Max. operating pressure: 10 Bar Max. pressure differential: 1 Bar Max. water temperature: 100°C Max. ambient temperature: 50°C Temperature adjustment range: 0 to 28°C Frost setting: 7°C Thermostatic Radiator Valve suitable for installation on the flow to the radiator. It comes with a matching lock-shield that is installed on the return. It has a stylish chrome appearance and seven different temperature settings, including a anti-frost setting.