The ABVL series breakaway coupling is a consistent further development of the RS breakaway coupling programme. Along with the accustomed safe triggering as seen in the ABV series, this series minimises the pressure loss within the coupling. This saves energy and time during the loading process.
The design is based on models from nature such as dolphins and squids and was developed with the aid of CFD or computational fluid dynamics analysis.

The ABVL series breakaway couplings separate the line at a defined tensile load. This must be selected with a sufficient safety margin below the load limit of the line, such as the maximum permissible tensile load.
Three breaking pins, which connect two nearly identical ABVL coupling halves via a pair of flanges, are used as the triggering
elements. The flanged connection has no overlaps, so tensile forces acting on the line are directly transmitted to the
breaking pins independent of the load angle. If their maximum tensile strength is exceeded, the pins break. This simultaneously loosens the flanged connection.
Two non-return valves on both coupling halves ensure that the sectioning points of the line are safely when the coupling is released. In the operating state, the two spring-loaded non-return valves brace each other in such a way that keeps the line cross-section open and guarantees the maximum flow. In the case of separation, the two valves immediately close each cross section being released.