Hold the valve against the manifold so that the arrow on the valve points away from the manifold. This arrow indicates the direction of water flow, and should never point back at the manifold.
Screw the manifold connector onto the threaded portion of the valve that faces the manifold. Insert the connector into the manifold hole and tighten the nut to secure the valve to the manifold. Repeat with each valve and manifold hole.
Coat the threaded end of the turn seal connector in three layers of Teflon tape. Wrap the tape clockwise around the threaded end. Screw the threaded end of the turn seal connector into the end of the valve that faces away from the manifold. Repeat with each valve.
Remove all the caps on the ends of the turn seal connectors. Insert the sprinkler pipes into the caps and then into the turn seal connector. Re-tighten each cap to secure the piping.
Connect the wiring of each valve to the common wires in the sprinkler system, following the manufacturer's directions. Cap each connection with a wire nut.