Bronze Automatic Air Vent

The Envotec model ETA-6 Automatic Air Vents used in plumbing, HVAC, and fire fighting systems to continually remove potentially dangerous air trapped in the system without the need for manual bleeding. The atmosphere within a piping system can cause excessive noise due to trapped air, reduce the accuracy of control valves and the performance of heating and cooling equipment. One of the essential functions of the Envotec Automatic Air Vent is to release air as the system is being filled with water and then automatically isolating and preventing water loss from the system.

The Envotec Automatic Air Vent ETA-6 are high-quality solid bronze body & stainless steel float constructed to provide long life & durability in piping systems to help vent air when commissioning a system.

  • Bolted Cover for easy access.
  • A synthetic rubber seat is used to prevent leakage.
  • Free from corrosion, since the body of ETA-6 is made of bronze.
  • To prevent scale formation, a unique valve mechanism keeps the seat surface clean.
  • Compact body while exhaust capacity is 1.5 times larger than that of the conventional air vent valve.
  • Parts are easy to replace, maintain and inspect from outside even if the valve seat surface is damaged in long period operation.

  • Max. Working pressure: 300 psi (20.68 bar)
  • Max. Working temperature: 120ºC (248ºF)
  • Connection: Female Threaded

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