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API Vapour Coupler – Aluminium

About the API Coupler (Vapour)

The API Coupler with vapour phase is designed to be used with road tanker bottom loading systems and it is manufactured in accordance with AP1 RP1004. Similar to the API Liquid Coupler, it is connected to tank trucks mating male vapour adaptor. This coupler has a TTMA flange with a check valve that ensure it is sealed when not in contact with a tank truck. The locking system within is a two-part cam and groove design type which is engaged by two leaver on either side of the coupler.

Only available in 4”, the Vapour Coupler is manufactured in aluminium with an anodised surface finish and brass locking cams.  It is of robust construction and is easy to maintain. Each coupler comes in at a weight of 3.8kg with a design temperature ranging from -40°c to 65°c.

For more designs, please head to our Coupling page where you can find a range of Manntek, engineered and API couplings.

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Available Sizes:





Up to 1 Bar G


Vapour products


BSP / NPT / Metrical Thread / Flanged Inlet



Alternative designs and specifications for the API Vapour Coupling

are available on request