RPZ Valve Servicing: Small Device, Big Responsibility

An RPZ (Reduced Pressure Zone) valve is one of those critical pieces of infrastructure most people never notice - until something goes wrong. Its role is simple but vital: to protect the drinking water supply by preventing contaminated water from flowing back into the mains if pressure changes within a system.

In environments such as hospitals, schools, care homes, industrial sites, and commercial buildings, RPZ valves are often installed where there’s a higher risk of backflow contamination. When they’re working correctly, they quietly do their job in the background. When they aren’t maintained, the risk to water safety, and public health, can be significant.

RPZ Servicing

Why RPZ Valves Need Regular Servicing

RPZ valves are not a “fit and forget” solution. They must be tested, serviced, and certified at regular intervals to ensure they’re functioning as designed and remain compliant with regulations. Over time, components can wear, valves can fail, and pressure readings can drift - all of which compromises protection.

Despite this, RPZ servicing is often overlooked. One reason is that not many companies offer it. It requires specialist knowledge, trained engineers, and the correct equipment — which means it’s sometimes left unchecked or assumed to be covered elsewhere.

How Aqua Protec Supports RPZ Valve Servicing

At Aqua Protec, RPZ valve servicing is something we actively provide. Our engineers are trained to test, service, and certify RPZ valves properly, giving building owners and estates teams confidence that their water systems are protected and compliant.

We work with clients across healthcare, education, and commercial estates, helping them understand what RPZ valves they have, when they were last tested, and what action is needed to stay safe and compliant - without unnecessary disruption.

Why It Matters

Water safety isn’t just about temperature monitoring or routine sampling. Devices like RPZ valves play a crucial role in protecting potable water supplies, and when they’re forgotten, the consequences can be serious.

If you have RPZ valves on your estate and aren’t sure when they were last serviced, it’s worth checking. A small amount of proactive maintenance can prevent far bigger problems later on.

If you’d like to find out more about how Aqua Protec supports RPZ valve servicing and wider water system compliance, visit www.aquaprotec.co.uk or get in touch with our team