Drayton TRV4 has been designed to offer years of trouble-free service. Its valve internals is made from a material specially formulated to prevent a build-up of lime scale which can cause the Thermostatic Radiator Valve (TRVs) to stick. All Drayton two pipe bodies come with pre-setting internals as standard, which makes system balancing simpler and more accurate.

• EN215 approved
• Energy saving trust recommended
• Bi-Directional valve body
• Lockshield option
• Range limit feature
• 1/2 turn operation