The Irritrol 2711DPR Valve (2700 Series) is a premium 3/4" residential irrigation valve designed to offer the perfect combination of system protection and user-friendly maintenance. This AC-powered valve features a built-in atmospheric vacuum breaker, serving as an all-in-one anti-siphon unit that prevents contaminated outdoor water from backing up into your clean household supply.
What sets this model apart is its incredibly convenient threaded Jar-Top bonnet. Instead of wrestling with screws in tight spaces, you can easily unscrew the top by hand to inspect or clean the internal diaphragm. Complete with precise flow control and a robust pressure range, it's the ideal choice for automating everything from lawn sprinklers to specialized raised bed drip irrigation systems safely and efficiently.
Detailed specifications for system planning.
| Specification | Details |
|---|---|
| Valve Configuration | Anti-Siphon (Above Ground Installation) |
| Operating Flow Range | 0.25 to 30 Gallons Per Minute (GPM) |
| Operating Pressure Range | 10 to 150 PSI |
| Inlet / Outlet Size | 3/4" Female Pipe Thread (FPT) |
| Solenoid Power | 24 VAC (Electric) |
| Additional Features | Flow Control, Threaded Jar-Top Bonnet, Manual Shut-off |
Follow these steps to safely plumb and wire your anti-siphon valve.
Step 1: Determine the Height
Anti-siphon valves MUST be installed vertically and above ground. Mount the valve a minimum of 6 inches to 12 inches higher than the absolute highest emitter or sprinkler head in your irrigation zone.
Step 2: Plumb the Connections
Using Teflon tape, thread 3/4" male PVC adapters into the inlet and outlet. Make sure the directional arrows on the valve match the flow of your water.
Step 3: Connect the Wiring
Run direct burial wire from your AC controller. Connect one wire from the 24V solenoid to the common wire, and the other to your designated station wire. Secure all splices with waterproof wire nuts.
Step 4: Test and Adjust
Turn on the main water supply and activate the zone via your timer. Use the top flow control dial to fine-tune the water output for optimal system performance.
Can I install this anti-siphon valve in an underground valve box?
No. For the atmospheric vacuum breaker to function properly and prevent backflow, this valve must be installed completely above ground, at least 6 inches higher than the tallest emitter in the zone.
What is the advantage of the Jar-Top bonnet?
The threaded jar-top design allows you to quickly unscrew the top of the valve by hand, without tools. This makes routine cleaning, winterizing, or replacing the internal diaphragm incredibly easy.
Do I need a separate backflow preventer if I use this valve?
Typically, no. The built-in atmospheric vacuum breaker serves as the backflow prevention device for that specific irrigation zone, protecting your main water line from potential cross-contamination.
Why is mid-May the perfect time to install a Jar-Top Anti-Siphon valve?
As mid-May brings heavy spring fertilizing and the expansion of vegetable gardens, installing an anti-siphon valve ensures fertilizer and soil contaminants cannot back up into your homeās drinking water.
Furthermore, the tool-free jar-top makes the essential "spring flush" effortless. You can easily open the valve to clear out winter debris before starting your daily summer watering schedules.
Before purchasing, please verify your system requirements:
Ensure a professional, reliable installation with these essential accessories:
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