• Includes Drayton TRV4 15 mm angled thermostatic radiator valve plus matching lockshield in white finish suitable for modern domestic heating systems
• Class 1 rated for energy efficiency under the European valve manufacturers association scheme delivering high performance control of radiator flow and room temperature
• Features ultra sensitive liquid-filled sensor head, non-stick internals, reverse flow capability and double gland seal for durability and reliability
• Flow-rate adjustable insert enables system balancing directly at the valve body and helps maintain optimum boiler return temperatures for condensing efficiency
• Temperature setting range approximately 10C to 30C with a frost-protection position below 8C and stop settings to restrict maximum setting if required

The Drayton TRV4 Thermostatic Radiator Valve pack (Part No 0707260) provides efficient and reliable temperature control for radiator-based heating systems. Supplied as a 15 mm angled valve body paired with a matching lockshield in a white finish, it offers both functional performance and aesthetic appeal. The TRV4 range is Class 1 rated for energy efficiency, meaning it reacts quickly to ambient temperature changes, maintains stable room temperature and supports modern condensing boiler return temperature requirements. The valve head uses a liquid-filled sensor for precise control and is engineered with non-stick internals, reverse-flow capability, and a double gland seal to ensure long term reliability. Installation is straightforward with support for either compression or push-fit 15 mm connections and the valve body is rated for high temperature service (up to 110 C short term) and high pressures, making it suitable for both domestic and commercial use. Additional features include the ability to pre-balance flow via the insert adjustment, a frost-protection setting that activates if room temperature drops below around 8 C, and range limiting to restrict maximum thermostat head setting. Choose the TRV4 pack where reliable radiator zone control, energy efficiency and durable build quality are required in one compact solution.