3 Pcs Auto Air Vent Self Bleeding Radiator Valve Replacement 1/2" 3/4" Auto Bleed Valve Durable

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  • When in contact with water, the source disc is sealed Opens and releases when air is in. Make sure this valve is only suitable for heating water without additives
  • 3 Working Modes 1.The middle button is fully screwed, automatic exhaust (automatically closes when air runs out in the radiator). 2. The middle button is partially screwed and vented. 3. Unscrew the middle button to close the ventilation slot
  • The valve has a self sealing screw with ring. Automatic vents work with the help of a source disc

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