Valve Accessories


The PRS-Dial is an excellent means of regulating outlet pressure at the valve regardless of incoming pressure fluctuations. The visible scale makes adjustment quick and easy. The regulator fits all Rain Bird PGA, PEB, PESB, PESB-R, EFB-CP, and BPES series valves  
Regulates and maintains constant outlet pressure between 15 and 100 psi (1.04 to 6.9 bar) within ±5 psi (±0.34 bar)  
Ergonomic design with snap-tight cover to prevent vandalism    
Waterproof dial cartridge eliminates fogging and binding  
Dial cartridge retrofits into all existing PRS-D units  
Schrader valve connects pressure hose gauge  
Easy field installation. PRS-Dial threads underneath the solenoid and adapter    
Corrosion-resistant glass-filled nylon for rugged performance
Application Information
Proper operation requires inlet pressure to be a minimum of 15 psi (1.04 bar) higher than desired outlet pressure  
For areas with very high pressure or uneven terrain, install sprinklers with PRS pressure regulating stems and/or SAM check valves  
When inlet pressure exceeds 100 psi (6.9 bar), a pressure regulating master valve or inline pressure regulator is required    
Rain Bird does not recommend using the pressure regulating module for applications outside the recommended flow ranges  
To reduce the effects of water hammer, Rain Bird recommends flow rates in the supply line not to exceed 7.5 ft/sec (2.29 m/s)  
For flows below 10 gpm (2.27 m3/h; 37.8 l/m), Rain Bird recommends the flow control stem be turned down two full turns from the fully open position


Pressure: Up to 100 psi (6.9 bar)  
Regulation: 15 to 100 psi (1.04 to 6.9 bar)  
Flow: Refer to Valve Flow Ranges chart

Model Listing

  • PRS-D: Pressure Regulating Module
  • Features

    Install Faster – the WC Series Wire Connectors quick to install and provides reliable moisture sealing for controller and valve electrical connections you can count on  
    Simplify Inventory – This is the only wire connector you’ll need! It is ideal for use on two wire decoder control systems  
    Avoid Call Backs – Locating and repairing a corroded wire splice costs your business time and money. Avoid unnecessary service call backs  
    Use for standard controllers, valve boxes and soil moisture sensors  
    Wire combinations ranging from 22ga to 8ga  
    Use on connections from 24 VAC to 600 VAC  
    UL 486D certified for direct burial  
    Waterproof silicone sealant protects against corrosion    
    UV-resistant material ensures product performance does not degrade even after long periods of exposure to sunlight


    Maximum Voltage Rating: 600V  
    Temperature Rating: 221° F (105° C)   
    Silicone Sealant Temperature: -45°F to 400°F (-43°C to 204°C)


    Height: 3 11/16" (9.37 cm)  
    Width: 1 1/2" (3.81 cm)  
    Depth: 1 3/16" (3.02 cm)

    Model Listing

  • WC20: Direct Bury Silicone Tube, Red Yellow Wire Nut, Bag of 20