General description This West Poppy TRV Angled Thermostatic Radiator Valve and Lockshield is designed with a traditional style and is made from high-quality solid brass, ensuring durability for long-term use. It features an un-lacquered brass finish and is suitable for various heating systems. Technical specifications Valve Type: Thermostatic Position: Angled Connection Size: 1/2" BSP Pipe Size: 15mm Height: 142mm Width: 82mm Depth: 55mm Weight: 0.89 Kg Compatibility and accessories Includes one lock shield and one wheel head valve Supplied with decorators caps for full isolation of valves Installation Can be installed on either the flow or return pipework of a radiator TRVs should be installed on the flow rather than the return pipework Requires a system automatic bypass valve for proper function Usage Used in conjunction with a system automatic bypass valve, which is a requirement for all new installations and boiler upgrades Important for avoiding radiator hammer in bi-directional