INTRODUCTION
Cryogenic dispensing is a critical step in the hydrogen supply chain, where liquid hydrogen stored at ultra-low temperatures is safely transferred to end-use applications, such as fuel cell vehicles or industrial processes. This phase requires specialized dispensing equipment designed to handle the extreme cold (-253°C or -423°F) while maintaining hydrogen purity and minimizing losses due to boil-off or vaporization.
Advanced cryogenic dispensers use insulated transfer lines, precise flow control, and safety features to ensure efficient, leak-free fueling. Proper management during dispensing is essential to protect equipment, ensure user safety, and maximize the energy efficiency of hydrogen as a clean fuel.
ETHYLENE PROPYLENE RUBBER O-RING, 70 SHORE A, AUTOMOTIVE APPLICATIONS (PRÄDIFA SERIES E8556-70)
EPDM O-ring with focus on automotive, chemical processing, pharmaceutical and general industrial applications, black.
CHLORINE-BUTYL RUBBER O-RING , 70 SHORE A, GENERAL INDUSTRIAL APPLICATIONS (PRÄDIFA SERIES B8885-70)
CIIR O-Ring with focus on heating ventilation air conditioning (HVAC) and refrigeration, consumer, general industrial and hydrogen applications, black.
POLYURETHANE O-RING, BROAD APPLICABILITY (PRÄDIFA SERIES V1, ULTRATHAN®)
TPU O-ring with high wear and extrusion resistance, for high-pressure applications and small housings with no space for back-up rings, green.
FLEXISEAL® PISTON SEAL
Flange seal. Internal pressure. Static and intermittently dynamic. FlexiSeal. Spring-energized PTFE seal. Low assembly force.
C-RING METAL SEAL
Metal C-Rings are flange seals for applications involving extreme temperatures, pressures or media. C-Seals are also suitable for use with uneven flanges.
WARP SEALS
Warp Seals are special static seals that compensate for axial, radial and/or angular misalignment within a wide tolerance range. They are suitable, for example, for sealing port connections and feedthroughs of all kinds in housings.
E-RING METAL SEAL
Metal E-Rings (E-Seals) are flange/casing seals. They are designed for aerospace and general industrial high-temperature applications where the sealing gap enlarges due to operating pressure and thermal influences.
Back to Top