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B&Q£32.00Visit shop B&Q - Thermostatic Radiator Valve Set Trv Straight With Lockshield 8mmModern Style Pewter Stirling Bold
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The Derry Bold Thermostatic Radiator Valve (TRV) and lockshield set is designed for homeowners and installers seeking a reliable, modern way to manage radiator temperature in UK water heating systems. Its primary benefit is providing precise, thermostatic control to improve heating efficiency, though users should note that installation requires a compatible pipe setup and basic plumbing knowledge to ensure a secure, leak-free connection.
| Colour | Brown |
|---|---|
| Model Part Number | 1431753 |
| Brand | UK Radiators |
Yes, it includes one TRV head, one lockshield, and 8mm reducers, covering the valve requirements for one standard radiator.
Yes, the valves are designed for standard pipe sizes; the included reducers are intended for when you are connecting to 8mm pipes.
Yes, the finish is designed to withstand the operational temperatures of standard domestic hot water radiators.
Simply rotate the thermostatic head to the desired number setting, which corresponds to your preferred temperature range.
While DIY installation is possible if you are experienced with draining and refilling central heating systems, a professional plumber is recommended to ensure safety and warranty compliance.
Check if the internal valve pin is stuck; remove the TRV head and gently tap the pin to ensure it moves freely.
Ensure the compression nut is tightened sufficiently, or re-apply PTFE tape if the seal is compromised.
Ensure the mounting ring is fully tightened onto the valve body until it clicks or locks firmly into position.
For installation, ensure your heating system is fully drained before removing existing valves to prevent water damage. Use appropriate thread sealant or PTFE tape on all pipe connections to guarantee a watertight seal. The set includes 8mm reducers, which makes it compatible with both standard 15mm pipework and smaller 8mm piping setups. To care for your valves, avoid using harsh abrasive cleaners on the grey finish; a simple wipe with a soft, damp cloth is sufficient to maintain its appearance. Periodically check the valve head and lockshield nut for any signs of moisture or leaks.
