Rain Bird PRSDIAL PRS-Dial Valve Pressure-Regulating Module

Rain Bird PRSDIAL PRS-Dial Valve Pressure-Regulating Module

Brand: Rain Bird | SKU: PRSDIAL

Product Overview

Add adjustable outlet-pressure control to a compatible Rain Bird irrigation valve with the PRS-Dial module. It installs between the valve bonnet and solenoid assembly, using a visible dial to select pressure. Check the exact host valve, zone flow and available inlet pressure before ordering; this is a valve accessory, not a complete valve or a pressure booster.

Key Features

• Visible dial for adjusting the regulated outlet pressure.
• Waterproof dial cartridge and snap-tight protective cover.
• Schrader connection for checking pressure with a separately selected hose gauge.
• Glass-filled nylon housing.
• Fits the specified Rain Bird commercial valve families.

Common Uses

• Adding adjustable pressure regulation to a compatible zone valve.
• Tuning an irrigation zone where supply pressure varies within the published application limits.

Technical Specifications

• Merchant SKU: PRSDIAL; manufacturer model: PRS-D / PRS-Dial.
• Compatible families listed in the current technical specification: PGA, PEB, PESB, PESB-R, EFB-CP and BPES.
• Published adjustable outlet range: 15–100 psi; accuracy: ±5 psi.
• Required pressure differential: inlet at least 15 psi above the desired outlet pressure.
• Published operating pressure: up to 100 psi; manufacturer requires an upstream regulating master valve or inline regulator when inlet pressure exceeds 100 psi.
• Maximum temperature: 150°F (66°C), also subject to the host valve’s limits.
• Flow capacity depends on the exact host valve; use its applicable operating range rather than assigning one universal GPM rating.

Compatibility & Installation Notes

Confirm the exact valve model and the planned flow before installation. The module is not a universal pipe-mounted regulator and does not supply the valve, solenoid or pressure-checking gauge.

Follow the pressure differential, inlet-pressure limit and host-valve limits together. A selectable dial range does not guarantee that every setpoint is available from every supply pressure. The module regulates downward and cannot boost low pressure.

Shut off the water supply before installing the housing below the solenoid and adapter. Follow the installation guide’s flow-control and gauge-adjustment procedure, then verify operating outlet pressure with the zone running.

For supply pressure above 100 psi, provide the upstream pressure regulation required by Rain Bird. Check the site’s head-level pressure and drainage needs separately on steep or high-pressure systems.

Frequently Asked Questions

Is PRSDIAL a complete irrigation valve?

No. It is a pressure-regulating module for specified Rain Bird valve families. The host valve and pressure-checking gauge are selected separately.

How much pressure headroom does it need?

Rain Bird requires inlet pressure at least 15 psi higher than the desired outlet pressure. The inlet-pressure and host-valve limits must also be met.

Which valve families are listed?

The current specification lists Rain Bird PGA, PEB, PESB, PESB-R, EFB-CP and BPES families. Confirm the exact model and its flow range before installing.

Can it raise a low supply pressure?

No. PRS-Dial regulates pressure downward. It cannot boost pressure, and Rain Bird requires upstream regulation when inlet pressure exceeds 100 psi.

Why Buy from Big Frog Supply?

Choose PRS-Dial when a compatible valve needs an adjustable pressure target rather than manual flow restriction alone. The 15 psi headroom requirement and model-specific host-valve flow limits help determine whether it suits the zone, while the Schrader gauge connection allows the operating outlet pressure to be checked during adjustment.