Installing a Sprinkler System Valve

What You'll Need
Sprinkler System Valve
Adjustable Wrenches
Teflon Tape

A sprinkler system valve is a necessary component of the entire sprinkler system. It controls the flow of water and also prevents its backflow. There are many different types of sprinkler system valves that can be installed in a sprinkler system. The most common nowadays are automatic or electrical sprinkler valves. Other types of valves include anti-siphon valves, ball valves, and gate valves. Here is how to install a sprinkler system valve.

Step 1 – Choose a Valve

Choose which type of sprinkler system valve to install. Go to the home improvement store and make sure to purchase one with good quality. Brass types provide longer lasting use, but cost more money than other types of sprinkler valves. There are also valves that make use of PVC. Although they may not provide better durability, they may provide similar quality of water distribution and water flow control.

Step 2 – Flush the Entire Water System

Allow the water to run through the whole water system to make sure that no debris is left on the water lines that may cause damage to the valve. Before installing a sprinkler system valve, shut off the water supply on the entire home or the sprinkler system alone. Usually, the sprinkler system is directly connected to the main water supply so the main water supply should be cut off entirely when working with the installation of the valve. 

Step 3 – Plan out the Installation

The valve needs to be installed in a location that is at least 6-inches higher than the highest sprinkler head. The location of the installation should also be very accessible to allow easier repairs when needed. Typically, the valve is installed near the water pump outside the house. Before proceeding with the installation, check out the local codes to determine if a working permit is required.

Step 4 – Install the Necessary Piping

Install the necessary pipes, elbows and fittings where the sprinkler system valve will be installed. Remember that the valve is better installed on a vertical pipe to allow it to be higher than all sprinklers on the lawn or ground. Make sure to connect the necessary hardware tightly.

Step 5 – Apply Teflon Tape on the Valve and Pipe Threads

To ensure that no pressure leaks occur, wrap at least one or two wraps of Teflon tape on the male threads of the adapters on the pipe.

Step 6 – Connect the Valve to the Vertical Pipe

Connect the male threads of the pipes to the valve inlet and outlet to secure the valve into place. Installing a valve is as easy as screwing a screw in place, however, some valves may require additional installation procedures. Refer to the manufacturer’s manual for other installations needed.

Step 7 – Check for Leaks

After securing the valve into place, turn on the water supply and let the sprinkler system run. Check if there are any leaks caused by the water pressure. If none, the installation is successful.