Automatic rehydration valve: is a combination of pressure reducing valve, filter, globe valve and check valve, which can keep the system pressure at a stable value. When the pressure is reduced, the valve will open automatically to replenish the system and reach the set pressure , The valve automatically closes, the valve comes with a filter to prevent the inflow of impurities, the valve built-in check valve to prevent the hot water heating system back to the cold water line, even if the inlet pressure changes, the regulator can maintain the outlet Pressure stability, emergency, the hand wheel can completely cut off the water flow. Technical parameters: Maximum working pressure: 10bar Replenishment pressure setting range: 0.5-4bar The maximum working temperature: 110 ℃ The factory default pressure: 1.5bar Water Industry Interface Thread Standard: UNI ISO228 / 1 Gauge Interface Thread Standard: ISO7 / 1