Introduction
This instruction manual provides essential information for the safe and effective installation, operation, and maintenance of the Pentair A2080000 Pressure Relief Valve. This valve is designed to protect pool and spa systems by automatically releasing excess pressure when it exceeds 75 PSI. Please read this manual thoroughly before proceeding with installation or operation.

Image of the Pentair A2080000 Pressure Relief Valve, showing its brass construction and threaded connections. A small lever is visible at the top for manual testing.
Safety Information
- Always depressurize the system before attempting any installation, maintenance, or repair.
- Ensure the valve is installed by a qualified professional in accordance with local codes and regulations.
- Do not tamper with the factory-set pressure relief setting.
- Wear appropriate personal protective equipment (PPE) during installation and maintenance.
Setup and Installation
- Preparation: Ensure the system is completely shut down and depressurized. Gather necessary tools and sealing materials (e.g., PTFE tape or pipe sealant).
- Location: Install the pressure relief valve in an accessible location on the system, typically on the discharge side of the pump or filter, where it can effectively monitor and relieve system pressure. Ensure the discharge port is directed to a safe drainage area, away from electrical components or areas where water discharge could cause damage.
- Connection: Apply appropriate thread sealant to the male threads of the valve. Carefully thread the valve into the designated port on your system. Use a wrench to tighten, ensuring a secure, leak-free connection. Do not overtighten.
- Discharge Piping: If required by local codes or for safety, connect a discharge pipe to the valve's outlet. This pipe should be adequately sized, sloped for drainage, and terminate in a safe location.
- System Start-up: Slowly repressurize the system and carefully check for any leaks around the valve connections.
Operating Principles
The Pentair A2080000 Pressure Relief Valve is a spring-loaded device designed to open automatically when the system pressure exceeds its factory-set limit of 75 PSI. When the pressure drops below this threshold, the valve will automatically close, preventing further water discharge. This mechanism protects your pool or spa equipment from damage due to over-pressurization.
A manual test lever is typically included on the valve. Briefly lifting this lever will open the valve, allowing a small amount of water to discharge. This action helps to clear any debris and verify the valve's operational integrity. Always ensure the discharge path is clear before performing a manual test.
Maintenance
- Regular Inspection: Periodically inspect the valve for any signs of corrosion, leaks, or physical damage. Ensure the discharge opening is clear of obstructions.
- Manual Testing: It is recommended to manually test the valve at least once a year by briefly lifting the test lever. This helps to ensure the internal components are not seized and the valve can operate freely. Observe for a brief discharge of water and ensure the valve reseats properly afterward.
- Cleaning: If debris is observed around the valve, gently clean the exterior. Do not attempt to disassemble the valve for internal cleaning, as this may compromise its factory setting and integrity.
- Replacement: If the valve shows signs of continuous leakage, fails to open during a pressure event, or does not reseat properly after a manual test, it should be replaced immediately by a qualified technician.
Troubleshooting
- Valve Leaks Continuously:
- Possible Cause: Debris lodged under the seat, worn internal components, or system pressure consistently near or above 75 PSI.
- Solution: Perform a manual test to flush out debris. If leaking persists, check system pressure. If system pressure is normal, the valve may need replacement.
- Valve Does Not Open During High Pressure:
- Possible Cause: Valve seized due to corrosion or debris, or system pressure not reaching 75 PSI.
- Solution: Perform a manual test. If the valve remains unresponsive, it must be replaced. Verify system pressure with a gauge.
- Water Discharge is Insufficient:
- Possible Cause: Partially obstructed discharge port or piping.
- Solution: Inspect and clear any obstructions from the discharge path.
Specifications
| Attribute | Detail |
|---|---|
| Model Number | A2080000 |
| Brand | Pentair |
| Pressure Setting | 75 PSI |
| Connection Size | 1-1/2 x 2 inches (NPT) |
| Item Weight | 4 ounces |
| Manufacturer | Pentair Water |
| ASIN | B006H3Z9IC |
| Date First Available | May 12, 2012 |
Warranty Information
This Pentair product is covered by a limited manufacturer's warranty. For specific details regarding warranty terms, conditions, and duration, please refer to the warranty documentation included with your purchase or visit the official Pentair website. Keep your proof of purchase for warranty claims.
Customer Support
For technical assistance, replacement parts, or further information regarding your Pentair A2080000 Pressure Relief Valve, please contact Pentair Customer Support. Contact details can typically be found on the Pentair official website or on your product packaging.





