These important and high quality 3/4" to 6" diameter fittings include valve technology for the safe transfer of hazardous and expensive fluids.  The dry couplings are operator friendly and can be engaged with a simple rotation. The hose can not be disconnected and allow spillage. 

The "coupler" (female) ends normally attach to the hose, and the "adapter" (male) ends normmally attach to the equipment where the hose connects.  Normally both screw on to an MNPT thread, but flange adapter connections for the adapters are also available.

The fittings are available in aluminum, brass, & stainless steel, and come standard with viton or chemrez gasketing.   

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