Commercial-Grade Pressure Regulation with Transitional Threading
The Senninger Medium Flow Pressure Regulator (3/4″ FPT x 3/4″ MHT) is an incredibly versatile, problem-solving component for building mid-sized drip irrigation systems. Manufactured by Senninger—a global leader in irrigation pressure control—these heavy-duty regulators are engineered to safely drop high, fluctuating municipal or pump pressures down to a stable, reliable output. What makes this specific model unique is its transitional threading. With a 3/4″ Female Pipe Thread (FPT) inlet and a 3/4″ Male Hose Thread (MHT) outlet, it allows you to connect a rigid PVC manifold or pipe-threaded irrigation filter directly to a standard garden hose or hose-threaded drip tubing adapter.
Supporting a versatile flow range between 2 and 20 Gallons Per Minute (GPM), they are perfectly designed for systems that fall right between standard residential and large commercial flows. They are available in two distinct models to match your specific landscape needs. The PRSMPH12 drops incoming pressure (up to 90 PSI) down to a gentle 12 PSI, making it ideal for running thin-walled Drip Tape. The PRSMPH30 drops incoming pressure (up to 110 PSI) down to 30 PSI, making it the absolute industry standard for running 1/2″ poly tubing, punch-in emitters, and micro-sprinklers.
- Transitional Threading: Features a pipe-thread inlet (FPT) and a hose-thread outlet (MHT), eliminating the need to buy extra adapters when transitioning from a PVC manifold to drip tubing.
- Versatile Flow Capacity: Safely and accurately regulates moderate-to-high water flows ranging from 2 to 20 Gallons Per Minute (120 to 1,200 GPH).
- Prevents System Blowouts: Drops harsh incoming pressures down to strict, safe operating levels to protect your downstream tubing and emitters from rupturing.
- Maintains Uniformity: Ensures that your drip system operates at the exact manufacturer-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 | Medium Flow Pressure Regulator |
| Inlet Size | 3/4″ Female Pipe Thread (FPT) |
| Outlet Size | 3/4″ Male Hose Thread (MHT) |
| Required Flow Range | 2 to 20 Gallons Per Minute (120 to 1,200 GPH) |
| Body Material | High-Impact Thermoplastic |
| Constant Pressure Rated | No (Must be installed after valves or timers) |
| Brand | Senninger |
Senninger PRSMPH Model Chart
| Part | Regulated Output Pressure | Maximum Inlet Pressure | Flow Range |
|---|---|---|---|
| PRSMPH12 | 12 PSI | 90 PSI | 2 – 20 GPM |
| PRSMPH30 | 30 PSI | 110 PSI | 2 – 20 GPM |
Build your medium-flow drip irrigation head assembly safely.
Step 1: Prep the Inlet Threads
Because the inlet utilizes standard Pipe Threads (FPT), you must apply 3 to 4 wraps of Teflon tape to the 3/4″ Male PVC fitting or filter you will be threading into the regulator. Do not use liquid pipe dope.
Step 2: Connect the Inlet
Thread the PVC fitting or pipe-threaded filter from your upstream valve into the 3/4″ 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
Because the outlet utilizes Hose Threads (MHT), do NOT use Teflon tape on it. Simply thread a Female Hose Thread (FHT) tubing adapter directly onto the regulator. The adapter’s internal rubber washer will create the watertight seal.
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 tubing.
