Automatic Air Vent 1/2" with Manual Shut-off and Side Connection

The 1/2” automatic air vent with manual shut-off and side connection is an essential component for removing accumulated air and gases in heating and air conditioning systems. Its main function is to automatically expel air present in the system during filling and to facilitate air intake during draining, ensuring correct and efficient system operation.

The presence of gases such as oxygen, nitrogen, or those generated during the heating cycle can cause corrosion, noise, poor fluid circulation, and reduced thermal performance. This automatic air vent helps prevent these issues, improving the durability and overall efficiency of the installation.

Main Applications

• Domestic and commercial heating systems
• Air conditioning and refrigeration installations
• Hydraulic networks requiring automatic air removal
• Thermal emitters and high points in the system

Construction Features

• Body made of brass according to UNE-EN 12165
• Automatic venting system with float
• Float made of polypropylene (PP)
• Internal spring in AISI 302 stainless steel
• NBR sealing O-ring
• Integrated manual shut-off for maintenance operations

Technical Data

• Connection: 1/2 inch male thread
• Thread type: ISO 228/1
• Side connection
• Maximum working pressure: 10 bar
• Maximum operating temperature: 110 °C

Operation

• Automatically removes accumulated air and gases from the system
• Facilitates venting during system filling
• Allows air intake during system draining
• Venting is effective when the fluid is at rest

Installation

• Recommended installation at high points of the circuit
• Do not vent with fluid in direct circulation
• Should be installed by qualified technical personnel
• Installation must comply with current regulations

This automatic air vent with manual shut-off and side connection is a reliable and durable solution to improve the performance of heating and air conditioning systems, reducing operational problems and increasing the thermal efficiency of the installation.