Commercial-Grade Pressure Regulation for Large Manifolds
The Senninger High Flow Pressure Regulator is an absolute necessity for protecting expansive agricultural setups, sprawling commercial landscapes, and large residential drip zones. Manufactured by Senninger—a global leader in irrigation pressure control—these heavy-duty regulators are engineered to safely drop high inlet pressures down to a stable, reliable output. Supporting massive flow rates between 10 and 32 Gallons Per Minute (GPM), they are perfectly designed for systems that draw significant volumes of water. For ultimate protection, install this unit downstream of a commercial irrigation filter and your automated valves.
To seamlessly integrate into large PVC manifolds while maintaining excellent flow dynamics, these high-flow models feature a unique step-down threading design: a massive 1 1/4″ Female Pipe Thread (FPT) inlet and a 1″ FPT outlet. Available in two distinct models, the PRSH10 drops incoming pressure (up to 90 PSI) down to a safe 10 PSI, which is ideal for running delicate, thin-walled drip tape over long rows. The PRSH30 model drops incoming pressure (up to 110 PSI) down to 30 PSI, making it the perfect choice for heavy-duty 1/2″ poly tubing, standard drip emitters, and micro-sprinkler zones.
- Massive Flow Capacity: Safely and accurately regulates high-volume water flows ranging from 10 to 32 Gallons Per Minute (GPM).
- Prevents System Blowouts: Drops harsh municipal or pump pressures down to a strict 10 PSI or 30 PSI, protecting your downstream drip lines and tape from rupturing.
- Step-Down Threading: Features a large 1 1/4″ FPT inlet and a 1″ FPT outlet, designed to maintain optimal flow dynamics in large PVC head assemblies.
- Maintains Uniformity: Ensures that your drip emitters and micro-sprinklers operate at their exact specified flow rates without pressure-induced fluctuations.
- Commercial Durability: Built from high-impact engineering-grade thermoplastics to withstand intense agricultural and outdoor environments.
Detailed specifications for system planning.
| Specification | Details |
|---|---|
| Product Type | High Flow Pressure Regulator |
| Inlet Size | 1 1/4″ Female Pipe Thread (FPT) |
| Outlet Size | 1″ Female Pipe Thread (FPT) |
| Required Flow Range | 10 to 32 Gallons Per Minute (GPM) |
| PRSH10 Max Inlet Pressure | 90 PSI (Outputs exactly 10 PSI) |
| PRSH30 Max Inlet Pressure | 110 PSI (Outputs exactly 30 PSI) |
| Constant Pressure Rated | No (Must be installed after valves or timers) |
| Brand | Senninger |
Build your high-flow drip irrigation head assembly safely.
Step 1: Prep the Threads
Because this unit utilizes standard Pipe Threads, you must apply 3 to 4 wraps of Teflon tape to the male PVC fittings you will be threading into the regulator’s inlet and outlet. Do not use liquid pipe dope.
Step 2: Connect the Inlet
Thread a 1 1/4″ Male Pipe Thread (MPT) fitting from your upstream valve or filter into the larger 1 1/4″ FPT inlet of the Senninger 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″ Male Pipe Thread (MPT) PVC fitting or tubing adapter into the smaller 1″ FPT outlet of the regulator to transition into your irrigation mainline.
Step 4: Pressurize and Test
Turn on the irrigation valve. The internal diaphragm will instantly drop the pressure passing through the unit, safeguarding your downstream drip lines.
