High-Capacity Regulation with Interchangeable Spring Cartridges
The Netafim 1 1/2″ Pressure Regulator is a heavy-duty, commercial-grade component engineered specifically to protect large agricultural systems and expansive landscape irrigation setups. Capable of supporting a highly versatile flow range from 11 to 35 Gallons Per Minute (GPM), this unit safely drops fluctuating municipal or pump pressures down to a stable, reliable output. Featuring robust 1 1/2″ Male Pipe Threads (MPT) on both the inlet and outlet, it integrates seamlessly into PVC manifolds downstream of your commercial irrigation valves and high-capacity filters.
What truly sets this Netafim regulator apart from standard units is its highly innovative, modular design. Rather than having to unscrew and replace the entire 1 1/2″ housing if your crop’s pressure requirements change, you can simply unthread the top cap and swap out the two internal spring cartridges. This allows you to instantly alter the output pressure without ever disconnecting the regulator from your hard-plumbed manifold. Rated for maximum inlet pressures up to 120 PSI, this regulator delivers the ultimate in commercial adaptability and blowout protection.
- Interchangeable Springs: Change the output pressure of your system at any time without disconnecting the mainline by simply swapping the internal spring cartridges.
- High Flow Capacity: Safely and accurately regulates high-volume water flows ranging from 11 to 35 Gallons Per Minute (GPM).
- Prevents System Blowouts: Drops harsh incoming pressures (up to 120 PSI) down to strict, safe operating levels to protect your downstream tubing and tape.
- Standard 1 1/2″ Threads: Features 1 1/2″ MPT connections on both sides, ensuring secure integration directly into standard PVC pipe manifolds.
- Commercial Durability: Built from heavy-duty plastics designed to withstand intense agricultural environments and prolonged sun exposure.
Detailed specifications for system planning.
| Specification | Details |
|---|---|
| Product Type | High Flow Adjustable Pressure Regulator |
| Inlet / Outlet Size | 1 1/2″ Male Pipe Thread (MPT / NPT) |
| Required Flow Range | 11 to 35 Gallons Per Minute (GPM) |
| Maximum Inlet Pressure | 120 PSI |
| Regulation Mechanism | Interchangeable Spring Cartridges (Uses 2) |
| Constant Pressure Rated | No (Must be installed after valves or timers) |
| Brand | Netafim |
Build your high-flow drip irrigation head assembly safely.
Step 1: Prep the Threads
Because this unit utilizes standard 1 1/2″ Pipe Threads, you must apply 3 to 4 wraps of Teflon tape to the female PVC fittings you will be threading onto the regulator’s inlet and outlet. Do not use liquid pipe dope.
Step 2: Connect the Inlet
Thread a 1 1/2″ Female Pipe Thread (FPT) fitting from your upstream valve or filter onto the MPT inlet of the Netafim regulator. Crucial: Look closely at the body and ensure the directional flow arrow points downstream toward your fields.
Step 3: Connect the Outlet
Thread a 1 1/2″ Female Pipe Thread (FPT) PVC fitting or tubing adapter onto the MPT outlet of the regulator to transition safely into your irrigation mainline.
Step 4: Changing Springs (When Needed)
If you need to change your output pressure in the future, simply turn off the water supply, unscrew the large cap on top of the regulator, remove the two existing spring cartridges, drop in the new replacement cartridges, and hand-tighten the cap back on.
