Preventing Scalding Risks with Thermostatic Mixing Valves
Scalding from excessively hot water poses a significant public health risk, particularly for vulnerable groups such as children, seniors, and individuals with disabilities. Facilities like care homes, hospitals, schools, and public buildings have both a legal obligation and ethical duty to mitigate scalding risks.
At Pipe Testing Services, we specialise in installing and maintaining thermostatic mixing valves (TMVs)—a proven solution to deliver safe, consistent water temperatures.
Scalds account for a substantial portion of burn injuries annually. According to the British Burns Association, approximately 250,000 people in the UK suffer burn injuries each year, with 70% classified as scalds (thermal injuries). Vulnerable populations are disproportionately affected, underscoring the urgency of proactive safety measures
What Are Thermostatic Mixing Valves (TMVs)?
A TMV is a mechanical valve that blends hot and cold water to a pre-set, safe temperature. Using an internal thermostat, it dynamically adjusts the water mix to maintain consistency, even during supply fluctuations.
38–41°C: Ideal for baths, showers, and sinks used by children or seniors (prevents scalding).
44–46°C: Suitable for handwashing and cleaning tasks (balances safety with Legionella control).
TMVs ensure compliance with UK regulations while preventing bacterial growth in stored water (stored at 60°C to kill Legionella).
Where are TMVs Crucial to Install?
Install TMVs at high-risk outlets to meet HSE guidelines and Building Regulations Part G:
- Showers and baths - Set TMVs to 41°C or less to prevent serious burns.
- Hand wash sinks - TMVs should be set to 41°C maximum for hand washing.
- Janitor sinks and utility sinks - Fit TMVs set to 46°C to allow higher temperatures for cleaning.
- Sinks used by children or seniors - Install TMVs set to 38°C.
- Kitchen sinks - TMVs help provide a safer hot water supply for washing dishes.
TMV Models & Certifications
Choose the right TMV for your needs:
- TMV2: Certified for domestic use (e.g., schools, hotels).
- TMV3: Required in healthcare settings (compliant with NHS standards).
- Point-of-Use vs. Centralised Systems: Compact valves for single outlets or larger systems for entire buildings.
Our experts recommend compliant models tailored to your facility’s needs.
Complying with Scalding Prevention Regulations
Facilities in the UK have clear legal duties around scalding risks under legislation like the Health and Safety at Work Act and the Management of Health and Safety at Work Regulations. The HSE provides specific guidance on controlling hot water temperatures in care settings, schools, and public buildings to prevent accidental scald injuries. Installing TMVs is a key part of complying with regulations and codes of practice.
Regular TMV Maintenance is Essential
To ensure TMVs provide effective scalding prevention over time, proper maintenance is essential:
- Strainers should be inspected and cleaned every 3-6 months to remove debris and scale build-up.
- Annual fail-safe testing checks the TMV will shut off hot water if the cold supply fails.
- TMVs may need recalibrating if the set temperature has drifted from the target.
- Internal components like seals, springs, and O-rings wear and require replacement.
Potential Cost Savings
As well as improving safety, installing TMVs can create cost savings for facilities. Blending water to optimum temperatures reduces energy bills from heating excess hot water. And importantly, preventing just one severe scald incident can avoid substantial costs in medical claims and legal fees.
Why Choose Pipe Testing Services?
With regular use, TMVs are subject to wear and tear. Facilities should utilise a specialist contractor for supply, installation, commissioning, testing, and maintenance of TMVs.
At Pipe Testing Solutions, we are experts in thermostatic mixing valves and scalding prevention. Our experienced team can handle:
- TMV risk assessments to identify needs.
- Supply and fitting of TMV models for your specific application.
- Commissioning and outlet temperature testing.
- Ongoing maintenance contracts and safety checks.
Prevent Scalding and Ensure Compliance with PTS
Our mission is to deliver reputable scalding prevention services that ensure the safety of your hot water systems. Contact us today to discuss your TMV needs or schedule a consultation. Our knowledgeable team stands ready to assist.
Don’t wait for a scalding incident or safety audit failure – safeguard your hot water systems now. Installing thermostatic mixing valves is a straightforward way to start controlling scald risks from hot water outlets. As specialists in TMVs, we know the regulations and are experts in preventative measures for healthcare facilities, care homes, schools, public buildings and more across the UK.
Contact Pipe Testing Solutions today to get expert recommendations on TMVs. We can also provide assistance with full scalding risk assessments surveying all your hot water outlets. Ultimately, safe hot water means protecting your occupants and meeting your duty of care – so trust us to handle scalding prevention and ensure TMV compliance on your behalf.
Phone: 01922 451646
Email: enquiries@pipetestingservices.co.uk
Address: Unit 27 Birchbrook Industrial Estate, Shenstone, Lichfield, Staffs, WS14 0DJ
FAQs
TMVs should be tested at least annually, with more frequent checks every 3-6 months recommended for high-risk settings.
Yes, TMVs can usually be installed on existing hot water outlets, provided the pipes are the correct diameter.
TMVs should be inspected and tested at least annually to ensure they are operating within the correct temperature range.
For baths and showers, 41°C or less is recommended. Hand wash sinks should be 38-41°C.
TMVs reduce energy loss from very hot water flowing through pipes and fixtures.
TMVs alone don’t control Legionella. Maintaining hot water at 60°C and cold below 20°C is also vital.