Eurotronic 515471 Automatic Radiator Air Vent Valve 1/2 inch

Air trapped in radiators and towel rails causes uneven heating, gurgling noises, and wasted energy. The Eurotronic 515471 automatic air vent valve continuously releases trapped air, keeping your heating system efficient and quiet without manual bleeding.

Who is it for

Homeowners, plumbers, and heating engineers who want a maintenance-free solution for radiators, towel rails, and heating circuits. It fits standard 1/2" connections and works with water or water-glycol mixtures up to 30%.

Main features

• Automatic continuous air venting – no manual bleeding required
• Nickel-plated brass body for corrosion resistance and durability
• Self-sealing O-ring design prevents water leakage
• Reduces gurgling noises and improves heat distribution
• Vertical installation position for optimal performance

Specifications

• Connection thread size: 1/2" (DN15), external thread
• Material: Nickel-plated brass
• Max. operating pressure: 10 bar
• Max. operating temperature: 110 °C
• Medium: Water, water-glycol mixtures (up to 30%)
• Installation position: Vertical
• Seal type: O-ring, self-sealing

Tips

Install the valve vertically on the highest point of the radiator or heating circuit for best air release. Check the O-ring annually and replace if worn. Compatible with standard 1/2" radiator connections.