PCS Automatic Radiator Bleed Valve, 1/2 Inch Radiator Ventilation Plugs Manual Radiator Bleed Caps Automatic Air Vent for Radiators

Automatic bleeding: The radiator bleed valve can be automatically vented by the source disc. This automatic radiator bleeding feature allows this valve to save heating energy. Self-sealing: When they come into contact with water, the discs expand to prevent leaks. Ensure this valve is only suitable for heating water without additives. High-quality materials: The radiator vent valve is primarily made of brass, making it sturdy and durable. It won't easily deform or rust. Fits standard 1/2-inch vent caps. Product performance: The self-bleeding radiator valve has a maximum operating temperature of 100° Celsius and a maximum operating pressure of 10 bar. Sufficient for everyday use. Easy replacement: It fits all standard radiators with a 1/2" thread and features a cap that stops the automatic bleeding process when needed.