The Dry Cryogenic Coupling (LNG 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 with a minimum of pressure drop.

Technical information for Dry Cryogenic Couplings

  • Coupling Sizes
    1″ (DN25) to 8” (DN200)
  • Working pressure
    MWP 25 Bar – 1″ (DN25) to 4″ (DN100)
    MWP 16 Bar – 6″ (DN150) to 8″ (DN200)or
  • Connections
    Female NPT, flanged EN and ANSI.
    Others on request.

Advantages with Dry Cryogenic Couplings, MannTek LNG Couplings

  • Working temperature
    Lowest working temperature is -200o C
  • Materials
    Stainless steel. Others on request.
  • Easy to handle
    Push and turn – free flow.
    Turn and pull – closed.
  • Safe
    The valve cannot be opened until the unit is coupled and closes automatically when disconnecting.
  • Environmentally friendly
    Accidental spillage eliminated.
  • Reliability
    No loss or spillage of liquids at connection or disconnection.

DCC Tank Unit

Male (Tank Unit, Adapter)

Tank unit, with integrated shut-off valve, to ISO TS 18683. Self locking quick connect/disconnect coupling for the loading and unloading of cryogenic liquefied gases down to -196° C.
Typically fix mounted as filling connector for container discharge, fuel bunkering truck-to-ship, ship-to-ship, terminal-to-ship, loading/unloading of tank trucks, rail tankers and bunkering.
Can be coupled up to 7 bar. Working pressure DN 25-DN100: PN 25 bar, DN 150: PN 16 bar. Temperature range – 196° C up to +85°C.

DCC Hose Unit

Female (Hose Unit, Coupler)

Hose unit with swivel, with integrated shut-off valve, to ISO TS 18683. Self locking quick connect/disconnect coupling for the loading and unloading of cryogenic liquefied gases down to -196° C.
Typically mounted on hose assemblies and loading arms for temporary connection between storage tank and mobile transport units, e.g. for container discharge, fuel bunkering, loading/unloading of tank trucks, rail tankers and bunker vessels
Can be coupled up to 7 bar. Working pressure DN 25-DN100: PN 25 bar, DN 150 mm: PN 16 bar. Temperature range – 196° C to +85°C.