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Appliances Direct (BID)£43.99Visit shop Maesta Traditional Trv Corner Thermostatic Radiator Valves With Lockshield TRVT-CN-9BB
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The Maesta Traditional TRV Radiator Valves are designed for homeowners seeking to blend classic aesthetic appeal with modern thermostatic climate control in their heating systems. Ideal for traditional and cast iron radiators, these valves provide precise heat management to optimize energy efficiency and comfort. While they offer a high-quality brushed brass finish and robust construction, users should note that they are not bi-directional, meaning installation must strictly follow the flow and return positioning to ensure proper functionality.
| Model Part Number | TRVT-CN-9BB |
|---|---|
| Brand | Maesta |
They are designed for standard water-based radiators, particularly traditional and cast iron styles using 15mm piping.
If you are comfortable draining a heating system and basic plumbing, yes. If not, we recommend hiring a professional to ensure the flow and return are correctly identified.
The lockshield valve is used to balance the heating system by restricting the return flow, ensuring all radiators in your home heat up at a similar rate.
These are mechanical thermostatic valves and do not require electricity to function, so they will continue to manage heat flow as normal.
If the ambient room temperature drops below 7C, the valve will automatically open to circulate warm water, preventing the radiator from freezing and potentially bursting.
Ensure the valve was not installed backwards; the thermostatic head must be on the flow side.
This is often caused by the valve being installed on the wrong side of the radiator (flow vs. return). Check your pipe orientation.
Ensure the valve body is not overtightened against the radiator connection, as this can compress internal seals.
Installation requires basic plumbing skills. Ensure your system is drained before removing existing valves. Because these valves are not bi-directional, it is critical to install the thermostatic valve on the flow pipe and the lockshield valve on the return pipe. Failure to do so may cause the valve to rattle or function incorrectly. The valves are compatible with standard 15mm piping and 1/2 BSPT connections. To maintain the brushed brass finish, avoid using abrasive chemical cleaners. Simply wipe down with a soft, damp cloth and dry immediately to prevent water spotting.
