Rain Bird PSI-M30 Heavy-Duty Inline Pressure Regulator (3/4″ BSP)

Keep your garden irrigation running smoothly with the Rain Bird PSI-M30. Engineered to eliminate pressure spikes, this commercial-grade limiter guarantees that your micro-sprays and drip networks receive optimal water delivery without any risk of system failure.

Fluctuating mains pressure can quickly wreck an irrigation setup. The authentic Rain Bird PSI-M30 steps in as your line’s first defence, dropping high incoming pressure down to a perfectly stable 2.1 bar (30 PSI). It is particularly brilliant for slightly larger irrigation zones, taller vegetable beds, or micro-sprinkler networks that need that extra bit of push compared to standard drip lines. Installing this means goodbye to blown-out fittings, split hoses, and uneven watering patches across your lawn or allotment.

Standout Benefits & Product Features:

• Engineered by Industry Experts: Built by Rain Bird to meet rigorous trade standards, offering dependable, long-term performance that cheaper alternatives simply cannot match.
• Optimised 2.1 Bar Output: Specially calibrated to keep micro-nozzles operating at peak efficiency, preventing water atomisation (mist) and stopping wind drift from wasting your water supply.
• Massive Intake Tolerance: Effortlessly manages high incoming pressure surges from 1.5 bar all the way up to 7.0 bar, making it ideal for high-pressure UK mains supplies.
• Weatherproof & Chemically Inert: Manufactured using top-tier, UV-stabilised engineering polymers and internal stainless steel springs to endure freezing British winters, hot summers, and liquid feed applications.
• Universal Pipe Integration: Features 3/4″ Female BSP threads (3/4″ F) on both ends, allowing rapid connection to manifold boxes, standard outside taps, or disk filters.

Best Suited For:

The Rain Bird PSI-M30 excels in micro-irrigation zones requiring a bit more pressure to maintain uniform flow across longer distances. It pairs perfectly with professional porous pipes, greenhouse misting systems, boundary hedge drippers, and larger raised-bed irrigation layouts. It functions flawlessly whether mounted out in the open or housed safely inside a subterranean valve box.

Technical Profile:

• Brand: Rain Bird
• Model Code: PSI-M30
• Connection Size: 3/4″ Female BSP (Inlet & Outlet)
• Pressure Intake Range: 1.5 to 7.0 bar
• Regulated Output: 2.1 bar (30 PSI)
• Flow Accommodation: 450 – 5,000 L/h (0.45 to 5.0 m³/h)
• Core Material: High-impact industrial thermoplastic

Installation Advice: To ensure proper water pressure reduction, double-check that the embossed arrow on the plastic casing points in the direction of your system’s water flow before securing the threads.