Brass automatic air vent with protection

Product Overview and Main Function

• Product Name: 1/2 inch Brass Side Air Vent Valve

• Main Function: Automatically or manually releases unwanted air from a pressurized water system (such as heating systems, radiators, and pipelines). This helps prevent problems such as air locks, reduced efficiency, noise (banging), and corrosion.

Key Features and Attributes

• Material and Construction:

• Body: Forged brass. It offers higher strength, corrosion resistance, and durability compared to cast brass or other materials.

• Internal mechanism: The float is usually made of plastic, while the main seal is made of high-temperature-resistant nitrile rubber (NBR) or EPDM.
  This ensures reliable operation and tight sealing.

Operation and Design

• Automatic operation: When air enters the valve chamber, the float drops, opening the outlet and releasing the air. When water enters again, the float rises and reseals the valve.

• Manual control: Includes a manual screw or cap that can be opened to intentionally release air, which is necessary for system maintenance or initial filling.

• Side discharge port: The discharge outlet is located on the side, allowing a hose to be connected so that released water can be directed to a drain or safe location. This is an important feature for clean installation and preventing water damage.

Performance and Specifications

• Pressure rating: Typically a maximum working pressure of 10 bar (~145 PSI). Always check the rating of the specific product.

• Temperature rating: Suitable for temperatures up to 110 °C (230 °F), meeting the requirements of most hot water and heating systems.

• Medium: Designed for water and glycol mixtures (with inhibitors).

Application Scenarios

• Hydronic heating systems: on radiators, manifolds, and boiler rooms

• Solar thermal systems

• Hot water recirculation systems

• Industrial cooling circuits