Protect your heavy-duty irrigation system from damaging high-pressure surges with the 3/4" Netafim Pressure Regulator. Designed for larger spring and summer garden zones, light agricultural plots, and commercial greenhouse setups, this commercial-grade regulator safely drops high inlet pressures (up to 120 PSI) down to your desired operating level. What truly sets this regulator apart is its unmatched versatility: if you expand your system or change emitter types mid-season, you can instantly change the output pressure by simply swapping out the internal spring cartridge—no need to cut pipes or disconnect the unit! To ensure the internal mechanism stays free of debris, we strongly recommend installing a 3/4" Pipe Thread Screen Filter directly upstream.
Please review the flow constraints carefully. This unit requires a high minimum flow to operate correctly.
| Feature | Operational Note |
|---|---|
| Minimum Flow Requirement | System must draw at least 5.5 GPM (330 GPH). The regulator will not lower pressure if the flow is below this threshold. |
| Constant Pressure Warning | NOT designed to hold back water under constant pressure. It must be installed after your automated timer or manual shutoff valve. |
Build your high-flow head assembly correctly using these steps.
Step 1: Position After the Valve
Ensure your regulator is positioned downstream from your irrigation timer or manual shutoff valve. It cannot be under constant pressure.
Step 2: Install Upstream Filtration
Install a 3/4-inch pipe thread filter directly before the regulator to prevent debris from jamming the internal spring cartridge.
Step 3: Thread the Inlet
Wrap the male threads of your filter or valve with thread seal tape, and thread the 3/4" FPT inlet of the Netafim regulator securely onto it.
Step 4: Connect the Outlet
Wrap the 3/4" MPT outlet of the regulator with thread seal tape, and thread on your female PVC adapter or female poly tubing adapter to carry the water out to your plants.
Swapping Springs (If Needed):
If you need to change your output pressure later, simply unscrew the cap on the body of the regulator, pull out the old spring cartridge, drop the new one in, and tighten the cap.
Can I change the pressure on the 3/4" Netafim Pressure Regulator later?
Yes! The standout feature of the 3/4" Netafim Pressure Regulator is its interchangeable springs. You can easily alter the output pressure by unscrewing the cap and swapping the internal spring cartridge without ever disconnecting the unit from your irrigation line.
What is the flow range for the 3/4" Netafim Pressure Regulator?
This specific regulator is designed for high-capacity zones. It requires a minimum flow of 5.5 GPM (Gallons Per Minute) to operate correctly and can handle a maximum flow of up to 17.6 GPM.
Can the 3/4" Netafim Pressure Regulator be under constant pressure?
No, this device is not designed to withstand constant pressure. It must be installed "downstream" (after) your automated irrigation timer or manual shutoff valve.
What are the thread types on the 3/4" Netafim Pressure Regulator?
It features standard pipe threads: a 3/4-inch Female Pipe Thread (FPT) on the water inlet side, and a 3/4-inch Male Pipe Thread (MPT) on the water outlet side.
Please note the strict operational requirements for this unit:
Ensure your heavy-duty head assembly operates flawlessly with these necessary components:
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