1/2 Inch Automatic Air Vent Valve Self Bleeding Radiator Valve with Auto Cut-off Function for Central Heating Systems(5pcs)

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  • Automatic Air Vent for Radiators This 1 2" automatic air vent is designed for easy and uncomplicated replacement on conventional radiators with 1 2-inch threads. It ensures efficient and hassle-free operation.
  • Swelling Discs for Leak Prevention Equipped with swelling discs, this air vent valve swells up when in contact with water, effectively leakage and a secure and reliable performance.
  • Easy Operating Modes This product offers three operating modes for usage. When the middle knob is fully screwed in, it enables automatic venting. Partially screwing in the middle knob opens the vent, while unscrewing the middle knob closes the vent.
  • Shut Off Cap for Manual Control Featuring a shut off cap, this valve provides manual control over the auto venting process. Users can stop auto venting when needed, offering flexibility and convenience.

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