Netafim 3/4in Low Flow Pressure Regulator 15 psi

Netafim 3/4in Low Flow Pressure Regulator 15 psi

Some drip components want a gentle, steady pressure that a municipal line or a booster pump rarely delivers on its own. This regulator takes whatever comes in, up to 145 psi, and sends out a nominal 15 psi. That is 1.1 bar, the lowest of the drip springs Netafim offers for its in-line model. It is meant for low flow work, rated from 0.35 to 4.4 GPM. In metric terms that is roughly 80 to 1,000 liters per hour. One unit covers a lateral or two, a short run of emitters or a single propagation bench. A stainless steel spring holds the preset, so there is no dial to drift or tamper with. The housing is black plastic that resists corrosion from water and fertilizer. Both ports are 3/4 inch female threads, so male adapters on each side complete the connection. Netafim places this model at the entry point of the pipe it protects. Its published curve for the 15 psi spring is plotted at an inlet of 2.0 bar, about 29 psi.

Choosing a 15 psi Pressure Regulator for Low Pressure Emitters

Start with the emitter or tubing data sheet and confirm its working range includes this preset. If the range starts higher, a stronger spring is the better fit. Total the emitter flow downstream and make sure it lands inside the rated flow range. Below the minimum, the spring cannot regulate cleanly. Install the regulator after the filter and zone valve, ahead of the first emitter. Seal the male threads with tape and tighten by hand plus a small turn. Overtightening a plastic port can split it. Feed the inlet with more than the preset plus the regulator's own head loss at your flow. Run the zone and read a gauge on the outlet to confirm the setting under load. Watch the far end of the line too, since friction keeps dropping pressure past the regulator. For long laterals, a second regulator part way down can even things out. Flush the line before fitting the regulator, and clean the upstream filter on a regular schedule.

Key Features

• 15 psi Nominal Outlet: 1.1 bar preset for low pressure drip.
• Low Flow Range: 0.35 to 4.4 GPM, about 80 to 1,000 L/h.
• High Inlet Tolerance: Up to 10 bar, or 145 psi, at the inlet.
• Inline Female Ports: 3/4 inch female threads at both ends.
• Fixed Stainless Spring: No adjustment to drift.
• Corrosion Resistant: Black plastic body.

Technical Specifications