Rain Bird PSI-M-15 pressure regulator with preset 1.0 bar outlet pressure

Constant 1.0 bar outlet pressure

The Rain Bird PSI-M-15 is a preset pressure regulator for irrigation systems that reduces water pressure to a constant nominal outlet pressure of 1.0 bar (15 psi). It is particularly suitable for drip and micro irrigation systems where controlled operating pressure is important for reliable and uniform water distribution.

The pressure regulator operates automatically and does not require manual adjustment. Changes in inlet pressure or water flow are compensated for within the specified operating range, helping to maintain a relatively constant outlet pressure of 1.0 bar.

Ideal for drip and micro irrigation

Drippers, micro-sprays and other micro irrigation components are designed to operate within specific pressure ranges. Excessive water pressure can affect their performance and place unnecessary stress on connected components. The PSI-M-15 reduces the available supply pressure to its preset pressure level.

With an outlet pressure of 1.0 bar, this model is particularly suitable for irrigation components designed to operate at relatively low pressure. The regulator can be used in both above-ground and below-ground irrigation installations.

Automatic pressure regulation

The PSI-M-15 uses a diaphragm-operated design to regulate pressure automatically. It requires no electrical power or separate controller. The outlet pressure is factory preset to 15 psi, corresponding to approximately 1.0 bar.

Unlike an adjustable pressure regulator, the required outlet pressure cannot be changed on the PSI-M-15. This simplifies installation and prevents accidental adjustment of the intended operating pressure.

¾" female connections

The Rain Bird PSI-M-15 features a ¾" female connection at both the inlet and outlet. This allows the regulator to be integrated easily into a suitably configured irrigation system.

The specified direction of water flow must be observed during installation. The pressure regulator is installed upstream of the irrigation components that require the reduced operating pressure.

Durable construction for irrigation systems

The housing is manufactured from rugged engineering-grade plastic. Rain Bird designed the PSI-M Series for irrigation applications requiring simple and reliable pressure regulation.

The PSI-M-15 is part of a range of regulators with different preset outlet pressures, allowing the appropriate model to be selected according to the operating pressure required by the irrigation components.

Technical data and specifications

• Manufacturer: Rain Bird
• Series: PSI-M
• Model: PSI-M-15
• Product type: Pressure regulator
• Outlet pressure: 1.0 bar
• Outlet pressure US: 15 psi
• Pressure setting: Factory preset
• Inlet: ¾" female thread
• Outlet: ¾" female thread
• Flow range: 0.45-5.0 m³/h
• Operating principle: Diaphragm operated
• Material: Engineering-grade plastic
• Installation: Above or below ground
• Application: Drip irrigation, micro irrigation and irrigation systems requiring reduced operating pressure

Frequently asked questions about the PSI-M-15

What pressure does the PSI-M-15 regulate to?

The Rain Bird PSI-M-15 is factory preset to an outlet pressure of 15 psi, corresponding to approximately 1.0 bar.

Can I adjust the outlet pressure?

No. The PSI-M-15 is a preset pressure regulator. Its nominal outlet pressure is fixed and does not require manual adjustment.

Is the PSI-M-15 suitable for drip irrigation?

Yes. The PSI-M Series is designed for irrigation applications requiring reduced and relatively constant water pressure, including many drip and micro irrigation systems.

What connection size does the regulator have?

The PSI-M-15 has a ¾" female connection at both the inlet and outlet.

Does the pressure regulator require electricity?

No. Pressure regulation is performed mechanically using a diaphragm. No electrical supply or connection to an irrigation controller is required.

Is the outlet pressure always exactly 1.0 bar?

The PSI-M-15 has a nominal preset outlet pressure of 1.0 bar. Actual outlet pressure may vary slightly depending on inlet pressure, flow and operating conditions.