![]() ![]() Sediment Build-up: Sediment and debris inside the valve can cause it to leak.Faulty Pressure Relief Valve: Over time, pressure relief valves can wear out or malfunction, leading to leaks.Excessive Pressure: If the pressure in your boiler is too high, the relief valve may leak to release the built-up pressure.Here are some common reasons for a leaking pressure relief valve: Why a faulty pressure relief valve is a boiler part that can fail and lead to expensive repairs Possible Causes of a Leaking Boiler Pressure Relief Valveīefore attempting any fixes, it’s essential to identify the root cause of the leak. You can find a prv anywhere on a system but with a combi, it’s mostly inside the casing. Without a relief valve, the pressure can continue to grow until another component fails in the boiler and pressure is released. This protects the expensive parts of the boiler from damage due to high pressure. It sends system water into the overflow pipe outside until pressure has gone down. In normal operation, the valve is closed and no water passes through.īut if the pressure in the system exceeds the limit – normally 3 bar, the valve opens to relieve the pressure. This type of valve sets a limit on the rise of pressure in a boiler. If the pressure inside the boiler exceeds safe levels, the pressure relief valve prevents potential disasters by venting the excess pressure outside.Ī pressure relief valve (prv), also called a safety relief valve, is one of the most important types of safety valves. Its primary function is to release excess pressure that builds up inside the boiler. The boiler pressure relief valve is a crucial safety component in your heating system. Understanding the Boiler Pressure Relief Valve Before we delve into the solutions, let’s understand the importance of the pressure relief valve and why it may leak. This issue can occur due to various reasons, but fret not, as we are here to provide you with step-by-step instructions to resolve this problem efficiently. If you’re experiencing a leaking boiler pressure relief valve, you’re not alone. ![]()
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