1. Product Overview
The Rain Bird DIAPH150PG is a replacement diaphragm assembly specifically designed for Rain Bird PGA 1-1/2 inch valves. This kit includes the diaphragm and a screen, crucial components for maintaining the proper function of your irrigation valve. Replacing a worn or damaged diaphragm can restore optimal performance to your sprinkler system.
Image showing the Rain Bird PGA Replacement Valve Diaphragm 1-1/2 inch, including the diaphragm and screen components.
2. Safety Information
- Always turn off the main water supply to the irrigation system before attempting any repairs or maintenance.
- Depressurize the system by opening a nearby faucet or valve after turning off the water supply.
- Wear appropriate personal protective equipment, such as gloves and eye protection, during installation.
- Ensure all connections are secure to prevent leaks once the repair is complete and water supply is restored.
3. Package Contents
The Rain Bird DIAPH150PG replacement kit includes:
- One (1) 1-1/2 inch Diaphragm
- One (1) Screen
4. Setup and Installation
Follow these steps to replace the diaphragm in your Rain Bird PGA 1-1/2 inch valve:
- Turn Off Water Supply: Locate the main shut-off valve for your irrigation system and turn it off completely.
- Depressurize System: Open a sprinkler head or a drain valve in your system to release any remaining water pressure.
- Access the Valve: If the valve is buried, carefully clear away any dirt or debris to expose the valve body and bonnet screws.
- Remove Bonnet Screws: Using an appropriate screwdriver, carefully loosen and remove all screws securing the valve bonnet (top cover) to the valve body. Keep track of these screws.
- Remove Old Diaphragm: Gently lift the bonnet off. The old diaphragm assembly will likely be attached to the underside of the bonnet or resting in the valve body. Remove the old diaphragm and screen.
- Clean Valve Body: Inspect the inside of the valve body for any dirt, sand, or debris. Clean the sealing surfaces thoroughly to ensure a proper seal with the new diaphragm.
- Install New Diaphragm: Place the new screen into its designated slot in the valve body. Then, carefully position the new diaphragm into the valve body, ensuring it is seated correctly and aligned with the screw holes. The diaphragm has a specific orientation; ensure the small bleed hole is positioned correctly (refer to your original valve manual if unsure).
- Reattach Bonnet: Place the valve bonnet back onto the valve body, aligning the screw holes. Insert and hand-tighten the screws initially, then tighten them evenly in a crisscross pattern to ensure a uniform seal. Do not overtighten.
- Restore Water Supply: Slowly turn the main water supply back on. Listen for any leaks and observe the valve's operation.
- Test System: Activate the irrigation zone controlled by this valve to ensure it opens and closes correctly and that there are no leaks.
5. Operating Instructions
As a replacement component, the diaphragm itself does not have operating instructions. Its function is integral to the proper operation of the Rain Bird PGA valve. Once installed correctly, the valve should operate as designed by your irrigation controller. Ensure your irrigation controller is programmed correctly for the desired watering schedule.
6. Maintenance
- Regular Inspection: Periodically inspect your irrigation valves for signs of leaks or improper operation.
- Screen Cleaning: The included screen helps filter debris. If your valve frequently malfunctions or has reduced flow, the screen may be clogged and require cleaning. Follow the installation steps to access and clean the screen.
- Winterization: In cold climates, ensure your irrigation system, including valves, is properly winterized to prevent freeze damage.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Valve leaks from bonnet | Diaphragm not seated correctly, screws not tightened evenly, damaged diaphragm. | Turn off water, re-open valve, ensure diaphragm is seated properly, tighten screws evenly. Replace diaphragm if damaged. |
| Valve does not open | Clogged screen, debris under diaphragm, faulty solenoid (not part of this kit). | Turn off water, clean screen and valve interior. Check solenoid function. |
| Valve does not close | Debris under diaphragm, diaphragm damaged, faulty solenoid (not part of this kit). | Turn off water, clean valve interior and diaphragm. Check solenoid function. |
8. Specifications
| Specification | Detail |
|---|---|
| Model Number | 209675 |
| Compatible Valve Size | 1-1/2 inch Rain Bird PGA Valves |
| Item Weight | 8 ounces |
| Product Dimensions | 6 x 4 x 1 inches |
| Manufacturer | Rain Bird |
9. Warranty and Support
For specific warranty information regarding the Rain Bird PGA Replacement Valve Diaphragm, please refer to the official Rain Bird website or contact their customer support directly. Rain Bird products are designed for durability and performance, and their support team can assist with any product-related inquiries.
Rain Bird Customer Support: Please visit the official Rain Bird website for contact information and additional resources.
