Description
The 22mm x 3/4″ 6 Bar Unvented T & P Relief Valve is an essential safety component for unvented hot water systems, designed to prevent excessive pressure and temperature build-up.
Set to activate at 6 bar, this valve automatically discharges excess pressure and heat, protecting cylinders and system components from damage. It ensures safe and reliable operation in both domestic and commercial installations.
Built for durability and consistent performance, this valve is suitable as a direct replacement for a wide range of unvented cylinders. Its robust construction and standard sizing allow for straightforward installation and 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 is the purpose of a T & P relief valve?
It protects your unvented hot water system by releasing excess pressure and temperature, preventing damage and unsafe conditions.
2. What does 6 bar mean on this valve?
6 bar is the pressure level at which the valve activates to release built-up pressure and heat.
3. Is this valve compatible with all unvented cylinders?
It is compatible with many leading brands such as Megaflo, Kingspan, Joule, and Everflo, but always check your system requirements before purchase.
4. Can I replace a 7 bar valve with a 6 bar valve?
Only if your system is designed for 6 bar. Using the wrong rating can impact safety and system performance.
5. What are common signs of a faulty valve?
Leaking, continuous dripping, pressure discharge, or overheating issues are common signs that the valve may need replacing.









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