Derry Bold - White Thermostatic Radiator Valve & Lockshield Straight 8mm

Control radiator warmth with greater precision

Give this radiator its own level of thermostatic control with the Derry Bold White TRV and lockshield set. The straight 8mm connection is designed for the appropriate pipe route, while the liquid sensor works with the valve to reduce hot-water flow when the room no longer needs as much heat.

Why choose these radiator valves?

• Take more control of individual room comfort: Instead of leaving the radiator fully open, the TRV adjusts the flow of hot water as the surrounding room temperature changes.
• Avoid heating a room more than you need: By reducing hot-water flow when the room is warm enough, the valve can help limit unnecessary heating in that space.
• Add protection during very cold weather: 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.
• Get the complete valve pair in one purchase: The set includes the TRV and matching lockshield together, giving you both radiator valves in one coordinated purchase.
• Make the connection work with your installation layout: Straight valves suit side-entry radiator layouts where the pipework runs along the wall to meet the radiator.
• Move beyond simple on-or-off radiator control: Several thermostatic settings give you more flexibility than a simple manual on/off valve.
• Get automatic temperature-responsive control: Room-temperature changes are detected by the liquid sensor, allowing the valve to regulate flow automatically.
• Choose a finish that complements the installation: Its modern profile gives the radiator connection a neater, more streamlined finishing detail. Its gloss White surface lets the valves become part of the radiator's overall finish rather than an afterthought.
• Choose with added confidence beyond installation: With a 3 years guarantee, the set comes with added reassurance for the years after 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: Straight
• Connection: 8mm
• Control Type: Multi Temperature Control