3Pcs Automatic Bleed Valves Replacement Bleeding Radiator Air Vent 1/2inch 3/4inch Plugs Enduring Plugs Valves

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  • Widely used automatic bleeding saves time and work, especially on many radiators in the house
  • If they come into with water, the source discs seal. When air, they open and let escape. Make sure that this Valves is only suitable for heating water without additives
  • The Valves have a self-sealing thread with rings. The automatic vent works with the help of source discs
  • 3 operating modes 1. The middle button is fully screwed in, automatic exhaust (it closes automatically when there is none air in the radiator); 2. The middle button is partially screwed, the vent is open; 3. Unscrew the middle button, the ventilation slots are closed

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