Varia standard upper automatic air vent valve, in brass.

The air that normally forms inside a heating system must be promptly eliminated to avoid:
- corrosive phenomena
- reduced thermal output and hydraulic efficiency
- localised overheating
- noise due to the passage of air bubbles
- risk of circulating pump faults

Varia air vent valves allow complete, automatic evacuation of the air.

Construction
- Cover in UNI EN 12165 CW617N brass
- Cup in UNI EN 12165 CW617N brass
- Red cap for manual vent in reinforced PA 6
- Black cap for automatic vent in reinforced PA 6
- Float in PP
- Rod in PA 6
- Ring nut in PPO
- Spring in stainless steel
- Shutter in silicone rubber
- O-Ring in NBR

Technical specifications
- Thread as per UNI EN ISO 228-1
- Maximum pressure: 10 bar
- Maximum temperature: +120°C