The Irritrol 205 Series 1" Globe Valve with Flow Control (205TF) is renowned across the irrigation industry for its bulletproof dependability. Constructed from heavy-duty, UV-resistant and corrosion-proof PVC, this valve is engineered with a high-flow, low-friction-loss design that maximizes system efficiency. It is the perfect choice for both residential landscapes and demanding commercial applications.
What truly sets the 205 Series apart is its incredible tolerance for challenging water sources. Equipped with a rugged, nylon-reinforced Buna-N diaphragm, it reliably operates in both clean municipal water and dirty water applications, such as ponds or wells, without seizing up. Designed to be installed underground within a standard valve box, this 24V AC valve features a built-in flow control handle, allowing you to manually fine-tune the precise flow rate for your specific drip zones or sprinkler heads.
Detailed specifications for system planning.
| Specification | Details |
|---|---|
| Valve Configuration | Inline Globe Valve |
| Operating Flow Range | 0.25 to 30 Gallons Per Minute (GPM) |
| Operating Pressure Range | 10 to 150 PSI |
| Inlet / Outlet Size | 1" Female Pipe Thread (FPT) |
| Solenoid Power | 24 VAC (Electric) |
| Manufacturer Warranty | 5 Years |
Follow these steps to successfully install your inline valve.
Step 1: Prepare the Enclosure
Because this is an inline globe valve without an integrated atmospheric vacuum breaker, it must be installed underground inside a protective plastic valve box. Dig a trench deep enough for the mainline and the box.
Step 2: Connect the Plumbing
Wrap Teflon tape around your 1" male PVC adapters and thread them into the inlet and outlet of the valve. Pay close attention to the flow direction arrows on the side of the valve body to ensure proper orientation.
Step 3: Wire the Solenoid
Run 24V direct burial wire from your irrigation controller to the valve box. Use silicone-filled waterproof wire nuts to splice one solenoid wire to the common wire and the other to the zone-specific station wire.
Step 4: Flush and Fine-Tune
Turn on the main water supply. Open the internal bleed screw to manually activate the valve and flush out any dirt or PVC shavings from installation. Close the bleed screw, then adjust the top flow control dial to fine-tune the zone's pressure.
What makes the Irritrol 205 Series good for dirty water?
The valve features a heavy-duty, nylon-reinforced Buna-N diaphragm and robust internal clearances. This allows small sediment and debris from ponds or wells to pass through without lodging inside and forcing the valve to stay open.
Does this valve need to be installed underground?
Yes. The Irritrol 205 is an inline globe valve, not an anti-siphon valve. It is designed to be installed underground inside a protective valve box to shield it from freezing weather and physical damage.
Can I adjust the water flow on this valve?
Yes, this specific model (205TF) features a built-in flow control handle on the top. You can easily rotate this dial to restrict water flow and dial in the perfect operating pressure for your specific zone.
What voltage does the Irritrol 205TF require?
It utilizes a standard 24-volt AC (Alternating Current) solenoid. It must be hardwired to a traditional plug-in irrigation controller and will not function with DC battery-operated hose-end timers.
Why is mid-May the ideal time to install an Irritrol 205 series valve?
With mid-May warming temperatures causing an increase in spring algae and sediment in ponds and wells, installing the debris-tolerant Irritrol 205 Series right now ensures your system runs flawlessly before peak summer irrigation demands begin.
Before purchasing, please verify your system design:
Ensure a professional, durable installation with these essential accessories:
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