Description
The 15mm x 1/2″ 7 Bar Unvented T & P Relief Valve is a vital safety component designed to protect unvented hot water systems from excessive pressure and temperature.
Set to activate at 7 bar, this valve automatically releases built-up pressure and heat, preventing damage to cylinders and connected components. It ensures safe and reliable system operation in both domestic and commercial installations.
Manufactured for durability and consistent performance, this valve is suitable as a direct replacement for a wide range of unvented cylinders. Its compact design allows for easy installation while maintaining long-term reliability.
Why This Valve Matters
- Protects against dangerous pressure and temperature build-up
- Ensures safe operation of unvented cylinders
- Meets UK compliance standards (WRAS approved)
- Prevents costly damage and system failure
Frequently Asked Questions
1. What does a T & P relief valve do?
It releases excess temperature and pressure from your unvented hot water system to prevent overheating, damage, or unsafe conditions.
2. What does 7 bar mean?
7 bar is the pressure level at which the valve activates. Once this limit is reached, the valve opens to safely discharge pressure.
3. Is this valve suitable for all unvented cylinders?
It is compatible with many leading brands such as Megaflo, Kingspan, Joule, and Everflo, but always check your system’s required pressure rating before purchase.
4. Can I replace a 6 bar valve with a 7 bar valve?
Only if your system is designed for 7 bar. Using the wrong pressure rating can affect safety and performance.
5. What are the signs of a faulty T & P valve?
Common signs include constant dripping, leaking, pressure discharge, or overheating issues in your system.
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