Watertight check valve

A check valve for a fluid distribution system, the check valve comprising:

• a valve body defining a valve inner cavity, the valve inner cavity defining a valve bore extending from a first axial end to a second axial end, the valve bore defining a cylindrical shape, the cylindrical shape defining a central axis of the valve body, the central axis extending from the first axial end to the second axial end, the valve body comprising an annular body and a fixed cross member secured to and extending in a radial direction relative to the central axis of the valve body across the valve bore from the annular body on one side of the valve body to the annular body on an opposite side of the valve body, the valve bore at the cross member divided into more than one portion by the cross member;
• a position block secured to the cross member of the valve body, extending from the cross member, and defining a pivot bore;
• a pivot pin positioned within the valve body and extending through the pivot bore of the position block, the pivot pin positioned entirely within the cylindrical shape of the valve bore;
• and
• a valve member positioned within the valve body and configured to rotate about the pivot pin to a closed position when a pipe system termination fitting attached to the valve body is dislocated from the valve body or when the fluid moves in a negative flow direction of the check valve.