Radoil’s patented Loc-Torus Hydraulic Connector was designed to fit standard wellhead hub or mandrel profiles. However, it has recently been designed for smaller applications such as 5” and 7” Fracture Manifold systems. It provides a sure connection at the wellhead, the re-entry mandrel for BOP/Riser systems or Completion / Frac Tree assemblies. Our Loc-Torus design ensures that the dogs are easily and uniformly operated into the engaged or disengaged positions similar to the “lock over-center” (Loc) effect of a light switch. When locked, the dogs cannot be unintentionally moved into the unlocked position and when unlocked, the dogs cannot be unintentionally moved into the locked position.