How To Install Automatic Sprinkler Valves
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Wiring Sprinkler Control Valves
Whether you take a uncomplicated sprinkler system or a complex one with five or more circuits, each excursion must exist controlled by its own sprinkler control valve. Arrange your system so that each excursion controls a specific portion of your g. For example, one may exist used to control an array of micro-sprinklers or baste emitters for a flowerbed and containers.
Measure your water catamenia rate to determine the size piping that should run from your supply source to the command valves. A supplier of sprinkler supplies tin can give you a worksheet to assistance y'all plan your system so each circuit will have enough h2o pressure level. You will probable have one or two circuits plow on at a time.
In nigh cases, you will want to command all—or, in a very big organization, one-half—of the valves with a single timer that will tell each circuit when to plow on and off. The easiest way to organize this is in a manifold system. Manifolds are made by sprinkler manufacturers and are easy to get together. You tin buy a organization with a set number of circuits or put together whatever number of circuits.
It's of import to have some grade of backflow prevention to brand sure irrigation water cannot dorsum upwards into the house's drinking water supply. Anti-siphon control valves have their ain backflow prevention. They must be positioned at least eight inches above the highest sprinkler head.
Place them about the timer so you will non have a long wire run. Install a shutoff valve just prior to the command valves. The valves are simply put together with threaded parts; you do non have to mucilage them. From the valves, run Schedule 80 PVC pipage, starting with a threaded slice downward into the trench for the pipage runs to the sprinkler head.
If you don't want valves sticking up out of the ground, or if your highest sprinkler head is likewise high for anti-siphon valves, consider installing in-line valves instead (shown at left). These tin exist installed at any height, but you must showtime install a divide code-canonical backflow preventer prior to the in-line valves.
Yous tin can identify these valves in a box that is partially buried. Dig a fairly large pigsty to give yourself room to work and then install the box and the valves. They also assemble without glue and utilize Schedule 80 PVC parts. From the valves, run pipage through trenches to the sprinkler heads.
Wiring Sprinkler Command Valves
Use low-voltage insulated cable approved for burial (ordinarily AWG-14 or -18) to connect the timer to the control valves. You will demand multi-strand wire with enough wires for each valve plus i more to connect the valves to the timer. (Then, if you lot have three valves, you'll need four-strand wire.)
If there'due south a possibility you'll add on to your irrigation organisation, use wire with extra strands and then you tin can add valves without having to rewire the entire system.
Later connecting the wires, run them hush-hush to the timer. Make use of sprinkler trenches where you tin, placing wires underneath the pipes and loosely looping around each valve and bend in the trench.
Run the wire above ground when you go to the timer, and secure it to a wall or other surface to go on information technology from getting snagged. Make sure the timer is not plugged in while you are wiring.
Two wires run from each control valve; connect one of them to the common wire that runs to each valve and the other to the desired station number. Attach the timer and then connect the common wire to its screw terminal, remembering which excursion uses which station.
Source: https://www.hometips.com/diy-how-to/sprinkler-control-valves-wiring.html
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