Containment valve that allows contamination free transfer

A valve system, comprising:

• a first container port and a second container port which are uncoupleable and coupleable with respect to each other between an uncoupled mode and a coupled mode respectively, wherein said ports in said coupled mode collectively define a transverse Y-axis and a transverse X-axis defining an X-Y plane;
• a first valve body pivotable about said X-axis, wherein said first valve body in a closed position seals the first port against flow of material therethrough;
• a second valve body pivotable about said X-axis, wherein said second valve body in a closed position seals the second port against flow of material therethrough, wherein in said coupled mode said first and second valve bodies are immediately adjacent each other and are simultaneously pivotable about said X-axis to an open position to allow flow of material through the first and second ports;
• wherein said first container port and said second container port are hermaphroditically interfittable with respect to each other;
• and wherein said container ports have a set of male protrusions and a set of female recess which deviate from the X-Y plane, wherein a given male protrusion has a first interfitting recess symmetrically across said X-axis and a second interfitting recess symmetrically across said Y-axis to allow hermaphroditic mating of said ports both about said X-axis and about said Y-axis.