RPZ valves: RPZ Valve Testing, Installation & Maintenance | Water Hygiene Services for your Facilities

Titan Mechanical Services is one of the UK's leading water hygiene service providers. We operate as a specialist mechanical contractor in the water treatment industry, working with large facilities and various blue chip clients nationwide. As part of the comprehensive range of water hygiene services we offer; we can provide a full suite of RPZ valve services for your facilities' water system. Our RPZ valve services include RPZ valve installation, RPZ maintenance and RPZ valve testing.


Whether you require RPZ valve servicing as a part of your yearly maintenance regime, or if the installation of an RPZ valve has been recommended in a Legionella risk assessment or in an audit by your local water authority, our experts can help. Below we have put together an expert guide to help you understand more about installation, testing and maintenance of RPZ valves and what to expect during RPZ testing.


See a case study of a recent RPZ Valve Replacement project undertaken by our team >>


What are RPZ valves?

Reduced pressure zone valves are fitted into potable water systems as a backflow preventer of the mains water supplies. Without RPZ valves, in the occurrence of a sudden lowering of pressure in the water system, the water could flow in the opposite direction, causing contaminated water to enter the supply. If a sudden drop in water pressure occurs; RPZ valves will dump the contaminated water and prevent it from entering into the water supply.

RPZ valves are commonly used in public facilities including schools, car washes, hospitals, food processing areas, launderettes, and even commercial dishwashers. 

Water hygiene: Does my water system need an RPZ valve?

Your local water authority or specialist water hygiene contractor can advise you as to whether an RPZ valve is necessary on your system. Any installed RPZ valves must be tested on an annual basis.


What is a potable water system?

A potable water system holds water that is to be used for human consumption.


How often do I need RPZ valve testing?

RPZ valves are an important backflow preventer. This means they prevent water flowing backwards within your water system and act as an important component in keeping your water system hygiene and Legionella compliant. RPZ valve testing and maintenance should be carried out at least every 12 months, within 30 days of the date your current certificate ends. At Titan Mechanical Services, our WRAS approved valve engineers can carry out yearly testing and also install new RPZ valves. If you are unsure of which RPZ valve service you require, you can get in touch with our friendly team for advice.


Will my water supply be interrupted during RPZ valve testing?

RPZ valve testing is usually a quick process. It takes approximately 30 minutes. However, as this depends on the number of RPZ valves and the facilities in particular, you will be given more accurate information by your engineer.


How much does RPZ valve testing cost?

Please get in touch with our team or visit our 'Get a quote' page for more information about RPZ valve testing cost for your water hygiene compliance.

WRAS approved engineers: RPZ valve Installation and maintenance

Under the Water Industry Act 1991, if you own premises with a water supply you are legally required to ensure that there is an appropriate device installed that acts as a backflow preventer of water. The installation, regular testing and servicing of RPZ valves will help to ensure Legionella contamination risks are managed effectively.

RPZ valve installation and maintenance must be completed by a qualified and WRAS approved tester. At Titan Mechanical, all our remedial work and water hygiene services are carried out by highly trained experts who meet industry standards.


What to expect during RPZ testing

RPZ testing is carried our by WRAS approved valve engineers (RPZ testers) to ensure that your RPZ valve is working as it should. We will visit your facility and determine whether your RPZ valve passes the test, needs repairing or needs replacing.


What happens if my RPZ valve fails testing?

WRAS approved RPZ valves are designed in a way that they can often be repaired. We will either repair or replace your current RPZ valve. We can replace, repair or install RPZ valves of all sizes.


Can you service more than one RPZ valve?

As your facility may have several RPZ valves, we can test your entire water system during one visit. Please get in touch with us for a quote or more information.

Do you offer RPZ valve testing near me?

Yes, we operate nationwide from our base near Liverpool. You can use RPZ valve testing services from Titan Mechanical anywhere in the country.


Further mechanical services we offer

We offer a full suite of services to help your facilities remain compliant. Get in touch with our friendly team to enquire about how we can help you.


Other Mechanical Services

Why choose Titan Mechanical for your RPZ valve testing, installation and water hygiene services?

At Titan Mechanical Services we offer a range of water hygiene services for your facilities. We are experts in water treatment and legionella control and take pride in using this knowledge to provide an excellent level of service to all customers, at every opportunity. All engineers who carry out RPZ valve installation or maintenance must be WRAS approved. All Titan Mechanical Services engineers are WRAS approved.

Contact Titan Mechanical today to ensure that your water system complies with water hygiene quality standards.

50 years experience

Our team of experts have over 50 years of combined experience, bringing a thorough knowledge of the industry and unrivalled expertise in dealing with a variety of water systems.

Highly Accredited

We are proud to have been accredited to the highest standard for all our services. Please visit our homepage to see a full list of accreditations.

Full suite of services

In addition to the planned remedial work and water system maintenance, we also carry out tank refurbishment and tank reline services that are cost effective and completed to a very high standard.

Nationwide coverage

With a Head Office based near Liverpool, we have teams working up and down the country and have the capacity to carry out Legionella remedial works in the South and South East England, North West, Midlands, South East England, and Wales, North, North East, and Scotland.

How much does RPZ Valve Testing cost?

All Titan Mechanical engineers are WRAS approved to fit your RPZ valve and carry out RPZ valve testing to the highest standard.

More information about RPZ Valve Installation, RPZ Valve Testing or Maintenance?

Call 01704 335800 to speak to our expert team.

Get in touch, we're here when you need us