Mann Tek - Dry Cryogenic CouplingSpillfree couplings for LNG
Dry Cryogenic Couplings (DCCouplings) and Cryogenic Break-away Couplings (CBCouplings) are designed for use wherever it’s beneficial to connect and disconnect hoses and pipelines under pressure, quickly without spillage and additional tools.
Dry Cryogenic Couplings and Cryogenic Break-away Couplings are designed primarily for the use of cryogenic liquefied gases, e.g. LNG (-163ºC) and e.g. Nitrogen (-196º), where safety and reliability are of highest concern.
The Dry Cryogenic Coupling consist of a “tank” unit wich is a type of a non-return valve and a “hose” unit with a valve driven by an internal cam curve to open both valves at the same time. Operation is a single action using a straight forward turning motion to connect the couplings and open flow path. An initial push and turn action on the hose unit provides engagement with the tank unit, thus locking and sealing the two units together. Further rotation opening the internal valves, thereby allowing full flow