Understanding Pressure Reducing Valves (PRVs)

What is a Pressure Reducing Valve?

A Pressure Reducing Valve (PRV) is a plumbing device used to control the water pressure coming into your home or business. It automatically reduces high incoming water pressure to a safer, more manageable level. This is crucial for protecting pipes and fixtures from damage caused by excessive pressure.

Why Do You Need a Pressure Reducing Valve?

High water pressure can cause serious damage to your plumbing system over time. It can lead to leaks, burst pipes, and inefficient water usage. A PRV helps to extend the lifespan of your plumbing system and reduce water wastage. It ensures that the pressure stays within a safe range, thus avoiding costly repairs or replacements for appliances like water heaters, washing machines, and dishwashers.

How Does a Pressure Reducing Valve Work?

A Pressure Reducing Valve uses a spring-loaded mechanism to control the water pressure. When water flows through the valve, the internal components adjust the flow, reducing the pressure to a preset, safe level before the water enters your home or business plumbing system. PRVs can be adjusted to meet the required pressure based on the local water supply and the type of plumbing system in place.

Where Are Pressure Reducing Valves Installed?

PRVs are typically installed where the main water line enters your property, often just before the water meter or main shutoff valve. This allows the PRV to regulate the pressure for the entire plumbing system, ensuring that all water fixtures and appliances receive the correct pressure. In some cases, a second PRV may be installed for specific high-demand appliances, like irrigation systems or pools, to keep the pressure at optimal levels for those systems.

What Are the Signs That You Need a Pressure Reducing Valve?

If you’re experiencing any of the following issues, it’s time to consider installing a PRV:

• Frequent leaks or bursts in pipes or fixtures.
• High water bills due to excessive water flow.
• Appliances like washing machines or water heaters constantly breaking down.
• Sudden spikes in water pressure, making faucets hard to control or causing water hammer.
• Visible signs of plumbing wear, such as corroded pipes or damaged seals.

Benefits of a Pressure Reducing Valve:

• Prevents damage to plumbing pipes and appliances caused by excessive pressure.
• Improves the overall efficiency of your water system.
• Helps to reduce water wastage by maintaining consistent water pressure.
• Protects your home from potential flooding or water damage due to burst pipes.
• Can extend the lifespan of your water appliances, saving you money on repairs and replacements.

Types of Pressure Reducing Valves

There are several different types of PRVs available, depending on your needs:

• Adjustable PRVs: These valves allow for manual adjustments to the pressure, giving you control over how much the pressure is reduced. This type is suitable for homes with varying water pressure.
• Non-adjustable PRVs: These valves are pre-set to a specific pressure level and cannot be adjusted. They are more commonly used in commercial settings or where a specific pressure level is required.
• Angle PRVs: These PRVs are installed at a 90-degree angle and are typically used when there are space constraints in the plumbing layout.

When Should You Replace Your Pressure Reducing Valve?

Like any other plumbing component, a PRV can wear out over time. If you notice issues such as fluctuating water pressure or continuous pressure spikes, it might be time to replace your PRV. Regular maintenance checks by a licensed plumber can help identify any problems early and prevent costly repairs later.

Conclusion

A Pressure Reducing Valve is an essential part of your plumbing system. By ensuring that the water pressure entering your home remains at a safe and consistent level, a PRV protects your pipes, fixtures, and appliances, helping to avoid damage and improve overall water efficiency. If you suspect that your plumbing system could benefit from a PRV, consult with a professional plumber who can assess your system and recommend the best solution for your needs.