About Pressure Relief Valves (PSV)
At PlumbersStock, we offer a wide selection of premium pressure relief valves. Also known as PSV valves (pressure safety valves), and pop-off valves, they are designed to protect your plumbing and heating systems from dangerous overpressurization.
Do not confuse them with PRV valves (pressure reducing valves). Those are different (for whole home regulation). The pressure relief/safety valves here are for boilers and water heaters and stuff like that. Whether you're installing a new system or replacing a worn-out safety valve, we’ve got the parts you need from trusted industry brands—all at competitive prices.
What Is a Pressure Safety Valve (Pop-Off Valve)?
A Pressure Safety Valve, often referred to as a pop-off valve, is a critical safety device found in a variety of residential, commercial, and industrial plumbing and HVAC systems. Its main function is to automatically release pressure from a system when it exceeds a predetermined limit. This rapid release prevents pressure from building to unsafe levels, which could otherwise lead to equipment damage, leaks, or catastrophic failure.
Common applications include:
- Water heaters
- Boilers
- Air compressors
- Heating systems
- Pressure tanks
- Steam generators
Pop-off valves are typically spring-loaded and preset to "pop" open when a specific pressure threshold is reached, releasing excess pressure and then resealing once normal conditions are restored.
Why Are PSV Valves Important?
Without a proper relief system like a PSV valve in place, your entire heating or plumbing system could be at risk. These valves are not optional—they’re safety-mandated components required by plumbing codes and building regulations. They provide peace of mind by acting as the last line of defense in case of pressure surge events.
Benefits of installing or replacing a reliable PSV valve include:- Preventing system overpressure,
- Avoiding potential equipment damage,
- Complying with plumbing safety codes,
- Ensuring safe operation of water heaters and boilers.
Shop PSV Valves at PlumbersStock. Choose from top-rated manufacturers known for durability and performance. We also offer detailed product descriptions, precise specifications, and customer-friendly support to help you find the right valve for your specific application.
