How to Install Sprinkler Valves

Sprinkler valves are the connections in an automatic sprinkler system that move water from the main supply line to the various zones in your yard.

The valves are generally underground, and you must connect them to both the main water supply line and the piping that leads to each zone. The valve should indicate which end connects to the manifold, and which end connects to the zone pipes.

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.

Things You Will Need

  • Wire nuts

About the Author

Based in Richmond, Va., Dawn Gibbs writes about topics such as history, fashion, literature, crafts, alternative medicine and healthy living. Her work has appeared on and several style websites. Gibbs holds a Bachelor of Arts in history from Virginia Commonwealth University.