Description
The 22mm x 3/4″ 10 Bar Unvented T & P Relief Valve is an essential safety component for unvented hot water systems, designed to control excess pressure and temperature.
With a 10 bar activation, this valve automatically releases built-up pressure and heat, helping to protect cylinders and system components from damage. It ensures safe and efficient system operation in both domestic and commercial installations.
Built with durability in mind, this valve offers reliable long-term performance and is suitable as a direct replacement for a wide range of unvented cylinders. Its compact design allows for easy installation and dependable operation.
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 to prevent damage or unsafe conditions.
2. What does 10 bar mean?
10 bar is the pressure level at which the valve activates. When pressure exceeds this limit, the valve opens to safely discharge it.
3. Is this valve suitable for all unvented cylinders?
It is compatible with many systems including Megaflo, Kingspan, Joule, and Everflo, but you must match the pressure rating required by your cylinder.
4. Can I replace a lower bar valve with a 10 bar valve?
Only if your system is designed for 10 bar. Using the wrong rating can affect safety and system performance.
5. What are common signs of a faulty valve?
Continuous dripping, leaking, pressure discharge, or overheating issues are common indicators that the valve may need replacing.








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