Valve for obturating a pipe

A valve for obturating a pipe, the valve having:

• a central axis X,
• a body having an inlet and an outlet,
• a body wall defining an aperture extending between the inlet and the outlet,
• a plurality of obturating portions for obturating said aperture,
• a valve mechanism connectable to an actuator,
• the plurality of obturating portions, moveable from a first closed position when the valve is closed to a second open position when the valve is open by the valve mechanism,
• the body wall including a valve seat for receiving the plurality of obturating portions,
• each obturating portion having a first end and a second end and a mid-section for sealing the aperture, the mid-section including a valve sealing face, for sealing to another of the obturating portions, and a pipe sealing face for sealing to the pipe;
• a plurality of first fixed pivot mounts on the body and wherein the first end of each obturating portion is pivotally mounted within one of the plurality of first fixed pivot mounts;
• a plurality of second non-fixed pivot mounts connected to the valve mechanism and wherein the second end of each obturating portion is pivotally mounted within one of the plurality of second non-fixed pivot mounts;
• and
• wherein the valve mechanism and hence each second non-fixed pivot mount is movable in three dimensions between the first closed position and the second open position.