RPZ Valves

We supply, install and are authorised testers of Reduced Pressure Zone valves. RPZ valves are used for high risk level 4 applications and working in a similar way to a double check valve. However they have the added protection that if a fault occurred with the first or second check valve, a relief port will open and release the water from the reduced pressure zone. This protects the incoming mains water from the undertaker from contamination. This means that the RPZ can be used for category 4 risk applications. As these valves are used for high risk applications they must be installed and serviced on an annual basis in accordance with national water regulations by a qualified engineer. If you are thinking of installing one of these valves you must inform the water supplier.