View Tameson's range of Guillemin couplings. Guillemin couplings are widely used for tanker trucks, silos, and agriculture, especially in the Netherlands, Belgium, and Luxemburg. The connection for the Guillemin couplings of standards NFE 29572 and EN 14420-8 is made by interlocking four vertical jaws. Usually, a coupling is used on mobile systems equipped with an adjustable clamping ring (locking), which locks the jaws by twisting. To create a connection, at least one of the coupling halves must be equipped with a lock. On Guillemin couplings, only the coupling with the lock is equipped with a soft seal, which can be made out of FKM (fluoroelastomer) or PTFE (polytetrafluoroethylene) as well as NBR (nitrile rubber) as a replacement seal. Our couplings are made of stainless steel or aluminum.