Derry Bold - Polished Brass Thermostatic Radiator Valve & Lockshield Corner 15mm

More individual control for your radiator

The Derry Bold Polished Brass thermostatic radiator valve and matching lockshield give you room-by-room control over an individual radiator while keeping the installation visually coordinated. Its corner 15mm fitting and liquid sensor combine practical connection design with automatic thermostatic response as the room temperature changes.

Why choose these radiator valves?

• Manage radiator warmth around how the room is used: Instead of leaving the radiator fully open, the TRV adjusts the flow of hot water as the surrounding room temperature changes.
• Use less unnecessary heat in rooms that are already warm: Restricting flow when less heat is needed can help prevent an already-comfortable room from continuing to receive unnecessary radiator heat.
• Reduce the risk of freezing in colder conditions: When surrounding temperatures become very low, frost-protection behaviour can permit limited flow to help protect the radiator and connected pipework.
• Finish both sides of the radiator with one set: The set includes the TRV and matching lockshield together, giving you both radiator valves in one coordinated purchase.
• Use a fitting designed around your pipe direction: For pipework coming straight from the wall to a side-entry radiator, this corner layout keeps the connection compact.
• Adjust the radiator to suit how you use the room: Multi-temperature adjustment lets the radiator be set to a more appropriate comfort level for the room.
• Let the valve respond automatically to room temperature: The liquid sensing element changes with room temperature and drives the valve's automatic thermostatic response.
• Choose a finish that complements the installation: The contemporary body shape is designed to complement modern radiators without adding unnecessary visual bulk. The Polished Brass colour with a polished & un-lacquered finish gives the visible valve set a considered decorative appearance.
• Choose a valve set backed beyond installation: A 3 years guarantee gives you longer-term reassurance beyond the initial installation.

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: Corner
• Connection: 15mm
• Control Type: Multi Temperature Control