Derry Bold - Pewter Thermostatic Radiator Valve & Lockshield Corner 8mm

Thermostatic control with a coordinated valve set

This modern Derry Bold TRV set pairs a thermostatic radiator valve with a matching lockshield, helping you manage the warmth of an individual room without relying only on the main heating controls. The corner body connects to 8mm pipework, while the liquid sensor responds automatically to changes in room temperature.

Why choose these radiator valves?

• Manage radiator warmth around how the room is used: The thermostatic head responds to room temperature and regulates hot-water flow through that radiator as the selected comfort level is reached.
• 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.
• Help protect the radiator when temperatures fall: When surrounding temperatures become very low, frost-protection behaviour can permit limited flow to help protect the radiator and connected pipework.
• Simplify the purchase with both valves supplied: 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: For pipework coming straight from the wall to a side-entry radiator, this corner layout keeps the connection compact.
• 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.
• Give the radiator a more considered finishing detail: A cleaner modern form helps the valve set feel coordinated with contemporary radiator designs. The Pewter colour with a matt & lacquered finish gives the visible valve set a considered decorative appearance.
• 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: Corner
• Connection: 8mm
• Control Type: Multi Temperature Control