TMV Replacements Sheffield

TMV Replacements at a Secondary School in Yorkshire

Project Brief

A secondary school in Sheffield had been experiencing persistent issues with low hot water temperatures at various outlets across the site. Despite the central calorifiers maintaining temperatures above 60°C, many taps and basins were delivering cold or lukewarm water. Titan Mechanical Services was asked to investigate. Following an engineering survey, our team quickly identified the problem - several ageing thermostatic mixing valves (TMVs) on site had deteriorated. Their internal check valves had seized, allowing cold mains water to pass through the valves and enter the hot supply. A targeted replacement programme was required to restore the system’s performance and safety.

Solution

Our full turnkey proposal included:

Full TMV Condition Survey: Our engineers conducted a detailed inspection of every TMV on site, performing failsafe tests to confirm operational status. This allowed us to identify 22 units that were no longer functioning as intended and posed a risk to both temperature regulation and compliance.

Planned Holiday Installation: To avoid disruption to the school’s daily operations, all replacement works were scheduled and carried out during the holiday period. This allowed for uninterrupted access and a streamlined installation process.

Modern Valve Replacement: The 22 failed TMVs were removed and replaced with WRAS-approved TMV3 valves. Each installation included pipework adaptations as required, ensuring a secure and compatible fit with the existing system layout.

Compliance and Best Practice: All works were delivered in accordance with plumbing industry best practice and ACOP L8 requirements. Our focus was not only on restoring performance, but also on ensuring long-term system compliance and reliability.

Key Benefits Delivered

No Disruption: By carrying out the works during the school holidays, the entire installation was completed without affecting staff or students.

Temperatures Restored: The site’s hot water temperatures returned to their correct levels, providing safe and consistent delivery at all points of use.

Compliance Re-established: With the faulty TMVs removed and modern replacements installed, the school’s hot water system was once again fully compliant with all relevant safety and hygiene standards.

To find out how Titan Mechanical Services can improve the performance and safety of your hot water systems, visit our TMV Services page. To see more of our recent hot water system projects, hit the button below:

MORE HOT WATER SYSTEM PROJECTS