Valsteam ADCA Stainless Steel Air Vent 1/2 in, 1/8 in - 345063

Vertical installation angled connection. Vacuum Breaker. The VB21 vacuum breakers are simple and reliable devices that automatically relieve or "break" an unwanted vacuum condition, restoring the atmospheric pressure. This device is particularly suitable for steam heated units of small and medium volume as heat exchangers, heating coils, calorifiers, jacketed kettles, steam boilers, etc. Connections are female screwed