in cryogenic applications where extremely low temperatures are present. These valves are designed to withstand the extreme temperatures and pressures that are involved in transporting cryogenic fluids, such as liquid hydrogen.
Featured Cryogenic Valves
Parker's Bestobell cryogenic valves are designed to provide tight shut-off, ensuring that the hydrogen remains safely contained within the transport vessel. These valves are a vital component of any cryogenic transport system and can ensure the safe transport of hydrogen and other cryogenic fluids.
Cryogenic Globe Valve
Cryogenic Check Valve
Related Products:
Pneumatically Actuated Globe Valves - Bestobell
Sealing Technology for Hydrogen Transportation
Gases such as hydrogen are often hauled across long distances. In addition to pipelines and ships, routes on roads and railroads are frequently used. Parker Prädifa supplies reliable sealing solutions for the required ground transportation systems. Tailored sealing solutions contribute to safe transportation of hydrogen as a gas under high pressure or in liquid state at cryogenic temperatures.
Featured Sealing Solutions
In threaded connections and cover seals, O-rings and other EPDM, butyl, or TPU seals are available specifically for these uses. For sealing of liquid hydrogen, that is below -253 °C, PTFE seals preloaded with steel springs (FlexiSeals®) or resilient metal seals (Enerings) such as C-rings are used.
Parker Butyl and EPDM O-rings
Parker Flexiseal hydrogen
Parker metal C-seal hydrogen
Learn how Parker is purposefully leading the way in hydrogen production.