Derry Bold - Polished Brass Thermostatic Radiator Valve & Lockshield Straight 8mm

More individual control for your radiator

Designed to combine individual radiator control with a coordinated finish, this Polished Brass Derry Bold thermostatic valve set includes both the TRV and matching lockshield. Its straight layout suits the relevant pipe route, and the liquid sensing mechanism adjusts the valve as surrounding temperature changes.

Why choose these radiator valves?

• Set each room's warmth more independently: Thermostatic control lets this radiator react to the temperature of its own room rather than relying only on the main heating controls.
• Make more efficient use of your central heating: Automatic flow reduction helps avoid continuing to heat an individual room at full radiator output after it has reached the chosen comfort level.
• Give the heating system extra protection from freezing conditions: Its frost-protection function can allow some flow at very low temperatures, helping reduce the risk of water freezing in the radiator and nearby pipework.
• Avoid sourcing a matching lockshield separately: Both the thermostatic side and matching lockshield are included, simplifying the parts you need to source for the radiator.
• Use a fitting designed around your pipe direction: Where pipework travels horizontally along the wall into a side radiator connection, the straight body keeps the route direct.
• Move beyond simple on-or-off radiator control: The multi-temperature head lets you select different heating levels to suit how much warmth the room needs.
• Let the thermostatic mechanism respond without constant adjustment: Room-temperature changes are detected by the liquid sensor, allowing the valve to regulate flow automatically.
• Choose a finish that complements the installation: The modern valve shape keeps the installation looking clean and contemporary. Its polished & un-lacquered Polished Brass surface lets the valves become part of the radiator's overall finish rather than an afterthought.
• Add longer-term confidence to the purchase: The 3 years guarantee provides added reassurance for a product intended to remain part of the heating installation for years to come.

What's included

• Thermostatic radiator valve head with body
• Matching lockshield valve
• Decorator's cap

Key technical details

• Connection Size Type: 1/2 BSP
• Fitting Type: Straight
• Connection: 8mm
• Control Type: Multi Temperature Control