How Cryo DC Couplings improve fuel transfer safety

Safety isn’t negotiable when it comes to transferring cryogenic fuels like LNG or liquid hydrogen. Cryogenic fuels are stored and handled at extremely low temperatures, and even minor leaks or any kind of mishandling can lead to severe risks – including explosions, operator injuries, or environmental damage.

KLAW Cryo DC Coupling

Pacific Hoseflex’s KLAW Cryo DC Coupling is a game-changing solution engineered to make cryogenic fuel transfers safer, cleaner, and more efficient.

Also known as a Dry Disconnect Coupling or Dry Break Coupling, the KLAW Cryo DC is designed to eliminate spills during both connection and disconnection. It does this via an automatic valve system that seals both ends of the connection as it disengages – which means no fuel leakage, no vapour release, and no operator exposure.

The core technology mirrors a standard dry disconnect coupling, however, the Cryo DC is fitted with low-temperature seals specifically developed to withstand the extreme conditions of cryogenic fuels.

About Dry Disconnect Couplings

Enhanced safety through dry break technology:

One of the biggest safety risks during cryogenic fuel transfer is accidental spillage or exposure. The KLAW Cryo DC Coupling can dramatically reduce this risk through its innovative dry break system.

No-spill disconnection: Seals both the hose and the tank during disconnection.
Operator protection: Prevents exposure to freezing cryogenic liquids and harmful vapours.
Fire and explosion risk minimised: No fuel leaks means no ignition sources are exposed to volatile gases.

Engineered for extreme conditions:

When you transfer fuels like LNG or liquid hydrogen you must have equipment that performs reliably under extreme stress. The KLAW Cryo DC Coupling is precision-engineered for cryogenic use, with strong materials and seals that:

Maintain flexibility and strength at sub-zero temperatures
Resist embrittlement and cracking
Ensure safe connection integrity across repeated use cycles

When you’re operating in environments that can dip below -160°C, standard equipment isn’t enough, but it’s where the Cryo DC excels.

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Failsafe Disconnection to mitigate risk:

When you take a closer look at the KLAW Cryo DC Coupling design, you’ll see that one of its key safety features is its automatic safety shut-off during accidental disconnection. If a hose is ever pulled or dragged while connected, which can be a common risk on busy worksites – the coupling safely disengages and instantly seals both ends, preventing massive fuel release, fire hazards, environmental contamination and costly downtime or incident response.

Environmental compliance & ESG alignment:

It’s essential to be fully compliant and sustainable in today’s highly regulated environment. The Cryo DC coupling helps your operations meet key environmental standards, including:

EPA and IMO regulations
ISO 18683 for LNG bunkering
Corporate ESG (Environmental, Social, Governance) initiatives

When you eliminate spills and fugitive emissions, your business can meet compliance benchmarks and contribute to long-term environmental goals.

Efficiency and safety:

The KLAW Cryo DC doesn’t also boost operational efficiency. Its tool-free connection and easy-grip handle allow for fast, secure engagement and disengagement without specialised tools or training. This enhances turnaround times, reduces operator training, lowers clean-up costs and can minimise downtime.

Explore the KLAW DS Range of Dry Disconnect Couplings

Safer fuel transfer

Serious responsibility comes with handling cryogenic fuels, and Pacific Hoseflex is here to support you with best-in-class hose and coupling solutions. The KLAW Cryo DC Coupling transforms cryogenic fuel transfer from a high-risk process into a safe, seamless operation.

Whether you’re managing LNG bunkering, hydrogen fuelling, or other cryogenic applications, you need solutions that deliver reliability, compliance, and peace of mind. With the KLAW Cryo DC, you’re equipped for all three.